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

[vague blade]

Yeah so it's like that but worse

but sometimes they have good deals

Hahaha do you ever not realize in design how tiny something is?

the holes for those pins might be a struggle on some printers, I gotta make them a little bigger too

I'll make a little test chunk people can print to get the fit right

[severe halo]

All the time. Every time I design something to print… the zoom is too much at the app

[vague blade]

Gonna have to start importing a model of a banana for scale

[severe halo]

just made my order at jlcpcb

16€, way cheaper that the pogo pins

add the 4€ in the test spears, and maybe 1.5€ on 3d printing

[olive basin]

Cheap

[severe halo]

yeah and thats for 5 units xDD

[olive basin]

Yea

I wonder how well would a fully assembled unit sell

[heady mulch]

You'll sell 2

😐

Just make enough for you, me, someone else and a spare

I don't think there's many people wanting to test 50x pro-micros.

Sadly.

[olive basin]

Probably not 😅

Well its on GitHub if anyone rly wants to lol

[severe halo]

I'll poke the local spanish comunity

the telegram group has grown massively

3200 memebers currently

[olive basin]

holy shit

[severe halo]

obviously there's a lot of inactive users, but the growth happened after the zero energy blackout that affected the whole country for a full day

[small blaze]

80 dolla dolla

[severe halo]

Promicro testing time

[severe halo]

Well all five tested perfectly

However they behave sighly different from the other I already have

For example, the new ones do the reset when the .uf2 ask it. The olders dont; i have to manually double short rst to gnd each time.

[olive basin]

Update bootloader maybe

That solved it usually for me

[severe halo]

The other different behaviour is the built in led when running Iris test firmware. The older boards blinks the built int led just the same as the gpios leds. This one doesnt. Is like it tries to breath when is ‘off’.

[severe halo]

In any case all the test I ran with older and newer promicros were made with the same updated bootloader 0.9.2 from adafruit. I have the file located in a work folder and have used the same file in both old boards and new boards

[olive basin]

Interesting

[severe halo]

Look the built in led

Another characteristic is that these new boards have the bt antenna upside down

[olive basin]

i was about to comment that the antenna looks different xd

[severe halo]

Is the same antenna chip. The C3 antenna looks like that on the downside

Different chinesse cloner 😅

[olive basin]

looks like it xd

https://zipline.valzzu.xyz/u/lr54Fz.png

mmmm

[severe halo]

Old one. Unsoldered from a washtastic

[olive basin]

ah

gotit

[severe halo]

Thats what happens when you try to separate them with slot screwdriver when is not yet hot enought

[silver crest]

That’s awesome

[small blaze]

Is this PCB avaible?

[severe halo]

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

[small blaze]

Thanks

Pretty neat

[severe halo]

The version at my video is the old one with pogo pins

The one at the site is the new yet to be tested version

I ordered 2 days ago xD

[small blaze]

Imma just use it for the nrf52840 so I dont have to Design a new board hahah

[small blaze]

Tell me if it works

[severe halo]

Well is the same but bigger holes to accomodate the test probe spears instead pogo pins

[small blaze]

I dont really understand 😅

[severe halo]

This

And this

[small blaze]

Oh so you Can just press it on

[severe halo]

Also this

Yes

[small blaze]

Nice

[severe halo]

Btw the promicro is yanked from here: https://github.com/ICantMakeThings/Nicenano-NRF52-Supermini-PlatformIO-Support

[small blaze]

I dont really know what you mean

[severe halo]

I understood from here that you wanted a model for a new pcb?

[small blaze]

I meant I use the pro Micro to Test stuff for my nrf52840 SMD node

[severe halo]

Ohhh right

[small blaze]

My V2 should arrive soon

[severe halo]

What v2?

[small blaze]

Sorry missing context, my node v2.0

The better Version of the First one

[olive basin]

Testing boards are shipped, estimated arrival 30.9

[severe halo]

Cool. Mine are packaged, I guedd they are about to get shipped

[vague blade]

Ooh you guys will probably get the parts sooner than me, I'll upload the case source in a bit, it might need some adjustments for the probes

[vague blade]

Test fit parts to check the probe hole sizing (might need to be drilled afterwards tbh, depends on your printer)

and the enclosure itself:

[olive basin]

u gonna publish these on printables or something? so i can link an give credit to u?

or do u have github account?

