WashTastic - 1W node based on E22-900M30S and promicro NRF52 | Meshtastic | Page 3

silver crest Mar 16, 2025, 4:54 PM

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What does the cn3791 do?

olive basin Mar 16, 2025, 4:55 PM

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4.5-28v input 🙃

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Ghe dip switch thing has setting for 5,6,9,12,18 and 24v mppt iirc

gilded cedar Mar 16, 2025, 5:06 PM

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olive basin 4.5-28v input 🙃

SWEET!

olive basin Mar 16, 2025, 5:12 PM

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I'll just have to upload it 😅

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Tomorrow 😅

silver crest Mar 16, 2025, 10:18 PM

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olive basin 4.5-28v input 🙃

WAIT, So i could put a 12V panel right into it???

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Why you put all the cool things after I buy my node

remote jungle Mar 17, 2025, 12:35 AM

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Yes! I think I asked for this, epic that you made it 😄

gilded cedar Mar 17, 2025, 12:52 AM

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I'd been asking for it for awhile.. LOL

olive basin Mar 17, 2025, 2:24 AM

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silver crest WAIT, So i could put a 12V panel right into it???

Yup

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U do need more nodes right? I know u do 🙃

silver crest Mar 17, 2025, 2:39 AM

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I mean yes but I’m only 15 without a job so I’m broooooke

olive basin Mar 17, 2025, 3:30 AM

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Fair

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Its only like 20€ per board 🙃

upbeat ledge Mar 17, 2025, 5:01 AM

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olive basin Its only like 20€ per board 🙃

„But“ it’s nrf52 so no json over mqtt as of now?

olive basin Mar 17, 2025, 5:06 AM

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and never

upbeat ledge Mar 17, 2025, 5:07 AM

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olive basin and never

Not enough power/ram? or is that a design decision? Because I think esp32 can do it? Don’t have any near to test it

olive basin Mar 17, 2025, 5:07 AM

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esp32 can do it yes but nrf52 can't

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its missing something iirc

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or something like that

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don't remember what it was

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nrf doesent even have wifi lol

upbeat ledge Mar 17, 2025, 5:09 AM

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Well it has BLE and now even seems they have implemented the Ethernet. Back when I started I think I was able to get json over mqtt when proxying my phones internet over BLE. I never really used the two esp32 devices I own. I kinda started straight into rak once they were available

olive basin Mar 17, 2025, 5:10 AM

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oh ye ethernet is available on rak but it can only do mqtt 🙃

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nothing else

upbeat ledge Mar 17, 2025, 5:11 AM

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olive basin oh ye ethernet is available on rak but it can only do mqtt 🙃

That’s more than enough for an autonomous balcony solar router that should somehow report its telemetry into grafana or home assistant

olive basin Mar 17, 2025, 5:11 AM

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tru

upbeat ledge Mar 17, 2025, 5:12 AM

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So about your node: it is based around a rak? So also only BLE, no WIFI and probably nocethernet either?

olive basin Mar 17, 2025, 5:12 AM

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not rak but nrf52 yes.

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only ble

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and lora ofc xd

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dis is the newest version where i added CN3791 for solar charging

upbeat ledge Mar 17, 2025, 5:13 AM

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Right. Rak has the lora bundled and that was the „problem“ for your node specs in the first place 😉

upbeat ledge Mar 17, 2025, 5:14 AM

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olive basin dis is the newest version where i added CN3791 for solar charging

What battery types on the charger?

olive basin Mar 17, 2025, 5:14 AM

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lithium

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only iirc

upbeat ledge Mar 17, 2025, 5:15 AM

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So for outdoor nodes in the colder parts of europe Keith‘s solar charger is still king 😉

olive basin Mar 17, 2025, 5:16 AM

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i mean lithium will work here too 😅 as one of our nodes survived the winter without issues :)

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19Ah, soshine clone and rak

upbeat ledge Mar 17, 2025, 5:18 AM

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The question is how long? Charging below 0° will probably degrade it - I don’t think anyone has data on how fast though

olive basin Mar 17, 2025, 5:18 AM

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theres a trick to it 🙃

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dont charge it faster than 0.02C

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tho it will still degrade but slower

upbeat ledge Mar 17, 2025, 5:19 AM

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olive basin dont charge it faster than 0.02C

But who decides how fast it’s charging. Because that’s probably not going to cut it for 24/7 use?

olive basin Mar 17, 2025, 5:19 AM

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u decide :) if rak can charge at max of 300mA u just need a big enough battery to charge at 0.02C

upbeat ledge Mar 17, 2025, 5:23 AM

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Another connectivity question: you node does BLE - so I can connect my phone. Any way to „get telemetry“ from a linux board next to it? Probably via serially or something like that. In one of the solar roof nodes there will be a raspberry zero. And my plan is that the mesh node is completely solar, and if there is regular power, then the zero will live and somehow pull telemetry and push it to a server

olive basin Mar 17, 2025, 5:24 AM

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u can connect usb to the promicro and pull it via serial

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with python cli

upbeat ledge Mar 17, 2025, 5:24 AM

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Oh, right. Basically like the rak on a pc

olive basin Mar 17, 2025, 5:24 AM

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yup

upbeat ledge Mar 17, 2025, 5:24 AM

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That would work

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Dumb question but: when do you think will be the best point (revision wise) to go put it on the roof 😉

olive basin Mar 17, 2025, 5:26 AM

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v0.3.3b is the newest one but it doesent have cn3791 😅

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i will publish this revision soonish 😅 today at somepoint xd

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it should work but dont quote me on that lol

upbeat ledge Mar 17, 2025, 5:28 AM

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olive basin v0.3.3b is the newest one but it doesent have cn3791 😅

So I‘d definitely wait for the solar one. Anything else planned that would make sense to wait for? - I‘m not in a rush for that node. It’s running a rak now and it has problems with the panel/battery, so there’s some troubleshooting necessary anyway

olive basin Mar 17, 2025, 5:28 AM

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the 3.3b does have solar input but its only rated for max 6V

upbeat ledge Mar 17, 2025, 5:29 AM

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olive basin the 3.3b does have solar input but its only rated for max 6V

I think my panels are more than 6v

olive basin Mar 17, 2025, 5:29 AM

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this one is 4.5-28V

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we jumped form 3.3b to 3.5 😅 3.4 felt bit sad lol

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since it was semi big change lol

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this spot needs something 😅 bit empty

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upbeat ledge Mar 17, 2025, 5:49 AM

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Whats the connector next to sw1?

olive basin Mar 17, 2025, 5:53 AM

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solar and battery in this order 🙃

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oh

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that

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its i2c

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same with the header next to it

upbeat ledge Mar 17, 2025, 5:54 AM

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Nice. So external stuff

olive basin Mar 17, 2025, 5:54 AM

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the connector is groove

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theres also pads for gps

meager spruce Mar 17, 2025, 6:35 AM

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olive basin

You could fit 2x QWIIC's in place of that Grove.... just saying lol

olive basin Mar 17, 2025, 6:35 AM

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tru

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maybe one day 🤣

meager spruce Mar 17, 2025, 6:38 AM

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Not gonna lie, the thought of assembling a Washtastic >0.3.3 by hand intimidates me now.

olive basin Mar 17, 2025, 6:39 AM

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V0.4 🙃

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darnit i need to make a new diagram 🤣

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this no longer is true for 3.5 🤣 i mean most are xd

olive basin Mar 17, 2025, 7:12 AM

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https://github.com/valzzu/meshtastic-pcbs/tree/main/WashTastic

GitHub

meshtastic-pcbs/WashTastic at main · valzzu/meshtastic-pcbs

PCBs i've made for meshtastic. Contribute to valzzu/meshtastic-pcbs development by creating an account on GitHub.

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v0.3.5 is released

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no clue if it actually works 🤣

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should tho

remote jungle Mar 17, 2025, 3:32 PM

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I'm ready to order 🙂

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(this is 0.3.5)

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AO3401A is available instead of AO3401-L

olive basin Mar 17, 2025, 3:45 PM

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Ummm...... Gotta check what that was

olive basin Mar 17, 2025, 3:46 PM

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remote jungle AO3401A is available instead of AO3401-L

Should be fine to use the other one 😅

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Waiting to see if it works 😅

heady mulch Mar 17, 2025, 4:52 PM

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remote jungle AO3401A is available instead of AO3401-L

Search for ao3401a and basic parts

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Should be from alpha omega

olive basin Mar 17, 2025, 4:53 PM

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Ill change it to that mosfet tomorrow 🙃

remote jungle Mar 17, 2025, 5:06 PM

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that was the one I could easily find, what do I do with the other parts?

olive basin Mar 17, 2025, 5:11 PM

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Just find a part that matches 😅

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Ill find part numbers tomorrow if nothing else

white wind Mar 18, 2025, 4:51 PM

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Hey all, My node's solar panel/charging is having a hard time keeping up with the power draw. I have 6 18650s in parallel that was working fine with a RAK19007 for 3 months with this solar panel https://www.amazon.com/dp/B099RSLNZ4?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1&th=1

no GPS installed, Just Washtastic, solar panel, and Batteries. Any thoughts?

Soshine Mini Solar Panel - USB Solar Panel Charger 5v 6w with High ...

olive basin Mar 18, 2025, 5:06 PM

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i mean it has 1W radio 😅

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depending how active the mesh is it might not keep up

blissful inlet Mar 18, 2025, 5:18 PM

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FYI - When I was deploying the node with just USB Power I noticed that it wasn't making it's way to the destination even with a 20W power supply. When I added the battery it was finally putting out enough power.

olive basin Mar 18, 2025, 5:25 PM

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ye, the promicro usb is not charging the battery xd

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its supplying only 100mA or 300mA

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sooo

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ye

blissful inlet Mar 18, 2025, 5:30 PM

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olive basin ye

Good to know. Thanks!

white wind Mar 18, 2025, 6:19 PM

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hmm... soo I would have better luck with a solar controller and more powaaaa

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Missed your update by about a month 😦

olive basin Mar 18, 2025, 6:22 PM

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It has solar port

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It can charge at max 1A 😅

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If u enable the boost

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Tho probably still can't keep up 😅

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Cn3791 supposedly can do upto 2A

white wind Mar 18, 2025, 6:26 PM

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After it dies and charges back up, it doesnt restart correct?

blissful inlet Mar 18, 2025, 6:27 PM

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So let me get this correct 😄 , it will output 4.2 - 4.5V onto the battery terminal when the USB is plugged in, so the battery will take a charge, just very slowly. So that could explain why the node goes offline and then comes back....

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I'll wire up a 5V supply to the solar connector and swap out the USB-C charger, next time I'm near that node.

