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

8268 messages · Page 9 of 9 (latest)

foggy tartan
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PG on the LM73100 is cursed, it’s good you didn’t try to use it lol

I had to drill a via out in a few dozen boards because of that…

heady mulch
foggy tartan
heady mulch
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I've worked out what it's for now

olive basin
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Lo

foggy tartan
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It’s not for being a MCU power rail supervisor, I can tell you that much…

heady mulch
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No

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It's for.... 🥁

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Adding hysteresis!

olive basin
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Haha

heady mulch
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Slap a big resistor to that, and it'll pull the EN pin down a tiny bit.

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Well, removing hysteresis if you want.

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Adjusting it

foggy tartan
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There is already hysteresis on the under/overvoltage threshold, but you’d saying use the output of it to screw with those more if the default isn’t what you want?

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I have done that trick on a boost converter…

heady mulch
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Yes, although I wouldn't do it with one of them. That's how you end up burned...

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But mostly it's just another not-very-good comparator.

olive basin
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heh

rose inlet
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Is the solar charging circuit at all connected to the pro micro?

I was having issues with my battery charging with an old pro micro bootloader and suddenly when I updated the bootloader the solar charging worked as expected. Thanks

olive basin
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i mean its on the battery line so technically it does go to the promicro

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but not controlled by it

rose inlet
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Right

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Ok

heady mulch
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@blazing trout this is the channel for the washtastic, in case you're not familiar with it.#

olive basin
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haha

heady mulch
olive basin
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price for single unit is 85 and tx power is 1W

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lead time is not 30+ days when in stock 🙃

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like it is currently

heady mulch
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I put price as my number 1 priority and it puts nodes at the top that will literally bankrupt me.

image.png
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I call 10000000% BS

olive basin
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heh

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and wheres my board 🙃

heady mulch
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yeah, I'm calling it.

blazing trout
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HEY! i'm happy to update data.
I'll take a look rn

Thank you for calling this to my attention

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I'm editing the database now. Just to verify
Nrf52840 based, E22 1W radio
Is there gps natively? is it optional?
are there buttons on the board for IO? if not, can you wire buttons to the GPIO?

The price is likely wrong as well. What's the current price including shipping and tariffs to USA?
What's the current lead time?

blazing trout
heady mulch
blazing trout
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thats the point of ajustable weights

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It obviously needs tuning but the goal is to just have a database which people can filter.

heady mulch
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I'll have a look at the formula, but I suggest many of the factors are non-numeric.

blazing trout
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I need more documentation as well. Please share anything that seams vague and confusion.
Sure I sell radios but that's not the point of this tool.

blazing trout
olive basin
heady mulch
blazing trout
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okay. looks like its in stock so I'll just call lead time one day like how I do on other sites.

olive basin
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36 in stock :)

blazing trout
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Elecrow is only showing that the DDP fee is $8.80 to USA
With the current rates, its should be around $35-45

I know some people who bought them there so I'll verify what they ended up getting charged.

heady mulch
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Yeah, I think you need to apply some non-linearity to these scales. It's weighing ruggedness and waterproofing too highly, compared to nodes that can just be mounted simply in an electrical enclosure.

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There's also the matter of included benefits: the expensive dev boards in a fancy box are presumably for wall charging only, no solar or multi-voltage capability.

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Stuff like the washtastic and the various solar nodes don't get any credit for that, either.

blazing trout
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the additional fields for ruggedness don't add to the weight of ruggedness, it just changes which values the tool looks at to score a device's ruggedness.

One easy thing I can implement for price would be a max price slider.

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also, perhaps a region selection which would adapt tarrifs to where you're ordering from

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ya, I just verified the price for 2 to usa was $280 for a friend.
I plan on adding some filters as well which would help your board but for USA user, its currently ranked 5th because of the tariffs.