[vague blade]

I can yeah, I'll wait til we make sure it actually fits 😅
https://www.printables.com/@DarkStar851_1890652

[olive basin]

aight

ill link it once its up on the readme

[vague blade]

Sounds good

[olive basin]

Not sure but i think elecrow is also getting the jig 🤣🤣

Atleast i understood something like that

[severe halo]

Oh yeah how is that going? Did you reach then wirh your tests results?

[severe halo]

I will try it once i get everything on my desk

[olive basin]

I did email them about what i found and today my contact on discord messaged and asked if i got the boards and if I managed to test em

Said the same thing that i emailed

[severe halo]

Lol

[olive basin]

But then also we just talked bit and i forwarded some of ur videos xd

Of working aand broken board xd

[severe halo]

Yeah those two are fun

[vague blade]

at least elecrow knows how to make actual professional test probes 😂

[olive basin]

But will they 🙃

Or will they just use mine xd

[vague blade]

who knows 😂

that would be hilarious

[severe halo]

The day I received the freshly test board from jlc the first board I try is the one with the fliped gpio. I had to look twice the led to be sure the polarity wasnt reversed

[vague blade]

picturing someone in their fab trying to assemble this thing

[olive basin]

Yea 🤣 no assembly instructions nr pics of finished unit lol

[severe halo]

Are they building a jig?

[olive basin]

I understood its what i made lol

[vague blade]

send them this titled "assembly instructions"

kekw

[severe halo]

Are they building your jig? Lol

[olive basin]

I assume so

[severe halo]

I’m looking this at my junky cad app, looks awesome. Did you modeled the probes?

[olive basin]

Looks good 🤣

[vague blade]

Yeah haha, the pin headers I just got off grabcad, they're slightly wrong

they're not 100mil they're 2.5mm lol, but close enough, the holes are from the pcb dxf so they're in the right spot

I guess my appearances don't translate properly in step, in fusion they're even the right color lol

Oh Shapr gets them right too, just that web app I guess

[olive basin]

My testing pins won't be here next week i think.

Well see xd

[vague blade]

Mine are still gonna be a while, probably next month 😭

[olive basin]

Oof

[vague blade]

Oh, or not, "arrived at local airport"

[olive basin]

🤣

[vague blade]

that usually means ~1wk away

I figured for $5 with free shipping they'd glue them to a postcard

[olive basin]

Mines still in china i think

Estimated delivery October 8

So ye

Well see

Usually gets here faster

Then i can start testing the 50 promicros in got lol

[vague blade]

I only have 5 to test right away 😅 but I liked the tester board and it looked easy to make a case for

[olive basin]

1 promicro per pcb lol

[vague blade]

I expect to kill a few pins in test fitting so, parts to assemble 4 lol

[olive basin]

Xd

Anyway time to eep

[vague blade]

😴 ttyl, keep us posted if elecrow actually tries to make one of these lmao

I realized too, you could put a solder a programmed promicro to the pin header side, and use it to function test washtastic boards before soldering

case would need a few tweaks but nothing hard if that'd be useful

[olive basin]

Oh yea true 😅

Tho the promicro would not be on female headers.xd

So far i haven't seen a non functional pcb

Only promicros

But u never know lol

Anyway now I'll go for real 🤣

[severe halo]

I had four to test, the first one was the bad one

Next batch came yesterday, 5 pro micros, all 5 tested good

[vague blade]

See and that's just my luck too lol, at least I'll have peace of mind

[severe halo]

May get it in a day or two

[severe halo]

These things are definetly small

Too bad the pcbs are still at jlc

[olive basin]

mines in finland 🤣

next week most likely xd

[olive basin]

Hmmmmmm...... Now the boards are like 70km away 🤔

I wonder

[olive basin]

My test pins are in china but my boards are in Finland and karman has it the other way 🤣🤣🤣

That is hilarious

[olive basin]

Gonna get my boards today

[vague blade]

#1194757507013427250 message @olive basin dunno if you saw this in the other channel, case fits 🥳

Guess you'll have to wait on the pins though 😭 damn typhoons

[olive basin]

For him but does it for me 🙃

[vague blade]

I mean he printed in ASA, basically a torture test for the holes 😂 if that worked you should be fine

[olive basin]

But my printer isn't accurate 😅

If 32.5mm hole doesn't fit 32mm pipe xd

[severe halo]

her printer (ender 3?) has been making huge blobs lately

bowden system + wet filament, bad combo

[olive basin]

Ender 3 clone

Pla is fine but still not accurate

[vague blade]

Oh oof, well it should print fine on like any current generation cheap printer if you know anyone

I have ender 3s, but the newest one 😂 they don't even look like enders anymore

[olive basin]

I will be getting a corexy soonish

Qidi q2

[heady mulch]

QQ

[olive basin]

QQ2

[heady mulch]

QQQQ

[olive basin]

Guess what's waiting me at home? 🙃

[severe halo]

a printer?