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I just checked the logs and this is the node running on USB-C and one 18650 battery. None of my other nodes have these squiggly battery lines :-). Thanks for info, I'll make sure to correct it.

olive basin Mar 18, 2025, 6:48 PM

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white wind After it dies and charges back up, it doesnt restart correct?

Depends what version of WashTastic u have, there was a mistake that was fixed in 0.3.3 iirc 😅

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If the battery falls below certain point, theres a possibility of it not coming back up

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And if the power fluctuates it might corrupt the flash if the node keeps starting and loosing power over and over again

blissful inlet Mar 19, 2025, 11:27 AM

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Hello! I have a "Special" Washtastic board. It works fine with USB-C Power + Battery. HOWEVER, when It just runs off battery (powered by 5 x Samsung 18650), the LFS gets corrupted and everything stops working. Then I need to do a Factory Reset to bring it back and reconfig it. I already checked the solder joints on the pro micro. Any thoughts?

meager spruce Mar 19, 2025, 11:38 AM

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blissful inlet Hello! I have a "Special" Washtastic board. It works fine with USB-C Power + B...

What version of the board are you having an issue with?

blissful inlet Mar 19, 2025, 11:56 AM

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meager spruce What version of the board are you having an issue with?

V3.1 . I have 4 boards total. One is in a fixed location (USB and Batt), two are mobile nodes (batt powered) and my problem child is supposed to be a repeater with batt and solar.

heady mulch Mar 19, 2025, 12:02 PM

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I'd double check, but that may be the one where the BPC isn't right.

olive basin Mar 19, 2025, 12:45 PM

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0.3.3 fixed the protection but it should still work like i have v0.2 working

meager spruce Mar 19, 2025, 12:47 PM

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Am I mistaken, or does @blissful inlet's issue sound exactly like the issue @olive basin mentioned in literally the message before it?

olive basin Mar 19, 2025, 12:49 PM

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maybe 😅

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who knows

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it is kinda weird it only works with usb and battery

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thats the first of its kind

silver crest Mar 19, 2025, 2:53 PM

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Mine keeps up on 5w with a 2000milp hour battery

olive basin Mar 19, 2025, 6:27 PM

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It all depends on mesh activity id say

blissful inlet Mar 20, 2025, 10:17 AM

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meager spruce Am I mistaken, or does <@1350868183145381888>'s issue sound exactly like the iss...

It does sound similar. However this is happening with fully charged batteries @ 4.3V. It's reading the same voltage on the Promicro RAW pin. I think it may be the Promicro, as the documentation says the RAW voltage should be at least 1V higher than the board selected (3.3V or 5V boards).

gilded cedar Mar 20, 2025, 2:27 PM

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@blissful inlet what firmware ? There was a firmware that corrupted lfs..

blissful inlet Mar 20, 2025, 5:03 PM

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gilded cedar <@1350868183145381888> what firmware ? There was a firmware that corrupted lfs..

I'm running 2.6.1 now. Good point, let me check the open issues. I did notice that the erase2.uf2 doesn't clear some of the LFS options, so it shows that the LFS is not completely wiped out.

meager spruce Mar 20, 2025, 6:37 PM

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blissful inlet I'm running 2.6.1 now. Good point, let me check the open issues. I did notice ...

Does the wipe process show that it completes when you have the serial monitor open and press a button?

blissful inlet Mar 20, 2025, 6:41 PM

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meager spruce Does the wipe process show that it completes when you have the serial monitor op...

Yes it does. Everything looks like it executed. I even tried the boot loader specific wipe uf2 file.

meager spruce Mar 20, 2025, 6:43 PM

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Hmmmmmm... I don't want to bug him, but I'm curious what Mark has to say about that...

blissful inlet Mar 20, 2025, 6:44 PM

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meager spruce Hmmmmmm... I don't want to bug him, but I'm curious what Mark has to say about t...

and the issue is that you don't know it didn't wipe it all until you install the new firmware. Last time the node list was still there and I noticed that the TX power was still set to the number I had set (vs. defaulting to 30)

olive basin Mar 20, 2025, 6:44 PM

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Intresting

blissful inlet Mar 20, 2025, 6:45 PM

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olive basin Intresting

P.S. I don't think it's your board 😆 . I can take this to another channel...

olive basin Mar 20, 2025, 6:46 PM

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No no its fine :)

blissful inlet Mar 20, 2025, 7:10 PM

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what version bootloader is everyone running 6.X or 7X? I know mine has 6.X installed. May sound like a silly question, but the docs just say "depending on the device". The other reason I'm asking, is because the erase2.uf2 seems to only reference 7.X in the repo.

gilded cedar Mar 20, 2025, 7:15 PM

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blissful inlet I'm running 2.6.1 now. Good point, let me check the open issues. I did notice ...

I think it was only pre-2.5.20.. Not sure if it's in 2.6.x

olive basin Mar 20, 2025, 7:19 PM

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blissful inlet what version bootloader is everyone running 6.X or 7X? I know mine has 6.X inst...

Usually its 6.x

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7.x requires custom built firmware

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Iirc

heady mulch Mar 20, 2025, 7:21 PM

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blissful inlet what version bootloader is everyone running 6.X or 7X? I know mine has 6.X inst...

Pro-micro uses the 6.x softdevice bootloader

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It's device dependant.

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They're sometimes different because of reasons

blissful inlet Mar 20, 2025, 7:28 PM

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It's 6.1.1 Maybe I'll just reflash the bootloader, just to eliminate that.

heady mulch Mar 20, 2025, 7:41 PM

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blissful inlet It's 6.1.1 Maybe I'll just reflash the bootloader, just to eliminate that.

What bootloader version are you on now, out of interest?

gilded cedar Mar 20, 2025, 11:33 PM

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How are you guys updating you boards ?

heady mulch Mar 21, 2025, 12:14 AM

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Reset twice, dragndrop

heady mulch Mar 21, 2025, 12:16 AM

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gilded cedar How are you guys updating you boards ?

If it's not the first time you're flashing it, you can use the 1200bps reset function on the flasher

gilded cedar Mar 21, 2025, 12:33 AM

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heady mulch If it's not the first time you're flashing it, you can use the 1200bps reset fun...

Is there an OTA option ? I've tried DFU android app, but it never seems to work..

heady mulch Mar 21, 2025, 12:36 AM

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There is, but if you can get direct access why not drag and drop from your phone?

gilded cedar Mar 21, 2025, 12:39 AM

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prep and testing for deployments..

heady mulch Mar 21, 2025, 12:39 AM

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Long long usbee

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Yes, you can remote the fw update

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Not sure how tho

gilded cedar Mar 21, 2025, 12:40 AM

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LOL

blissful inlet Mar 21, 2025, 1:21 PM

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heady mulch What bootloader version are you on now, out of interest?

I reflashed 6.1.1. yesterday. No change with the issue. I think it's the Pro Micro. The voltage never dropped below 4.29V while on battery, but yet the NodeDB is not being updated. It's a very interesting problem. A new Node comes in and must be cached, but when it tries to update the NodeDB is fails and the node then disappears from the screen. This does not occur when plugged into the USB-C.

olive basin Mar 21, 2025, 1:26 PM

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First time hearing about this in general, i think ur the first one mention atleast of this issue 😅

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Probably not common on promicros but who knows

heady mulch Mar 21, 2025, 1:30 PM

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blissful inlet I reflashed 6.1.1. yesterday. No change with the issue. I think it's the Pro M...

I was meaning the version of the bootloader, rather than the soft device, as in which release here:
https://github.com/adafruit/Adafruit_nRF52_Bootloader/releases

GitHub

Releases · adafruit/Adafruit_nRF52_Bootloader

USB-enabled bootloaders for the nRF52 BLE SoC chips - adafruit/Adafruit_nRF52_Bootloader

olive basin Mar 21, 2025, 1:33 PM

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I use meshtastic generic bootloader 😅
https://github.com/meshtastic/firmware/tree/master/bin%2Fgeneric

GitHub

firmware/bin/generic at master · meshtastic/firmware

This repository contains the official firmware for Meshtastic, an open-source, off-grid mesh communication system. - meshtastic/firmware

olive basin Mar 24, 2025, 7:00 AM

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fuuuu... i realised i made a small mistake 😅 is there anyway to get a smaller inductor that works?

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should be 68uH

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and i somehow had 10uH on it 😅

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and ummm ye

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soooo...

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either i make it longer or figure it out lol

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hmm

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seengreat has 10uH inductor

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meager spruce Mar 24, 2025, 9:49 PM

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olive basin should be 68uH

How far back does the "oops" go? Like the inductors I have on mine are incorrect? (All 0.3.1 and earlier)

olive basin Mar 25, 2025, 3:31 AM

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meager spruce How far back does the "oops" go? Like the inductors I have on mine are incorrect...

Naah, that's for cn3791 😅

meager spruce Mar 25, 2025, 3:57 AM

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olive basin Naah, that's for cn3791 😅

ah ok

north wing Mar 25, 2025, 5:10 PM

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olive basin fuuuu... i realised i made a small mistake 😅 is there anyway to get a smaller ...

does this mean that the current release doesn't work?

olive basin Mar 25, 2025, 5:11 PM

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U can't even order it 🤣🤣🤣 jlcpcb doesn't have a inductor for the size i had 😅

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I'll have to fix it

olive basin Mar 26, 2025, 3:17 PM

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argh

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i hate this

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id rather not redo everything

silver crest Mar 26, 2025, 4:00 PM

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Thats annoying

olive basin Mar 26, 2025, 4:06 PM

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Yeeeeee

olive basin Mar 26, 2025, 6:03 PM

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Ooooo i think i know how to fix this

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Gonna be easy fix tomorrow

heady mulch Mar 26, 2025, 6:46 PM

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Copy paste each item onto the old footprint?

olive basin Mar 26, 2025, 6:54 PM

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Even easier 😅

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Just gotta hit the same button in the pcb view

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Reset component ids in schematic view and pcb and apparently that syncs them again

heady mulch Mar 26, 2025, 7:58 PM

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Ah, that's what's occurring. Okay

olive basin Mar 26, 2025, 8:32 PM

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Yeee 😅

olive basin Mar 27, 2025, 4:44 AM

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fixed

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phew

gilded cedar Mar 27, 2025, 4:54 AM

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Peew peew...

olive basin Mar 27, 2025, 4:55 AM

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now i need to figure out the inductor 😅

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guess i have to make this longer 😅

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there

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just had to move stuff and now i gott wire them again xd

olive basin Mar 27, 2025, 5:23 AM

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there, i think its now done

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just gotta see if all parts are available lol

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tho i wonder if i should change the boost ic to more powerfull one

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might do that

olive basin Mar 27, 2025, 6:27 AM

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#

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might remove the groove and change it to a smaller connecter and put it on the top

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@meager spruce was it u who said to use qwiic?