I'll check back after I add more to the site to make it more fair for non usa buyers.

image.png
foggy tartan
blazing trout
severe halo
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How many boards in your list comes with adjustable solar voltage panel ?

blazing trout
olive basin
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someone reveived a board with broken sensor 😅

IMG_3635.jpg
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One of my radios has a bad temperature/humudity sensor.
The sensor metal case has a dent in it, and it does not report a proper humidity.
 
The other radio works perfectly.
 
Here are debugging messages from the temperature/humidity sensor.
 
kilian0:
DEBUG: AHT10/AHT20 temp: 22.785378
DEBUG: AHT10/AHT20 humidity: 20.301533

kilian1:
DEBUG: AHT10/AHT20 temp: 22.175789
DEBUG: AHT10/AHT20 humidity: 0.000000```
heady mulch
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Oh dear

olive basin
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yeaaa

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first board that is actually defective, can u believe it?

or atleast first reported

heavy mist
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shipped from your or elecrow?

olive basin
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Elecrow

heavy mist
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hmm hard to tell whose fault it was then.

my sensors had this yellow tape on top when received from jlc 🤔

olive basin
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It does have a tape on it

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But its had a dent 😅

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Clearly someone hit it

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Maybe not elecrows fault

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But certainly not buyers

olive basin
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Issue has been resolved, Elecrow is sending replacement sensors 😅

heady mulch
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User gonna fit them themselves?

olive basin
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Yup

heady mulch
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Wow

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Your users are good

olive basin
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Id be surprised if they didn't know how to do it

olive basin
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Lets see who i see from elecrow at ew

gilded cedar
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I need to get my a microscope setup for my iron station..

olive basin
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in need a microscope

olive basin
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Boards are on sale while there's stock

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(december 31st)

gilded cedar
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Did anyone ever end up making an enclosure for this board ?

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3D Printed one..

crisp tundra
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I saw one

gilded cedar
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Hmm, my washtastic board can't be connected to when just on battery power it seems.. Which is odd..

crisp tundra
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@heavy mist you made one case right?

gilded cedar
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Not even connecting to PC via USB w/ Meshtastic desktop..

crisp tundra
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This one.

gilded cedar
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So the board has to be vertical ?

heavy mist
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if you have any wishes just dm me, maybe we can do something 🙂

gilded cedar
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Odd, I had to reflash the board to get it to connect..

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I have a v0.3 board, looking for an enclosure to be used on my dashboard.

heavy mist
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this model is for the v0.3.5

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if iris can provide a 3d model for the v0.3 i can adjust the mounting holes, rst button und on/off looks like to be on the same position as on v0.3.5

gilded cedar
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I think the 0.3.5 is just a longer board, more components on it..

gilded cedar
heavy mist
gilded cedar
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@olive basin You got a CAD file for v0.3 board ?

olive basin
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uhh

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maybe

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cant look now rho

gilded cedar
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No worries, when you can.

gilded cedar
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@olive basin Not trying to bug, just following up on the cad for v0.3 board.. 🙂

olive basin
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Yea i forgot 🤣

gilded cedar
olive basin
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U know, forgot it again lol

gilded cedar
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@olive basin CAD ? ;P

olive basin
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Will remember one day

gilded cedar
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@olive basin Time to bug you again.. ;P CAD ? LOL

olive basin
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ah yes

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hold on

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idk how it looks

gilded cedar
heavy mist
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🏃

heavy mist
gilded cedar
heavy mist
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send pic pls

gilded cedar
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I'll grab one next time I go out to the garage..

gilded cedar
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I guess for this one, the enclosure you have already could work. For my truck tho, its different. Ill get some photos tomorrow of that..

heavy mist
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u want to but it in front of the screen flat in dis little "tray"?

gilded cedar
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Wife starts complaining if anything blocks her infotainment screen..

gilded cedar
heavy mist
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ok, hear me out.... suction cup and stick it to the back of the infotainment 🤣

gilded cedar
olive basin
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Mmmm......