[olive basin]

I wish 😅

[severe halo]

well, technically at home there's a printer waiting

[olive basin]

Ahahah true lol

[olive basin]

I don't think thats the correct size 🤣

[severe halo]

nah, they are

[severe halo]

this picture doesnt really show how small they are

in fact, they fit in the holes of the promicros

[olive basin]

i mean the screw hole

[severe halo]

at least in the 3 lined pad

ahh

yeah that hole is not even similar to the one on the 3dpiece

[olive basin]

oh hmm

lemme check

[severe halo]

i dont mean the location, I mean the size

[olive basin]

yea yea

ah nvm 🤣

not jlc issue lol

ur board is gonna be correct

i wonder how bad it would be if i just drill a hole 🤣

[severe halo]

whats the issue ?

preview of my board look fine

why yours is that small ?

also, misplaced

well, you have the traces map

you're the one to say if you can drill

[olive basin]

i have 5 boards anyway lol

[olive basin]

they arent even mounting holes lol

i had orderd a one edit older what u did 😅

[severe halo]

oh I see

v0.2

mine is 0.3

[olive basin]

yup

i have a drill and boards 🤣

[vague blade]

nothing routed there, drill away should be fine

[olive basin]

🤣

this is what elecrow is doing 🤣

thats hilarious

[vague blade]

holy shit it looks like I made it

[olive basin]

ill have to record them a video how i test the boards

aparently they are still getting the error

well now i have brand new promicros xd

i can test with those lol

[olive basin]

first one i took from the box works xd

spijsdklfsädöjfd

[olive basin]

https://zipline.valzzu.xyz/u/kJ9QEO.png

oh no

i just soldered one of the boards that tested fine

[heady mulch]

Try uploading the Meshtastic fw to a loose one, and put it on the test bed.

[olive basin]

just did that and flashed it back to mine and it worked

idk

well see

[heady mulch]

Have you changed literally anything on your PCB between JLC and elecrow?

[olive basin]

nope

[heady mulch]

😵‍💫

[olive basin]

man tf

new board, same outcome

[heady mulch]

You got an Elecrow without a pro-micro on it?

[olive basin]

jlc boards

had few with no pormicros

[heady mulch]

Ill be free around 12 noon UK time.

We can go through what is what then.

Need to get to the bottom of this.

🧐

[olive basin]

agreed

i rly dont wanna switch fully to v4.0 cuz its expensive as hell

tho that would rule out everything 🤣 most likely

[heady mulch]

Can you download the Gerber files you sent to each of Elecrow and JLC, plz?

[olive basin]

ill see if i can

but the fact that i had jlc boards fail now is interesting

so 5 total now

5/10

yea i got the files

[olive basin]

Ill eat first

Should make it before ur free xd

Maybe

[heady mulch]

My current meeting is interminable... And I asked a question, so I'll be a while.

[olive basin]

Alr

[severe halo]

have to go out

I just read everything...

in the meantime you should recover a elecrow board by desoldering the promicro and soldering a female header

to ease testing

at this point I don't know how to proceed without a logic analyzer

try testing continuity and shorts between pins and also power it from a bench power supply, 4v 2A to the battery port to discard usb underpower

will see ytou later

[olive basin]

yeaaa

[olive basin]

will try 🤣

[heady mulch]

2 mins - just grabbing a sandwich.

[olive basin]

@severe halo @heady mulch

This is the elecrow promicro

Now I'm doubting myself on pcb design

[olive basin]

i think ill get the printer later, ill buy an oscilloscope 😅

also logic analyzer would be nice too

[vague blade]

if you just need like low speed bus pirate level functionality, https://github.com/dotcypress/ula

rp2040 absolutely slaps, so much cool stuff they can do

[olive basin]

if it can capture spi etc we gud xd

[vague blade]

It says it'll do 100 MHz sampling so, it should

[severe halo]

something doesnt feel right here

I get that LEDs blinks all at the same time

but it did cost me viewing the video like 5 times

BAT and VCC are perfectly visible, the GPIOs ones seems too dim for my eye

[olive basin]

they are dim yes

i have some from the 50 batch

well the few i tested

[severe halo]

to me all leds are equally powered

[olive basin]

after i flashed the meshtastic generic bootloader they became dim

with the factory bootloader they were bright

so could it be the bootloader?