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what connector is it in lcsc or somehere 🤣

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nvm

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found it

meager spruce Mar 27, 2025, 6:39 AM

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olive basin <@669119352070602752> was it u who said to use qwiic?

Indeed it was. I think it's the JST SH connector

olive basin Mar 27, 2025, 6:39 AM

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SM04B-SRSS-TB 🙃

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there, had space for 2 😅

olive basin Mar 27, 2025, 7:11 AM

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dgkfj solkfdjoglkdjgkdsj

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managed to replace everything else expect this one inductor

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its for cn3791

olive basin Mar 27, 2025, 7:30 AM

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hm

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im supprised this isnt more expensive than the v0.3.3

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its actually cheaper somehow 😅

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tho its missing the inductors

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hmm

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might actually be about the same 😅

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oh

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global standard cannot be used for orders above $150 😅

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fedex international is cheapest without tax but dhl express priority is with tax

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so yeeee....

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tho need to figure the inductor situation now

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🤷‍♀️

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🤣 🤣 🤣 🤣 🤣 🤣 🤣

heady mulch Mar 27, 2025, 8:49 AM

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olive basin there, had space for 2 😅

You wanna make sure all your silkscreen is clear and consistent?

olive basin Mar 27, 2025, 8:50 AM

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hmm?

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i just need an inductor lol

heady mulch Mar 27, 2025, 8:52 AM

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I mean, make sure the silkscreen is all the same way up (or at least same 2 ways), and not tucked under each other.

olive basin Mar 27, 2025, 9:03 AM

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Aaa gotcha

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Ye, how?

heady mulch Mar 27, 2025, 9:09 AM

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Click them, rotate them, make them all the same size

tidal dust Mar 27, 2025, 9:41 AM

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Hmm, trying to order bom for 0.3.3 on lcsc but I get some friendly reminder. Should I go with 0.3.5 or order somewhere else or I just messed up?

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Never done this before

olive basin Mar 27, 2025, 9:45 AM

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what does it say on 3.3?

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@tidal dust

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3.5 i gotta update it so i don't recommend getting it

tidal dust Mar 27, 2025, 11:09 AM

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using BOM_1W-meshtastic-node_0.3.3_connectors.csv

olive basin Mar 27, 2025, 11:10 AM

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ooooooo

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sooo u gonna assemble it ur self?

tidal dust Mar 27, 2025, 11:11 AM

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Yeah, I thought so

olive basin Mar 27, 2025, 11:11 AM

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there are quite small componets but i'm not stopping u :)

tidal dust Mar 27, 2025, 11:12 AM

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So I should rather let them solder it for me?

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I wanted to learn electronics soldering

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But that may be too hard it seems

olive basin Mar 27, 2025, 11:13 AM

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if this is ur first time i would suggest that, its easier to solder with hot plate tho :)

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but ye let jlcpcb assembled it. u will need to add the promicro urself so u get some practise :)

tidal dust Mar 27, 2025, 11:14 AM

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I

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I had soldered headers before so at least should manage it with promicro

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I'll see if I manage to upload files for assembly at jlcpcb right. Should it just work?

olive basin Mar 27, 2025, 11:15 AM

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https://cart.jlcpcb.com/quote go here and add the gerbrer, choose color if u want a different one and then tick pcb assembly

PCB Prototype & PCB Fabrication Manufacturer - JLCPCB

Instant online PCB quote, get PCBs for only $2. Check design with the online gerber viewer, Easy and quick PCB Price Calculator from JLCPCB

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if u need more help just ask :)

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im here if u need it

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i can even hop on a call and show if u want :)

tidal dust Mar 27, 2025, 11:25 AM

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Thanks! I'll try to figure it out in the evening to I'll come back if I have some troubles

olive basin Mar 27, 2025, 3:14 PM

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@viral pier whats the status on the boards?

meager spruce Mar 28, 2025, 12:45 AM

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tidal dust I wanted to learn electronics soldering

While I commend and encourage you to do so, I wouldn't recommend the Washtastic as your first go at it. To @olive basin's point, probably best to go PCBA on this one.

viral pier Mar 28, 2025, 10:07 AM

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olive basin <@455813137929732106> whats the status on the boards?

Got my boards, visual inspection was good, was able to power one on but don't see any life from the nRF52. Need to verify whether the clock is running. (Had to manually install the 32MHz crystal because JLC were out of stock.) I'm assuming there should be some minimal bootloader present...? If not, I don't know how I would install one.

olive basin Mar 28, 2025, 10:07 AM

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there might not be a bootloader at all

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hold on

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https://github.com/gargomoma/fakeTec_pcb?tab=readme-ov-file#my-promicro-is-dead-what-can-i-do

GitHub

GitHub - gargomoma/fakeTec_pcb: A low-cost nrf52 device.

A low-cost nrf52 device. Contribute to gargomoma/fakeTec_pcb development by creating an account on GitHub.

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#1194757507013427250 message

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thats the firmware u need for the esp32

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i had to do this on my few promicros

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just hook up the esp32 to these pads

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u dont need any glitching

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tho one good thing is that nothing exploded 🤣

viral pier Mar 28, 2025, 10:14 AM

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olive basin there might not be a bootloader at all

Thanks, I will look into that once I confirm the clock is actually running.

olive basin Mar 28, 2025, 10:15 AM

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alr

heady mulch Mar 28, 2025, 10:16 AM

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viral pier Thanks, I will look into that once I confirm the clock is actually running.

Have you got facilities for checking how the clock is performing?

viral pier Mar 28, 2025, 10:18 AM

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olive basin tho one good thing is that nothing exploded 🤣

Yeah, I applied power very gently using my bench supply (current limited, etc.), hoping not to release the 'magic smoke'. 🙂

olive basin Mar 28, 2025, 10:18 AM

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good call xd

viral pier Mar 28, 2025, 10:19 AM

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heady mulch Have you got facilities for checking how the clock is performing?

Just a cheap handheld oscilloscope. At least I should be able to see that it IS running.

heady mulch Mar 28, 2025, 10:20 AM

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Good enough for me!

olive basin Mar 28, 2025, 1:15 PM

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@viral pier i can walk u through flashing the bootloader tomorrow if u need help

north wing Mar 28, 2025, 2:22 PM

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@olive basin I think that I might be asking a stupid question but what is supposed to be the part number for C9 (I really don't want to mess it up by ordering the wrong capacitor)

olive basin Mar 28, 2025, 2:34 PM

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north wing <@342662708795146242> I think that I might be asking a stupid question but what...

Whats the name in the bom on it?

north wing Mar 28, 2025, 2:41 PM

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olive basin Whats the name in the bom on it?

CAP-D5.0XH5.5

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10u

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those are the only things listed for C9

olive basin Mar 28, 2025, 2:57 PM

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Hold on

olive basin Mar 28, 2025, 3:11 PM

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north wing CAP-D5.0XH5.5

C402529
I hope its the correct one 😅

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Ill have to add that to the bom xd

viral pier Mar 29, 2025, 1:14 AM

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olive basin <@455813137929732106> i can walk u through flashing the bootloader tomorrow if ...

Damn those are some hella tiny pads! Might consider trying to make them a bit bigger, if you can, since we pretty much know every builder will need to use them.

viral pier Mar 29, 2025, 2:02 AM

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olive basin <@455813137929732106> i can walk u through flashing the bootloader tomorrow if ...

No way I can connect any wires to those pads. I think I had a couple connected at one point, but they didn't survive long enough to do the others. Now the pads have torn away so there is nothing to connect to anymore. 😕

olive basin Mar 29, 2025, 5:27 AM

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Shit, ill have to make em bigger

olive basin Mar 29, 2025, 7:04 PM

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there 😅

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1mmx1mm

remote jungle Mar 29, 2025, 7:49 PM

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there are already pads on the bacn, these could be there, right? then they can be bigger, less easy to tear off

olive basin Mar 29, 2025, 7:52 PM

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V0.3.3 has em on the back

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v0.4 has through hole 😅

viral pier Mar 29, 2025, 8:11 PM

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olive basin there 😅

Looks good, thanks! 🙂

olive basin Mar 29, 2025, 8:16 PM

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ye, you're welcome 😅

remote jungle Apr 7, 2025, 4:33 PM

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@olive basin I'm trying to order 0.3.5, but see some strangeness:

C10 overlaps with Q5
U10 is rotated

olive basin Apr 7, 2025, 4:34 PM

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remote jungle <@342662708795146242> I'm trying to order 0.3.5, but see some strangeness: - C1...

U10 u can rotate Manually but ill have to fix c10 tomorrow

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Thx for letting me know

remote jungle Apr 7, 2025, 4:35 PM

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olive basin Ill have to add that to the bom xd

I also ran into the CAP-D5.0XH5.5 issue, but that was expected I think

olive basin Apr 7, 2025, 4:35 PM

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Ill have a code for that too 😅

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I think i might have updated but didn't upload

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Jlc might even fix u10 themselves 😅

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Its rotated correctly in easyeda

olive basin Apr 8, 2025, 4:43 PM

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Shit i forgot

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Ill do it tomorrow I promise

olive basin Apr 9, 2025, 7:32 AM

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@remote jungle should be done

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tho i will redesing the whole solar system 😅

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but not sure when

remote jungle Apr 9, 2025, 7:40 AM

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what will you change/why?

heady mulch Apr 9, 2025, 8:41 AM

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Make Pluto a planet again

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And Ceres

olive basin Apr 9, 2025, 8:58 AM

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remote jungle what will you change/why?

the layout 😅 it should work fine but i was informed how to make it better

remote jungle Apr 9, 2025, 10:49 AM

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better in what aspect? smaller, more efficient, cheaper, ...?

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(I'm wondering whether to order now or to wait for a bit)

olive basin Apr 9, 2025, 10:57 AM

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#1194757507013427250 message

remote jungle Apr 9, 2025, 12:56 PM

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fair, then I'll wait a bit 🙂

olive basin Apr 9, 2025, 1:00 PM

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just don't know when ill do it 😅

remote jungle Apr 9, 2025, 1:01 PM

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yeah that's fine, no time pressure from me 🙂

olive basin Apr 9, 2025, 4:52 PM

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remote jungle yeah that's fine, no time pressure from me 🙂

nvm, didnt take me long 🤣

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its done now

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shit

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hold on

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forgor to update few files 🤣

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updated 😅

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bit different layout

gilded cedar Apr 9, 2025, 5:34 PM

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@olive basin When can I put in a board design request ? 😛

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I want a carrier board for rp2040-zero board..