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The reverse polarity mosfet gets hot

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@heady mulch

heady mulch
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In normal operation?

olive basin
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charging

heady mulch
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Might need to check the gate/drain voltage while it's doing so

olive basin
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ill have to do that

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but yea, would have not know this 😅

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some of the charging current might be lost there

heavy mist
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is this the sponsored cam?

olive basin
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definetly not

heavy mist
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what cam is this, seems good quality

olive basin
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it indeed seems pretty good

heavy mist
oblique moon
olive basin
oblique moon
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I dunno, lemmie fire up the serial montior. I didn't see anything unusual last time I looked. Wish you could open the serial monitor from the web client.

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I'll let it run for a bit.. right now just stuff like DEBUG | ??:??:?? 6425 [Power] Battery: usbPower=1, isCharging=1, batMv=4247, batPct=100 DEBUG | ??:??:?? 6485 [Power] Battery: usbPower=1, isCharging=1, batMv=4243, batPct=100 DEBUG | ??:??:?? 6545 [Power] Battery: usbPower=1, isCharging=1, batMv=4243, batPct=100

olive basin
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u should open serial monitor when u are booting it

heavy mist
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is an battery attached? even when powered with usb, a battery is needed for the e22 module to work

oblique moon
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hmm a battery is not attached, maybe that's it.

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any tips on a good battery to get for it?

olive basin
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ah yes

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thats ur issue

olive basin
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I have 10 WashTastic coming my way

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Will list on etsy once they arrive

meager spruce
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@olive basin - If i'm using a 0.3.2, and I'm using an external battery with Keith's MPPT, am I just passing 5V to the Solar Port? Its been so long since I've set one of these up on solar.

olive basin
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Keith's mppt charger?

meager spruce
olive basin
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Use its own input and put it's output to the battery port

meager spruce
# olive basin Use its own input and put it's output to the battery port

hmm and here I thougtht itd be on Solar because if I were to ever plug the ProMicro into a powersource it might try to send a charger over the battery port.
Am I sending the battery port 4.2V or 5V? or should I just stick with the 3.3V? The battery on this is a 2S LTO, so i'm able to output 5V+ no problem.

olive basin
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Battery 4.2

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Max

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Diode :)

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If u put on solar port u want something on the battery port to smooth it

meager spruce
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ok, i'll adjust it to 4.2V. Just wanted to make sure I wasn't going to underpower it.

olive basin
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Ill have some boards in eu soon

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Rly soon

olive basin
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I now have 10 in stock

20260507_105725.jpg 20260507_105731.jpg
olive basin
severe halo
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"This is not a final product. It doesn't work out of the box. Final user needs to add battery, casing and proper legal antenna. Hence the final assembler (ie final user) is the sole responsible of making the product compliance with their regional limits."

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short version: fuck off

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XD

olive basin
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appropriate response lol

severe halo
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have you though of going E22P ?

olive basin
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yes

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this is just old batch

severe halo
olive basin
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sure ill do that

severe halo
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I won't charge for it this time

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is like @heady mulch final sentece on it's mppt (which I'm really tempted to buy btw):

This is a limited-run development board, intended for trial use by electronics hobbyists who understand the use and risks associated with charging Lithium Ion Cells.

olive basin
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yeee

severe halo
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basically saying 'buy it only if you know what you are doing'

olive basin
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haha true

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also idk how the ce mark even rly works 😅
i mean yes i can just say it complies lol but if someone asls for certification idk then lol

severe halo
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you submit papers to the organism regulating it

olive basin
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well yes, then again everytime i change something tests needs to be run again

severe halo
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actually the E22P gets its compliance because the built-in filters eliminates the harmonic frequencies

olive basin
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once im out of stock on these once i will start using em heh

severe halo
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the bad thing is that the promicro is not anywhere close to get the CE certificate

olive basin
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still got 24 on elecrow and 10 on me

severe halo
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you cound do a rework and design the board with a xiao nrf which it is CE

olive basin
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oor

severe halo
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you can also yet off the BT antenna from the promicro and state 'bluetooth not supported, configure only by cli' xDD

olive basin
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but then no ota updates

severe halo
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I still have 2.6.11 nodes running