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With 1W radio.. LOL

olive basin Apr 9, 2025, 5:37 PM

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Ummm...... 😅

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Dm me 🤣

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Gotta agree on a price 🙃 🤣🤣🤣

olive basin Apr 9, 2025, 5:58 PM

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@gilded cedar

proud cargo Apr 10, 2025, 5:51 PM

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olive basin bit different layout

Is "and inductor" a joke or a typo?

olive basin Apr 10, 2025, 5:54 PM

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proud cargo Is "and inductor" a joke or a typo?

Oops 🤣

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Typo 😅

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Good catch xd

proud cargo Apr 10, 2025, 5:54 PM

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It's on a bunch, so I thought maybe it was a joke I didn't get

blissful inlet Apr 12, 2025, 2:58 AM

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I hope someone can help me out... So I posted about this crazy issue a couple of weeks ago about the washtastic board 0.3.1 where the NodeDB was flaking out. Lucky me I have two boards like that and maybe one more (but running on USB+Batt). I think the issue is that promicro is not getting enough power when running on battery alone esp during transmit operations. It simply reboots when that happens which is of course a problem. I'm running 5 x 18650's in parallel, so it should have enough amps. Anyone have any thoughts on how to get more power to the promicro?

olive basin Apr 12, 2025, 3:49 AM

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blissful inlet I hope someone can help me out... So I posted about this crazy issue a couple of...

the promicro is hooked directly to the battery and theres no regulator there

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so it should work

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might add a decoupking cap on the new version to try to mitigate this if its the 5V boost

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tho i did change it on V0.3.5

olive basin Apr 12, 2025, 11:30 AM

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we now have V0.3.5.3 😅

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with 9 mosfets 🙃

blissful inlet Apr 12, 2025, 12:03 PM

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olive basin tho i did change it on V0.3.5

Thanks! Maybe I should start with where I want to end up. I'm trying to make a 6W solar node w/ 5x18650 batteries, running the full 1W output, and as mentioned I have the 0.3.1 board. Currently, I have the charge boost on the promicro jumped. I also the solar boost is jumped. I think this is the board with the battery protection problem (U3) . For my purpose, which pads should be jumped? if anyone fixed the U3 problem, can someone share a pic on how they fixed it?

olive basin Apr 12, 2025, 12:07 PM

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the only way to fix U3 is to take it first out and do what the image shows

blissful inlet Apr 12, 2025, 12:09 PM

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olive basin the only way to fix U3 is to take it first out and do what the image shows

Thanks! I'll give cutting the traces a try.

olive basin Apr 12, 2025, 12:09 PM

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u just have to first remove it from the board

blissful inlet Apr 12, 2025, 12:10 PM

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Any thoughts on the jumpers?

olive basin Apr 12, 2025, 12:10 PM

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what jumpers?

blissful inlet Apr 12, 2025, 12:11 PM

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the promicro charge boost jumper and the solar boost jumper

olive basin Apr 12, 2025, 12:11 PM

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ah yes, u get max 1A of charge with the solar boost

blissful inlet Apr 12, 2025, 12:53 PM

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I removed the batt charge boost jumper from the bottom of the promicro near the RST & VCC pins (the two small pads) and my rebooting/nodeDb problems seem to be fixed when running from battery now.

olive basin Apr 12, 2025, 12:56 PM

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Intresting

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Well that's good

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Probably will need to add a note to GitHub

remote jungle Apr 12, 2025, 1:50 PM

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olive basin with 9 mosfets 🙃

why the mosfets?

olive basin Apr 12, 2025, 1:50 PM

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well 2 for reverse polarity

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1 for the power switch

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4 for cn3791

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and the last 2 for gps toggle

blissful inlet Apr 12, 2025, 2:51 PM

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olive basin the only way to fix U3 is to take it first out and do what the image shows

Does the via have to be disconnected from ground? I don't want to assume 🙂

olive basin Apr 12, 2025, 2:52 PM

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blissful inlet Does the via have to be disconnected from ground? I don't want to assume 🙂

yes if its there

blissful inlet Apr 12, 2025, 2:53 PM

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olive basin yes if its there

Thanks

olive basin Apr 13, 2025, 9:58 AM

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was asked if i could add bme280 so i did

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i saved few bucks and now it went up by few 🤣

heady mulch Apr 13, 2025, 10:40 AM

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Bme280 is expensive

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Bmp280 plus aht20

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Cheaper 😄

olive basin Apr 13, 2025, 10:41 AM

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cheaper?????

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bme280 is $3

heady mulch Apr 13, 2025, 10:41 AM

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Is it?

olive basin Apr 13, 2025, 10:41 AM

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yes

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bme680 is expensive

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heady mulch Apr 13, 2025, 10:44 AM

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Which one is which?

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I got mixed up

olive basin Apr 13, 2025, 10:44 AM

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bme680 has gas resistance

heady mulch Apr 13, 2025, 10:44 AM

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One is temperature, humidity and pressure, and one also has the air quality thingie

olive basin Apr 13, 2025, 10:44 AM

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bme280 only has temp, humidity and pressure

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oh ye, bme280 adds extra cost 😅

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oh well

olive basin Apr 13, 2025, 11:17 AM

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ofc adding the bme made the pcb go from 25€ per board to 35€ plus promicro thats 40€ 😅

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without bme 💀

heady mulch Apr 13, 2025, 12:02 PM

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olive basin ofc adding the bme made the pcb go from 25€ per board to 35€ plus promicro thats...

$3 loading fee plus $3.5 cost?

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What else? Special treatment?

olive basin Apr 13, 2025, 12:02 PM

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standard pcba

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dont think theres nothing else

heady mulch Apr 13, 2025, 12:10 PM

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9$ in re-reeling parts and 27$ in BOM cost?

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Oh, for 10 boards

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$3.6 per board

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Makes sense now

olive basin Apr 13, 2025, 12:15 PM

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yeee 10

north wing Apr 13, 2025, 3:19 PM

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Is this going to be listed on the github as a different version or is 3.5.3 just going to be more expensive now ?

olive basin Apr 13, 2025, 3:23 PM

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its just 3.5.3. if u don't want it u can just say don't place when asked to change to standard pcba

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or i could make a different bom for it

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i made 2 new boms with BME280

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@north wing

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ill add few notes about price

swift furnace Apr 13, 2025, 3:49 PM

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olive basin was asked if i could add bme280 so i did

BME280 is staying unpopulated on mine most likely 😂

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I ordered one from mouser

olive basin Apr 13, 2025, 3:50 PM

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same on mine 🤣 if i want ill just solder it myself lol

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maybe ill actually order some lol

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i can save the $25 setup fee 🤣

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damm u mouser, making me get more for free shipping eh?

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i can use it on lcsc for the bmes lol

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maybe ill just leave em unpopulated for now

proud cargo Apr 13, 2025, 5:02 PM

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Anybody making these available for purchase somewhere, or do I need to figure out PCBWay if I want one?

olive basin Apr 13, 2025, 5:02 PM

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proud cargo Anybody making these available for purchase somewhere, or do I need to figure ou...

Not at the moment but there are plans 😅 and i recommend jlcpcb, it's cheaper

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I mean i will be ordering 10 of these next week.
Where do u live?

proud cargo Apr 13, 2025, 5:03 PM

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Seattle area

olive basin Apr 13, 2025, 5:03 PM

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Usa?

proud cargo Apr 13, 2025, 5:03 PM

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Ya

olive basin Apr 13, 2025, 5:04 PM

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Dangit

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I'm in the eu 😅

proud cargo Apr 13, 2025, 5:04 PM

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I'm jealous of that for the next... 3.5 years.

olive basin Apr 13, 2025, 5:04 PM

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Fair

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@alpine epoch u would have alot of buyers 🤣

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If u were selling 😉

gilded cedar Apr 13, 2025, 5:34 PM

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What is the latest revision that has been purchased ?

olive basin Apr 13, 2025, 5:43 PM

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Ummm.......

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0.3.5 is not tested as far as i know

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I will be ordering tho

alpine epoch Apr 13, 2025, 8:49 PM

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olive basin <@326961580677922827> u would have alot of buyers 🤣

is it on the flasher yet?

heady mulch Apr 13, 2025, 9:04 PM

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alpine epoch is it on the flasher yet?

Pro-micro DIY? It's been on for a while...

alpine epoch Apr 13, 2025, 9:05 PM

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heady mulch Pro-micro DIY? It's been on for a while...

oh yeah, I haven't been keeping up with the the Washtastic much

olive basin Apr 13, 2025, 10:34 PM

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Yes it is

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Promicro diy haha

meager spruce Apr 14, 2025, 3:11 PM

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@olive basin - finally got around to deploying a Washtastic (v0.3.0) with @unreal valley's suggested setup including the 2S LTO. Will let you know how it preforms.
The other 2P node has been doing fine, no apparent brownouts or random reboots, however I don't send much from it. But the few times that I did, nothing bad happened lol.

olive basin Apr 14, 2025, 3:11 PM

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awesome

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its funny that i have yet to deploy one 🤣

olive basin Apr 15, 2025, 1:55 PM

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10 pcbs ordered 😅

swift furnace Apr 15, 2025, 1:56 PM

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🎉

olive basin Apr 15, 2025, 1:56 PM

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costing me whopping 245.76€ 😅

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i saved 8.82€ 🤣

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remote jungle Apr 15, 2025, 2:27 PM

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olive basin 10 pcbs ordered 😅

what version?

olive basin Apr 15, 2025, 2:28 PM

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0.3.5

remote jungle Apr 15, 2025, 2:28 PM

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good to hear, curious as to the performance of the new solar IC

olive basin Apr 15, 2025, 2:30 PM

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391€ spent today 😅

lime ledge Apr 15, 2025, 3:25 PM

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olive basin Apr 15, 2025, 3:26 PM

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Pretty much if i don't get more money 🤣

lime ledge Apr 15, 2025, 3:28 PM

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just flash a bunch of t-decks with pre-release MUI and sell them. EZ

olive basin Apr 15, 2025, 3:29 PM

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Well ill get some money off these boards 😅

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Will sell em for 50€

lime ledge Apr 15, 2025, 3:29 PM

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noice.

olive basin Apr 15, 2025, 3:29 PM

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25€ per board plus promicro

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Ofc won't sell all xd

lime ledge Apr 15, 2025, 3:30 PM

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of course. gotta keep some toys for yourself

olive basin Apr 15, 2025, 3:31 PM

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Mhm

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Tho i need to do stuff to get money 😅

lime ledge Apr 15, 2025, 3:40 PM

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tru

olive basin Apr 15, 2025, 3:43 PM

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Only if didn't need to do anything 😅

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Will probably need to talk to some manufacturers at somepoint if i need to mass produce these 😅

heady mulch Apr 15, 2025, 4:14 PM

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olive basin Tho i need to do stuff to get money 😅

I thought you had your own line of trading cards?

olive basin Apr 15, 2025, 4:14 PM

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Wut?

heady mulch Apr 15, 2025, 4:19 PM

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#random message

olive basin Apr 15, 2025, 4:20 PM

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oh that 😅

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nah, its not a trading card

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even if it was nobody would not get it

heady mulch Apr 15, 2025, 4:23 PM

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olive basin Will sell em for 50€

That's too cheap

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If all the bugs are sorted.

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I'd increase the price.

olive basin Apr 15, 2025, 4:24 PM

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i sold the last one for 30 iirc 😅

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so its already 20€ encrese

heady mulch Apr 15, 2025, 4:24 PM

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If the bpc works now, and the solar charger, then price it more.

olive basin Apr 15, 2025, 4:24 PM

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i do hope everything works

heady mulch Apr 15, 2025, 4:24 PM

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I do to

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But you've made more improvements

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You've got a solar charger equivalent to the seengreat or the waveshare (I think), plus the BPC that everyone likes, plus a 30db radio.

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That's a lot, and would cost a lot separately

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But this is in a convenient package

olive basin Apr 15, 2025, 4:26 PM

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70€?

heady mulch Apr 15, 2025, 4:27 PM

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Sounds about right.

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Remember there's some serious soldering going in there.

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Plus engineering time.

olive basin Apr 15, 2025, 4:28 PM

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tho i will sell this batch at 50€ as i promised to few at that price :) and i will prob have them as a customer in the future xd

olive basin Apr 15, 2025, 4:28 PM

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heady mulch Plus engineering time.

fair

heady mulch Apr 15, 2025, 4:29 PM

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olive basin tho i will sell this batch at 50€ as i promised to few at that price :) and i wi...

That's fair, but you're also giving out the Gerbers and BOM, so if people want to self-select out then that's an option too.

olive basin Apr 15, 2025, 4:29 PM

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fair

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i do also have a donation button in github 🙃

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tho nobody has yet to doate 🤣

olive basin Apr 16, 2025, 9:48 AM

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somebody pls donate 🙏 🤣

swift furnace Apr 16, 2025, 9:52 AM

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https://tenor.com/view/broke-poor-money-wallet-empty-gif-7985382

Tenor

olive basin Apr 16, 2025, 9:52 AM

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i feel u xd

blissful inlet Apr 16, 2025, 12:48 PM

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For anyone using the 0.3.1 version, I previously stated that the rebooting during transmit may be caused by the ProMicro's Charge boost being bridged, I no longer think that is the problem. I continue to have the issue. This is on multiple boards running full 30dBm(setting = 22dBm) in client mode on batteries. I did completely remove the E22 and the ProMicro from a board and just did a direct wire with a 5V external power supply and I've not experienced any reboots during transmit with these two components. The 5V is being supplied by a USB 1A charger to the RAW PM pin and the E22. This seems similar to the Issue that @viral pier raised on Github https://github.com/valzzu/meshtastic-pcbs/issues/7#issuecomment-2640495869.

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P.S. I used an antenna with 1.3 SWR, just to confirm it's not related to reflective power or something silly that is causing a excessive load during transmit. Per the docs, the E22 may consume up to 650mA.

olive basin Apr 16, 2025, 12:56 PM

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If it's rly the 5V boost converter then I hope its fixed on the new version

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Still I'm suprised i haven't had that issue

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Nor have i seen many reports

blissful inlet Apr 16, 2025, 1:57 PM

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I think it gets better when I reduce the power, but in rural America I generally need all that I can get 🙂

olive basin Apr 17, 2025, 5:52 AM

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pcbs are soon done

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then comes assembly

swift furnace Apr 17, 2025, 7:33 AM

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pog

olive basin Apr 17, 2025, 7:37 AM

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we just pray everything works

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wish i could measure EMI 😅

olive basin Apr 17, 2025, 4:31 PM

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Holy shit somebody actually donated $25 🙃

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Thx who ever that was

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:)

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2 days ago 😅

silver crest Apr 17, 2025, 4:51 PM

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Nice!

swift furnace Apr 17, 2025, 4:56 PM

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olive basin wish i could measure EMI 😅

U got an SDR?

olive basin Apr 17, 2025, 4:56 PM

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I indeed do have an sdr

swift furnace Apr 17, 2025, 5:40 PM

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Then ur good

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Just make a loop

olive basin Apr 17, 2025, 6:48 PM

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swift furnace Just make a loop

Hm?

swift furnace Apr 17, 2025, 6:54 PM

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#

https://hackaday.com/2016/11/22/build-your-own-emi-probes/ these are probably fine

Hackaday

Al Williams

Build Your Own EMI Probes

[Gerald Musy] wanted to investigate the source of electromagnetic interference (EMI) in his switching power supply design. Stymied by the high cost of EMI probes, he decided to build his own. Lucky…

olive basin Apr 17, 2025, 7:05 PM

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Hmmm

swift furnace Apr 17, 2025, 7:21 PM

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An SDR is just an uncalibrated signal analyser thinking

olive basin Apr 18, 2025, 4:01 AM

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They are done

olive basin Apr 18, 2025, 4:27 AM

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Then we wait

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Maybe I'll have them next time I'm home :)

olive basin Apr 18, 2025, 4:01 PM

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arigatou @alpine epoch :)

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thast total of $50 now

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:)

alpine epoch Apr 18, 2025, 4:02 PM

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olive basin arigatou <@326961580677922827> :)

let me know how the boards perform

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I'll get around to eventually order some

olive basin Apr 18, 2025, 4:02 PM

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alr, will do when i get em :)

alpine epoch Apr 18, 2025, 4:03 PM

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for now I've been dragged into another big project that has consumed me

olive basin Apr 18, 2025, 4:03 PM

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dang

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well good luck

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might have the boards next week

heady mulch Apr 18, 2025, 5:33 PM

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alpine epoch for now I've been dragged into another big project that has consumed me

Harukeyboard wen?

alpine epoch Apr 18, 2025, 5:36 PM

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heady mulch Harukeyboard wen?

after HarukiUI XD

olive basin Apr 18, 2025, 5:48 PM

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🤣

swift furnace Apr 18, 2025, 7:27 PM

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Can I reserve an order for one, iris

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They seem to be in demand I want to make sure I get one before they go 🤣🤣

olive basin Apr 18, 2025, 7:29 PM

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if ur willing to pay the ridiculous shipping from finland sure

olive basin Apr 19, 2025, 5:40 AM

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Boards have been shipped

pliant kiln Apr 19, 2025, 11:50 AM

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blissful inlet For anyone using the 0.3.1 version, I previously stated that the rebooting durin...

Hey Blue - I also encounter hard to reproduce issues with the 3.1 board. With fully charged battery the node was dead and simply a quick power cycle got it back to normal operation. I called the node 'patient 0' (and replaced it) and trying to find out whats going on. Here in rural Australia (or this is the nations capital) we need every milliwatt to have coverage in the wilderness.

olive basin Apr 19, 2025, 11:57 AM

#

i wonder what the cause could be

#

if id have to guess it might be the 5v boost but 🤷‍♀️

#

but that should not affect the promicro at all

olive basin Apr 19, 2025, 3:23 PM

#

Idk but i was thinking of maybe making a version of WashTastic that has the solar part separated, it would be like an addon.

#

Since if i want to have lto support for example I'd have make a new one anyway and its min input is 7V

#

Not 5V

gilded cedar Apr 19, 2025, 3:23 PM

#

I haven't used the solar part since getting my 2 boards..

olive basin Apr 19, 2025, 3:23 PM

#

olive basin Not 5V

And that is kinda big issue probably for some

olive basin Apr 19, 2025, 3:24 PM

#

gilded cedar I haven't used the solar part since getting my 2 boards..

That would also mean i could for example have a module to just supply power no charging stuff precent

#

But idk

#

😅

#

Mainly making this for myself so 🤷‍♀️

gilded cedar Apr 19, 2025, 3:26 PM

#

If you want it, then go for it..

olive basin Apr 19, 2025, 3:31 PM

#

Ill have to explore maybe or I'll just make another version 🤣🤣🤣🤣

olive basin Apr 20, 2025, 5:20 PM

#

package in germany :)

true garden Apr 21, 2025, 7:30 PM

#

gilded cedar Apr 21, 2025, 10:50 PM

#

That's a sexy looking board..

#

Is this the first purchase of 0.3.5.3 board version ?

olive basin Apr 21, 2025, 10:53 PM

#

I think we ordered at the same time 😅

#

But mines not here yet

#

Tho I didn't add the bme cuz it would have costed bit too much

gilded cedar Apr 21, 2025, 10:55 PM

#

Note to self.. PLA enclosures left in a vehicle melt... That is all..

olive basin Apr 21, 2025, 10:55 PM

#

No shit 🤣🤣

gilded cedar Apr 21, 2025, 10:56 PM

#

I guess I need to print a new one in PETG now.. But ABS might be smarter..

alpine epoch Apr 22, 2025, 12:01 AM

#

olive basin Tho I didn't add the bme cuz it would have costed bit too much

good call not having it installed lol

#

bme directly onto the board will only give you the temperature of the board inside whatever case you put it on.

#

unless that's what you want

heady mulch Apr 22, 2025, 12:10 AM

#

alpine epoch bme directly onto the board will only give you the temperature of the board insi...

At this point its just an expensive fire/flood sensor

#

Which is a surprisingly common request...

alpine epoch Apr 22, 2025, 12:13 AM

#

heady mulch Which is a surprisingly common request...

that is true, you never know you need it till you need it XD

heady mulch Apr 22, 2025, 12:14 AM

#

A float switch might actually be more expensive, too.

#

aka boolean humidity sensor

true garden Apr 22, 2025, 1:45 AM

#

gilded cedar I guess I need to print a new one in PETG now.. But ABS might be smarter..

petg is just as bad especially if you are using clamping forces on it

#

i don't trust anything but abs or asa or higher in the heat

gilded cedar Apr 22, 2025, 2:01 AM

#

true garden petg is just as bad especially if you are using clamping forces on it

There are no forces other than gravity on the antenna mount.. I made a basic b!tch enclosure..

true garden Apr 22, 2025, 2:06 AM

#

but you're clamping down with a nut on the antenna mount yes ?

olive basin Apr 22, 2025, 2:40 AM

#

alpine epoch bme directly onto the board will only give you the temperature of the board insi...