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no plan on going to site to update them anyways

olive basin
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dam

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but yea, maybe ill redesing it to use CE marked nrf lol

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Tho using e22p means i need 868 and 915 versions 🙃

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Not rly an issue

severe halo
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yeah it sucks, and the community seems to be in a constant change

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I'm now mounting the XiaoWa from gargomoma

olive basin
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Haha

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I did notice that too on sales

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Haven't sold much lately

heady mulch
severe halo
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I don't get it.. are there plans on running meshtastic in a nrf52832?

olive basin
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Lol

severe halo
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heh... quick trigger commenter then

heady mulch
severe halo
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@heady mulch is this board published somewhere to put an order on jlcpcb or is etsy the only way to get my hand on one?

heady mulch
severe halo
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my baD!

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this mppt from you

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(sorry for the offtopic @olive basin )

heady mulch
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It's fairly straightforward to make. Simply take the datasheets of the bq25895, the ina3221, the tps6310000000 and the tps61022, the lm66200, and the cn302 and follow the reference designs and layouts, and then just start tessellating the shapes.

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And in 8-10 weeks months you'll have the same thing.

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🙂

severe halo
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🥲

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is a promising board, I wanted to try it but the 'limited existencies' stops me because if I like the board for my builds there will be a point where I won't be able to get more of them :C

heady mulch
severe halo
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ohhh that's so lovely! only for that I jut bought one

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you should toss some meshtastic stickers in the packet xD

heady mulch
severe halo
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there you go, a new bussiness idea

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joking

heady mulch
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I keep thinking of embroidery patches. Idk why.

severe halo
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didn't want to mention the tension about trademark use 😅

heady mulch
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I'm fairly sure the MPWRD is ok

olive basin
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I have meshtastic stickers

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I could post some for the price of the postage

severe halo
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you too are lovely Iris. Thank you for the offer! I actually was poking a bit at tom 😛

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on a related note, where did you got those meshtastic stickers? I wasn't aware of //\ stickers on the wild

olive basin
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Well.... Our lovely @vapid bridge Gave me stack of mpowered stickers.

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At embedded world

vapid bridge
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you summoned me, Mistress? 😉

olive basin
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Uuuhhhh...... Ummhh....

vapid bridge
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i finally had a bit of the chocolate. that's really good. can't decide if the finnish ao swiss chocolate is better.

olive basin
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Hehe

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It is indeed pretty good

severe halo
olive basin
severe halo
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Well, thats more than a few haha

severe halo
vapid bridge
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@severe halo where are you (roughly) located? there may be stock closer to you 😉

severe halo
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I’m from Spain. As far as I know there’s no local meshtastic representative :C

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I’m mod on the biggest meshtastic spanish community, a telegram channel with 4800 members, and never heard of anything official in our territory.

vapid bridge
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I can send you a sticker pack for sure. but indeed, there's no official in spain. Although i usually cover that as 'EU' on a broader base.

heady mulch
severe halo
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I’m planning on distributing them among our local node builders.

vapid bridge
rose inlet
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is there a common failure on the CN3791 circuit? My v3.5 board seems to never charge, the firmware pretends that it is charging both over solar and usb when I unplug it, it goes back to what it was... I may have torched the board or the protection to it... any help would be greatly apprecited I have been trying to diagonose this for weeks, with better solar batteris and solar pannels, to no avail

olive basin
rose inlet
olive basin
rose inlet
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So I think it is the solar pannel. It gets up to 4.9V but struggles to pass any current to the battery

olive basin
rose inlet
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Ok, it was the solar panel, It had a 2a regulator on it from the factory. Removing that and soldering directly to the panel and connecting it fixed the charging issue. Thanks!