That's how all my sensors are 😅

#

Expect 1

gilded cedar Apr 22, 2025, 3:03 AM

#

true garden but you're clamping down with a nut on the antenna mount yes ?

Yes, but that's not the issue. My enclosure just bowed out where the USB port is, and the opposite side where I put the antenna mount.. It's not colapsing under the pressure, it's warping the enclosure.

true garden Apr 22, 2025, 3:15 AM

#

#

Running fans here to try to keep ambient airflow to the node lol 😂

#

Printed tpu gasket

#

#

Finally found my pro micros 🤦‍♂️

#

Time to build

olive basin Apr 22, 2025, 3:43 AM

#

true garden Finally found my pro micros 🤦‍♂️

where were they?

true garden Apr 22, 2025, 3:48 AM

#

lol in a box i forgot about lol

#

done soldering and don't forget the 3 middle pins like i did 😄

#

lol

#

i had to push them through

#

ok no dead shorts about to boot

olive basin Apr 22, 2025, 3:56 AM

#

true garden done soldering and don't forget the 3 middle pins like i did 😄

i left them out on purpose on my first batch xd

true garden Apr 22, 2025, 4:34 AM

#

31 dbm

#

#

Mess lol

olive basin Apr 22, 2025, 5:17 AM

#

we have an issue 😅

#

solar charging not working, mosfets not letting anything through

#

everything else works

#

this time the 5V rail does not saf like it did last time :)

#

on 12V seemes to work

#

and outputs 5V

#

okay 5V, 6V and 9V doesent work

#

everything else does

true garden Apr 22, 2025, 5:46 AM

#

Thanks @olive basin

olive basin Apr 22, 2025, 5:46 AM

#

youre welcome :)

#

i rly want a rf meter xd

true garden Apr 22, 2025, 5:52 AM

#

The one I have is cheap

#

Holy shit

#

It’s double the price it used to be

#

https://newbeedrone.com/products/immersionrc-rf-power-meter-v2

NewBeeDrone

ImmersionRC RF Power Meter V2

ImmersionRC RF Power Meter V2 FPV is made possible thanks to two RF links, a control link, and a video link. Without an RF Power Meter, a pilot has no - NewBeeDrone

#

I used a 10dbm attenuator

#

As well

#

Since 30dbm is its max

olive basin Apr 22, 2025, 5:57 AM

#

@true garden

#

not sure how correct this is

true garden Apr 22, 2025, 6:00 AM

#

Needs a 10k ?

olive basin Apr 22, 2025, 6:01 AM

#

R15 is 10K

#

thats correct

true garden Apr 22, 2025, 6:01 AM

#

Or am I reading these wrong

olive basin Apr 22, 2025, 6:01 AM

#

these are wrong acording to chatgpt

true garden Apr 22, 2025, 6:02 AM

#

Not sure I would trust ChatGPT lol

olive basin Apr 22, 2025, 6:02 AM

#

let me ask grok lol

true garden Apr 22, 2025, 6:02 AM

#

I wouldn’t trust any ai for the most part I see it make stupid errors all the time

olive basin Apr 22, 2025, 6:03 AM

#

ye ye but it gives some info to follow 😅

true garden Apr 22, 2025, 6:03 AM

#

👍

olive basin Apr 22, 2025, 6:03 AM

#

okay says the same

#

#

prob correct 😅

#

lemme see the datahseet for the calculation xd

true garden Apr 22, 2025, 6:06 AM

#

It’s not r28 on your schematic right that’s their example ?

olive basin Apr 22, 2025, 6:07 AM

#

olive basin

this is the correct resistors

#

names

#

i mean

true garden Apr 22, 2025, 6:07 AM

#

R19 for 5v on your schematic

olive basin Apr 22, 2025, 6:07 AM

#

i know

#

but was simpler to make a simple divider xd

true garden Apr 22, 2025, 6:07 AM

#

Yeah

#

I’m just looking at how easy to replace those

#

And test

#

I have the resistors needed likely

#

So I need a 160kohm?

olive basin Apr 22, 2025, 6:09 AM

#

160K is whats there

true garden Apr 22, 2025, 6:09 AM

#

Ah

olive basin Apr 22, 2025, 6:09 AM

#

olive basin okay says the same

try these

true garden Apr 22, 2025, 6:10 AM

#

I will probably need to work on it tomorrow

#

I’m wiped to try to do that now

#

That type of soldering is no fun

#

lol

#

If you tell me the values I’ll give it a go tomorrow

olive basin Apr 22, 2025, 6:16 AM

#

ummm..... might have the resitors flipped 😅

#

might explain few thing 😅

true garden Apr 22, 2025, 6:18 AM

#

If that’s the case just silk screen ?

#

Want me to test ?

olive basin Apr 22, 2025, 6:18 AM

#

ye sure

true garden Apr 22, 2025, 6:19 AM

#

Ok it’s all setup that’s easy

olive basin Apr 22, 2025, 6:19 AM

#

tho 5V and 6V is so close to 5V 🤣

true garden Apr 22, 2025, 6:20 AM

#

Yeah I think your right

#

24v with 5 v input

#

Working

olive basin Apr 22, 2025, 6:21 AM

#

😅

#

phew

#

ill just flip the silk screen

true garden Apr 22, 2025, 6:21 AM

#

6v works

#

9v

#

24v works

#

Yeah just silk screen

olive basin Apr 22, 2025, 6:23 AM

#

all good then 😅

true garden Apr 22, 2025, 6:29 AM

#

That seems to be tolerant if it’s in the wrong setting too

#

The cn3971 or whatever ic that is

olive basin Apr 22, 2025, 6:30 AM

#

ye it works, its just the optimal voltage is what the text says

true garden Apr 22, 2025, 6:30 AM

#

I guess solid red means too low voltage

#

lol

olive basin Apr 22, 2025, 6:31 AM

#

🤷‍♀️

#

should mean charging

#

if its over the setpoint that is

#

bro cmoon

#

i just want the ground plane there

olive basin Apr 22, 2025, 10:23 AM

#

btw i fixed the silkscreen so it should be good now for who ever orders next lol

#

#

5V was 24V lol

#

etc

#

the switch

true garden Apr 22, 2025, 1:43 PM

#

i checked power draw trying to use solar only and it doesn't power with just solar not sure why but without a battery the load is .24 watt

olive basin Apr 22, 2025, 1:43 PM

#

hmmm....

true garden Apr 22, 2025, 1:43 PM

#

adding a battery with charging its like 2.64 watt load so its charging like 2.4 watt is likely charging the battery

#

when transmitting it jumped to like 6 or 7 watt

olive basin Apr 22, 2025, 1:44 PM

#

gotcha

true garden Apr 22, 2025, 1:45 PM

#

i can test without the solar and just battery input to see real load

olive basin Apr 22, 2025, 1:45 PM

#

there shouldnt be anything from stopping it supplying the power but 🤷‍♀️

true garden Apr 22, 2025, 1:45 PM

#

will need to do that later

#

i saw the nrf led light but it never booted fully or showed up in meshtastic

olive basin Apr 22, 2025, 1:46 PM

#

hmmm

true garden Apr 22, 2025, 1:46 PM

#

is it possible that maybe it causes it to boot into dfu mode because maybe the power is possibly intermittent at first?

#

i can try to look closer why later

olive basin Apr 22, 2025, 1:47 PM

#

this is literarly the path of the bat from the cn3791. the only thing in the way is the switch mosfet

#

anyway i'm happy that its working atleast 😅

true garden Apr 22, 2025, 1:51 PM

#

yeah i'm not sure why it didn't show up in meshtastic bluetooth devices strange

olive basin Apr 22, 2025, 1:51 PM

#

🤷‍♀️

#

well ill be doing some tests of my own when im home for the weekend

#

expect rf measuring 🤣

true garden Apr 22, 2025, 4:32 PM

#

olive basin expect rf measuring 🤣

i can measure RF for anything you want to see they have a 33dbm version available now ebyte although not sure how well it works or if pinout is different

olive basin Apr 22, 2025, 4:35 PM

#

Same pinout i think

heady mulch Apr 22, 2025, 4:41 PM

#

true garden i can measure RF for anything you want to see they have a 33dbm version availabl...

Same pinout, twice as much powaaaaaah

#

What would you be measuring?

true garden Apr 22, 2025, 5:18 PM

#

heady mulch What would you be measuring?

I’m guessing she wants to know if Meshtastic dbm setting is correct

#

At 30dbm it was 31dbm

#

My only negative so far it doesn’t fit in my simple solar light nodes so I can’t easily put these in those lol I have enclosures I can make though

gilded cedar Apr 22, 2025, 7:30 PM

#

true garden done soldering and don't forget the 3 middle pins like i did 😄

If I recall, those aren't connected, so they aren't needed.

true garden Apr 22, 2025, 7:31 PM

#

I put them in after

#

I didn’t look closely enough

heady mulch Apr 22, 2025, 8:39 PM

#

true garden I’m guessing she wants to know if Meshtastic dbm setting is correct

Ah, I was thinking something like this:
https://hackaday.io/project/202604-femtofox-pro-tx-power-power-consumption-testing
😁

Femtofox Pro TX Power + Power Consumption Testing

The CDEBYTE E22-900M30S LoRa gateway used in the Femtofox pro consists of 22dBm SX1262 FM Modulator IC, + a 8dBm nominal amplfiier, giving something like 30dBm TX power, theoretically... The actual TX power is highly voltage-dependent, and deviates signficantly from the values listed in the datasheet. I investigated that, and plotted the nominal...

olive basin Apr 23, 2025, 6:52 AM

#

mine have arrived 😅 shall go get em im few days

true garden Apr 24, 2025, 1:13 AM

#

make sure to test the pro micro before soldering

#

i may have one bad one and luckily i didnt' solder it

#

lol

#

already soldered 3 and all are working

gilded cedar Apr 24, 2025, 1:27 AM

#

Bad how ?

#

Some don't have a BL on them, so you have to flash that first, before you can do anything.

true garden Apr 24, 2025, 1:30 AM

#

all the others had a bootloader and showed up on usb

#

this particular one the red led was dim

#

the bl has to be updated

#

i didn't look beyond it not showing on usb and dim led but it looks like something is wrong with it

#

probably a short on a rail or bad ic or something

true garden Apr 24, 2025, 1:34 AM

#

gilded cedar Bad how ?

i tried using tweezers to reset pad to gnd twice to see if it would show

#

as well

#

anyways i'd rather not solder a ton of pins and then figure out its bad and then have to go through the misery of removing it

#

4 soldered and working

gilded cedar Apr 24, 2025, 1:36 AM

#

true garden anyways i'd rather not solder a ton of pins and then figure out its bad and then...

Totally agree! And that does sound like an issue w/ the Bootloader. You can use an ESP32 to flash the bootloader.

true garden Apr 24, 2025, 1:38 AM

#

can't i with a ftdi or st-link ?

gilded cedar Apr 24, 2025, 1:38 AM

#

st-link maybe.. I'm not 100%

#

I haven't had to do it..

#

I think Iris, and a few others have tho.

true garden Apr 24, 2025, 1:39 AM

#

stlink supposedly

#

i'm assuming those are the 3 pins near the mcu

olive basin Apr 24, 2025, 2:42 AM

#

true garden i'm assuming those are the 3 pins near the mcu

On the bottom theres 4 pads

true garden Apr 24, 2025, 3:00 AM

#

the gps pads ?

#

oh nevermind i see

#

@olive basin the dim led behavior is a symptom of bad bl ?

#

floating pin or ?

#

i've built 7 working boards they take like 5 to 10 min to do the worst part is getting the stupid kapton tape off the dip switches

#

olive basin Apr 24, 2025, 3:11 AM

#

true garden <@342662708795146242> the dim led behavior is a symptom of bad bl ?

Dim led where?

true garden Apr 24, 2025, 3:12 AM

#

olive basin Dim led where?

#1315666061416464465 message

#

the red led on the pro micro

#

the one that seems bad and not showing on usb is dim

#

anyways since i have others i haven't worried about it for the moment not a big deal if it is bad i can look at the power rails etc when needed or just try flashing it

olive basin Apr 24, 2025, 3:13 AM

#

U might neee to use nrfutil to flash the bootloader

#

I had few that didn't show in usb

#

So had to flash it with the zip bootloader

true garden Apr 24, 2025, 3:14 AM

#

i just have the 1

#

behaving that way

olive basin Apr 24, 2025, 3:15 AM

#

Yee

#

Try nrfutil

true garden Apr 24, 2025, 3:16 AM

#

i have the 33dbm version of ebyte arriving i may take hot air and remove one and try adding on 33dbm version

#

will probably do that before adding pro micro because that will make it harder to get to those pads

olive basin Apr 24, 2025, 3:30 AM

#

alr

heady mulch Apr 24, 2025, 8:09 AM

#

Love that lil zigzag down the MOSFETs 😄

true garden Apr 25, 2025, 3:31 AM

#

olive basin Apr 25, 2025, 3:42 AM

#

les go 😅

true garden Apr 25, 2025, 4:07 AM

#

#

It’s at the top of a pole now

olive basin Apr 25, 2025, 4:07 AM

#

#1346425369246302258 is also a good place xd

olive basin Apr 25, 2025, 9:27 AM

#

swift furnace Apr 25, 2025, 9:34 AM

#

cursed C2 placement

heady mulch Apr 25, 2025, 9:39 AM

#

swift furnace cursed C2 placement

What's wrong with jaunty angles?

swift furnace Apr 25, 2025, 9:39 AM

#

nah i love 45deg parts

#

it's cursed because it's the only one

#

lol

heady mulch Apr 25, 2025, 9:40 AM

#

I turned a sop8 to 45 degrees, routed it all up and then decided that 90 was probably easier.

#

¯_(ツ)_/¯

#

Ai autoroute wen?

swift furnace Apr 25, 2025, 9:41 AM

#

if there's ome thing i fuck with

#

it's MCUs at 45deg

#

they just look sexy

#

olive basin Apr 25, 2025, 9:42 AM

#

Ah yes

swift furnace Apr 25, 2025, 9:44 AM

#

Example from work- it’s just so hot

#

just a USB hub

olive basin Apr 25, 2025, 6:25 PM

#

olive basin Apr 25, 2025, 6:49 PM

#

Reverse polarity led works

olive basin Apr 26, 2025, 6:54 AM

#

Undervoltage protection works 👌

#

olive basin Apr 26, 2025, 8:58 AM

#

About 5mins per board

olive basin Apr 26, 2025, 10:33 AM

#

@swift furnace u wanted a board right?

swift furnace Apr 26, 2025, 10:34 AM

#

Yes boss

#

They look fantastic

#

Love the Timelapse 🤣

olive basin Apr 26, 2025, 10:35 AM

#

send me ur details 😅 shipping wont be the cheapest tho 😅 70€+shipping

swift furnace Apr 26, 2025, 10:35 AM

#

kekw

#

Let me have a look when I get paid Wednesday?

#

Save me one tho 🤣

olive basin Apr 26, 2025, 10:37 AM

#

23€ with our own shipping provider, i can try a service if i canget cheaper

#

just send me ur address

olive basin Apr 26, 2025, 10:37 AM

#

swift furnace Save me one tho 🤣

will do

swift furnace Apr 26, 2025, 10:37 AM

#

What was the board price? 23€ not terrible

olive basin Apr 26, 2025, 10:37 AM

#

70

swift furnace Apr 26, 2025, 10:37 AM

#

Ah

#

Damn is that the BOM or manufacturer

olive basin Apr 26, 2025, 10:38 AM

#

25 from jlc

#

i could sell it for 50€ tho 😅

swift furnace Apr 26, 2025, 10:39 AM

#

Ah just a nice margin 🤣

olive basin Apr 26, 2025, 10:39 AM

#

yes

#

actually ur zipcode is enough to see the price i think

swift furnace Apr 26, 2025, 10:40 AM

#

I DMd u

olive basin Apr 26, 2025, 11:41 AM

#

How'd i manage to do this

olive basin Apr 26, 2025, 12:09 PM

#

Almost got it off 😅 but i give up 🤣

#

Theres tiny blobs of solder somewhere keeping it in place

silver crest Apr 26, 2025, 2:48 PM

#

What’s in the new board that the old version didn’t have?

olive basin Apr 26, 2025, 2:59 PM

#

Cn3791 🙃

north wing Apr 26, 2025, 3:02 PM

#

Sadly I'm not going to be able to order any from jlcpcb until these tarriffs are lifted because jlcpcb is now requiring people in the US to provided their social security number to place orders

olive basin Apr 26, 2025, 3:06 PM

#

Could be a while

north wing Apr 26, 2025, 3:14 PM

#

I'm probably going to end up opening an account with ups or FedEx and use that instead so that I won't have to directly give them my ssn

olive basin Apr 26, 2025, 4:40 PM

#

Base node has been converted to solar powered by WashTastic 😅

open seal Apr 26, 2025, 5:18 PM

#

I think you mean Based node 😄

true garden Apr 26, 2025, 10:33 PM

#

opaque flame Apr 27, 2025, 4:43 AM

#

swift furnace just a USB hub

Thanks for the trade secrets 😉

olive basin Apr 27, 2025, 6:51 AM

#

this is self promo so i can post this here 🤣
https://youtu.be/5XOR-l-5XDw

YouTube

valzzu

WashTastic Soldering

WashTastic is a meshtastic node with built in solar charging, battery overdischarge protection and a 1W radio.

https://github.com/valzzu/meshtastic-pcbs/tree/main/WashTastic

▶ Play video

swift furnace Apr 27, 2025, 8:49 AM

#

opaque flame Thanks for the trade secrets 😉

It sez it on da chip

heady mulch Apr 27, 2025, 8:59 AM

#

swift furnace It sez it on da chip

Idk, those wiggles look pretty proprietary to me 🕵️

#

Not much ground pour, either.

olive basin Apr 27, 2025, 5:11 PM

#

Funny enough I'm already at 4 remaining of the 10 i got 🤣

#

Sold 5, used 1 for my node lol

lime ledge Apr 27, 2025, 5:15 PM

#

I want a couple... As long as I know where to swap resistors for different battery chemistry.

olive basin Apr 27, 2025, 5:15 PM

#

Currently lithium only supported 😅 tho im thinking what to do xd

#

Either i make WashTastic into a modular system or just have few variations

lime ledge Apr 27, 2025, 5:16 PM

#

What charge controller is it using?

olive basin Apr 27, 2025, 5:16 PM

#

Cn3791

#

Or cn3162?

lime ledge Apr 27, 2025, 5:17 PM

#

Ah I can see it there. Nice.

olive basin Apr 27, 2025, 5:17 PM

#

V0.3.5 has 3791

#

Probably best to just keep WashTastic as one module and just have few variations xd

#

Time to make cn3795 version 🤣

lime ledge Apr 27, 2025, 5:19 PM

#

I honestly don't know the difference between the 2.

olive basin Apr 27, 2025, 5:19 PM

#

Hahahah

#

3791 is for lithium only

#

95 u can choose chemistry

lime ledge Apr 27, 2025, 5:19 PM

#

Ahhhhh makes sense

olive basin Apr 27, 2025, 5:19 PM

#

Otherwise almost identical

#

91 has lower voltage input tho

#

Min

lime ledge Apr 27, 2025, 5:20 PM

#

Is 3795 the same pinout and size?

olive basin Apr 27, 2025, 5:20 PM

#

Nope 😅

lime ledge Apr 27, 2025, 5:21 PM

#

I'm gonna have to look at the data sheets again.

#

Lol

olive basin Apr 27, 2025, 5:21 PM

#

Tho it shouldn't be hard to add it to WashTastic

#

Its literally almost the same

#

3791 is 4.5V-28V
3795 is 6.6-30V

Thought it was bigger difference

#

Nvm

#

Both are 10pin ssop

#

Aha

#

So they removed the charging done led to gain extra pin for the chemistry selection

#

I do need to reading the chip area lil bit tho xd

#

Everything else should be fine left as default, tho can't use the battery protection chip tho 😅

#

Won't work with anything that goes below 2.9V 🤣

#

Pr over 4.2V

lime ledge Apr 27, 2025, 5:36 PM

#

Hmmm yeah. Or just add a jumper to disable protection?

olive basin Apr 27, 2025, 5:37 PM

#

😅

#

Fair

#

For lto doesn't matter either way lol

lime ledge Apr 27, 2025, 5:37 PM

#

True

olive basin Apr 27, 2025, 5:39 PM

#

Probably could have a version done tomorrow or something 🤣

heady mulch Apr 27, 2025, 5:40 PM

#

olive basin Everything else should be fine left as default, tho can't use the battery protec...

Autopoieesis and me have a custom cutoff circuit .

olive basin Apr 27, 2025, 5:41 PM

#

Mmmm

#

Im interested now

heady mulch Apr 27, 2025, 5:42 PM

#

Takes a lot of board area, and is pretty complicated to make it not waste power

olive basin Apr 27, 2025, 5:42 PM

#

Dang

heady mulch Apr 27, 2025, 5:42 PM

#

But can do high and low cutoff at whatever voltage you want

olive basin Apr 27, 2025, 5:42 PM

#

Cool

heady mulch Apr 27, 2025, 5:43 PM

#

I'll find the part later on...

olive basin Apr 27, 2025, 5:43 PM

#

So in theory i could make a array of resistors like on mppt selection to have different voltages definable by end user

heady mulch Apr 27, 2025, 5:44 PM

#

Uh

#

Kinda

olive basin Apr 27, 2025, 5:45 PM

#

🤣🤣🤣

heady mulch Apr 27, 2025, 5:47 PM

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I think ahe programmed it all in Atopile, which doesn't help either of us.

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I think you can take the repo, make some changes, commit it and the GitHub actions compile it, but idk

olive basin Apr 27, 2025, 5:48 PM

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Dang

heady mulch Apr 27, 2025, 5:49 PM

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She answers questions better than I can 😄

olive basin Apr 27, 2025, 6:30 PM

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Now that i think of it

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With ltos u would need boosting for promicro 😅

lime ledge Apr 28, 2025, 5:15 AM

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Not if you require 2S

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gigachad

olive basin Apr 28, 2025, 5:27 AM

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ah

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ye

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fair enough

remote jungle Apr 28, 2025, 5:46 AM

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but then you'd need balancing, no?

lime ledge Apr 28, 2025, 6:14 AM

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Yeah, I was just being an ass.

olive basin Apr 28, 2025, 6:44 AM

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i wonder how keith did the balancing since this has 3 pins

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one ground and 2 positivie

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dont see 3 pin connector here

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heady mulch Apr 28, 2025, 9:00 AM

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olive basin i wonder how keith did the balancing since this has 3 pins

I don't believe he did - he figured 2x cells from the same batch would age similarly together.

olive basin Apr 28, 2025, 9:00 AM

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gotcha

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we ball then 🤣

heady mulch Apr 28, 2025, 9:01 AM

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But I'm sure captain cap was saying something about using capacitors and resistors to do balancing if we really care deeply about it.

olive basin Apr 28, 2025, 9:01 AM

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but do we?

heady mulch Apr 28, 2025, 9:02 AM

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I don't know. I think the main risk is over-volting one cell if the other goes short-circuit?

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I did wonder about using an ina3221 to monitor this stuff.

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Like, use one channel for top-voltage and current shunt, and then another channel for middle and bottom voltage.

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And then a conventional low-side cutoff can still be used.

olive basin Apr 28, 2025, 10:13 AM

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now i gotta fit some resistors in here somewhre 🤣

heady mulch Apr 28, 2025, 11:47 AM

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olive basin this is self promo so i can post this here 🤣 https://youtu.be/5XOR-l-5XDw

Is that solder dispenser pen any good?

olive basin Apr 28, 2025, 11:50 AM

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Pretty good in my opinion

heady mulch Apr 28, 2025, 11:51 AM

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Manual or powered?

olive basin Apr 28, 2025, 11:56 AM

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manual haha

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3d printed

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there we go 🤣

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tho i do now need to change the mppt values

heady mulch Apr 28, 2025, 12:12 PM

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olive basin 3d printed

Link? 😄

olive basin Apr 28, 2025, 12:12 PM

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lemme see if i can find it

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https://www.printables.com/model/843353-solder-scroll-ergonomic-adjustable-solder-tool

Printables.com

Solder Scroll - Ergonomic, Adjustable Solder Tool by Victor | Downl...

The Solder Scroll allows you to easily add solder of different diameters. | Download free 3D printable STL models

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xd

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ive gotten so used to it that when it runs out and im lazy to refill it i dont know how to use solder anymore 🤣

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cuz its so thing

heady mulch Apr 28, 2025, 12:16 PM

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Me here using 1.2mm solder cuz I'm too cheap to buy the thin stuff

olive basin Apr 28, 2025, 12:17 PM

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i stole my dads solder xd

heady mulch Apr 28, 2025, 12:36 PM

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Full of lead? 😋

olive basin Apr 28, 2025, 12:37 PM

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it indeed is leaded

heady mulch Apr 28, 2025, 12:42 PM

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Sweet

olive basin Apr 28, 2025, 2:02 PM

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values have been updated

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some values are rounded up/down 😅 for the text

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like 10.3V or 20.6V

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prob better to round up with this

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there we go

remote jungle Apr 28, 2025, 2:18 PM

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are those common solar panel voltages?

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like, what setting do I pick for a '12V' solar panel? should I measure the open voltage of the solar panel

olive basin Apr 28, 2025, 2:22 PM

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for 12V u select 11V

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etc

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if open voltage doesent go above 30V u good but ye working voltage of 12V u choose 11V

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ill list the actuall voltages those set points are 😅 they are lower what is displayed

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acording to resistors
21V = 20,5V
16V = 15.7V
11V = 10,2V
8V = 7,4V
7V = 6,4V

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thats what the chip will expect atleast

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technically the voltage range is 6.6-30V but min 7V is probaply more reasonable as the min

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like keiths board

remote jungle Apr 28, 2025, 2:34 PM

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so then does it work with a 5V solar panel?

olive basin Apr 28, 2025, 2:34 PM

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no

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the current one on github will

remote jungle Apr 28, 2025, 2:35 PM

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I'm a bit confused to what the 12V in 12V solar panel refers to

olive basin Apr 28, 2025, 2:35 PM

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V0.3.5.3 works with 5V panel

remote jungle Apr 28, 2025, 2:35 PM

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0.3.5.3 damn what a version number

olive basin Apr 28, 2025, 2:35 PM

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yes

remote jungle Apr 28, 2025, 2:36 PM

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are there any imperfections in that version?

olive basin Apr 28, 2025, 2:37 PM

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only one, the promicro might not boot on solar only. i didnt notice this but @true garden did also they checked it with oscilloscope and there were some ripple on the battery line when no battery was connected. worked fine with it connected tho

olive basin Apr 28, 2025, 2:40 PM

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remote jungle I'm a bit confused to what the 12V in 12V solar panel refers to

so lets say u have 5.5V panel i move the 5V dip since its the closets.

7.5V u either move 5V or 6V dip 😅 it works down but not up xd but for maximum efficiency u should move 6V dip etc

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did this help?

olive basin Apr 28, 2025, 2:42 PM

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olive basin only one, the promicro might not boot on solar only. i didnt notice this but <@2...

ill add some caps to hopefully help with this

remote jungle Apr 28, 2025, 2:52 PM

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yeah that makes sense

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do you have like a lineage graph to trace what versions originated from what other versions?

remote jungle Apr 28, 2025, 2:54 PM

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olive basin ill add some caps to hopefully help with this

to the version that can handle 5V?

olive basin Apr 28, 2025, 2:54 PM

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ye

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ill just need to figure what caps 🤣

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well i did get some recommendations but one of the caps i cant add even if i wanted i think

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i can try lol

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but ye

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ill add some caps maybe tomorrow

remote jungle Apr 28, 2025, 2:58 PM

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why did you update the voltages of the MPPT? I don't get the reason behind it (except maybe more optimal voltage for a smaller voltage range of solar panel?)

olive basin Apr 28, 2025, 3:00 PM

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its a diffrent chip 😅 it now has cn3795 that is multi chemistry

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3791 is just lithium

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so thats why

remote jungle Apr 28, 2025, 3:17 PM

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ah, I see, makes sense

true garden Apr 28, 2025, 3:37 PM

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olive basin only one, the promicro might not boot on solar only. i didnt notice this but <@2...

And the dip switch silk screen

olive basin Apr 28, 2025, 3:37 PM

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that too lol

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that is already flipped lol

true garden Apr 28, 2025, 3:38 PM

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He’s testing one in hand ? Or thinking about ordering ?

olive basin Apr 28, 2025, 3:38 PM

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thinkig of ordering i assume

true garden Apr 28, 2025, 3:39 PM

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The worst part of building is getting the stupid kapton tape off the dip switch

olive basin Apr 28, 2025, 3:39 PM

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agreed

remote jungle Apr 28, 2025, 3:53 PM

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yeah, I'm thinking about ordering one, but was waiting for the hardware feedback to come in once people had a board in hand

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I'm happy I waited 😉

olive basin Apr 28, 2025, 3:54 PM

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heady mulch Apr 28, 2025, 4:13 PM

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true garden The worst part of building is getting the stupid kapton tape off the dip switch

You could always ask for pin headers and a teeny lil jumper.

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Old school styleee

true garden Apr 28, 2025, 4:29 PM

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heady mulch You could always ask for pin headers and a teeny lil jumper.

It’s not a big deal it’s fine once it’s done

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It’s just difficult to get the tape off easily

heady mulch Apr 28, 2025, 4:29 PM

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Tweezers?

true garden Apr 28, 2025, 4:29 PM

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It’s just funny that it’s the most difficult part of building it

heady mulch Apr 28, 2025, 4:29 PM

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More kapton?

true garden Apr 28, 2025, 4:29 PM

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As in a joke

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Used tweezers

heady mulch Apr 28, 2025, 4:30 PM

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What is a joke? Meshtastic is serious business.

true garden Apr 28, 2025, 4:30 PM

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It’s just fiddly

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The tape is perfect cut to the edges of the dip switch

heady mulch Apr 28, 2025, 4:30 PM

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serious

true garden Apr 28, 2025, 4:30 PM

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It’s very difficult to get under

heady mulch Apr 28, 2025, 4:30 PM

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business

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🙂

olive basin Apr 28, 2025, 4:33 PM

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haha

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okay theres no some caps 🤣

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to maybe help lil bit 🤣

olive basin Apr 28, 2025, 4:52 PM

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alr it has been pushed to github

olive basin Apr 28, 2025, 5:45 PM

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@remote jungle Ur probably fine ordering

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There's 4 boms 😅

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2 with bme280 and 2 without

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Also with or without connectors

remote jungle Apr 30, 2025, 10:02 AM

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Does washtastic restart by itself if the voltage of the battery drops too low and is then recharged by solar? I remember some boards having issues with that and needing manual intervention.

olive basin Apr 30, 2025, 10:03 AM

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theres and ic that turns output off at 2.9V

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i tested it with my psu and it did do that

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and turned it back at 3V or something like it

true garden Apr 30, 2025, 10:27 PM

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the charging circuit has been working pretty well here

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granted we have a ton of sunlight

#WashTastic - 1W node based on E22-900M30S and promicro NRF52

serious

business