[severe halo]

gpio should be 3v

use a multimeter, see how much voltage do you get on gpio when 'lit'

[olive basin]

i'm gonna have to do that tomorrow tho 😅

[severe halo]

if its too dim, like 1.5v or 1v... then it could be that radio is not getting ones and zeroes

[olive basin]

but yea the once i bought were bright untill i updated the firmware

[severe halo]

I dont know if bootloader has something to do. In any case, flashing the adafruit version is free

[olive basin]

will try doing that too

[severe halo]

please, before flashing, first measure the voltage level

I'm really curious about that

[olive basin]

https://github.com/gusmanb/logicanalyzer 🤔

[vague blade]

too professional, needs to be made from random parts you have in your drawers

[olive basin]

u dont need the pcb 🤣

24 channels is cool

not like i need em lol

[vague blade]

oo, I didn't know it could run standalone on just a pico, I thought it needed the other stuff

sweet then

[olive basin]

haha no its just pico too

[vague blade]

Yeah just reading here now, that's awesome

[olive basin]

tho it prob would make it better with the pcb xd

dammm... aparently u can chain these to get 120 channels 🤣

[vague blade]

yeah some people really cooked with these boards 😅

the PIO can do stuff that's like, impossible on other mcus, it's basically a really really shitty fpga

[vague blade]

as long as whatever you're analyzing can be transmitted over random lengths of wire I don't think no pcb will be a problem haha

[olive basin]

yea xd

[vague blade]

Very cool for stacking them though

[heady mulch]

Try flashing back to the nicenano bootloader

[olive basin]

yea i will

if its the bootloader then gotta flag it as an issue haha

[severe halo]

I’m unsure about the bootloader thing

The bootloader was writen using swd, right?

[olive basin]

yea

[severe halo]

It could be some default option on fuses on your programmer

[olive basin]

🤔

[severe halo]

Im not sure because I dont know the nrf52840

Unsure which option would cause this

But being a different bootloader burning method than uf2 it could be it changed sonething in addition of the bootlader sector

[heady mulch]

Does the blinky sketch enable the 3v3 pin?

[olive basin]

every pin

[heady mulch]

No, I mean there's pi 0.13 that controls the ldo

[olive basin]

lemme check

cuz i do remember addind everything

[severe halo]

Aw fuck. Now that you mention that ai just found this

[olive basin]

haha

where did that go

[severe halo]

Is missing in this video too 😓

[olive basin]

i see

thats the charger i think since u dont have the blue led on

[severe halo]

Gonna find that board

[olive basin]

https://zipline.valzzu.xyz/u/0O3WH1.png

[severe halo]

Definetly fell at some point

[olive basin]

💀

some caps/resistors too

[severe halo]

Im prettu sure it wasnt me

[olive basin]

it could have come like that rly

[severe halo]

I took this picture just after opening the bags

I made sure Inside the bags there were only pins

BUT that board tested fine

[olive basin]

it most likely was the battery charger

[severe halo]

Chinesee doing chinesee things

[olive basin]

if u plug usb in on this one and another one what is the difference

[severe halo]

Btw these 4 pads are for the voltage divider to measure battery. Found that looking for the promicro schematic

[olive basin]

hmmmm

[severe halo]

Those fuckers put the voltaje divider there, just saving the resistors

[olive basin]

what pin does it go?

[vague blade]

P0.04 if they just copied nrfmicro (which it looks like they did) https://github.com/joric/nrfmicro

[severe halo]

This

Dead unused gpio

[vague blade]

my eyes

[severe halo]

Thats the best I can do

[vague blade]

0.04 is one of the analog inputs, the default diy promicro firmware uses it as well for vdiv

[olive basin]

promicro variant uses pin 0.31

[vague blade]

oh you're right

well, it's another one of the analog inputs lol

[severe halo]

I dont find anymore references to tag 004

[olive basin]

why didnt they just fill it 😅 would not have costed much lol

[vague blade]

from the nrfmicro files, looks to be the same

[severe halo]

And 0.31 would be free

[olive basin]

yea

xd

[vague blade]

damn I don't think I have anything the right value that size

[severe halo]

[olive basin]

indeed

[olive basin]

2:3 iirc or was it 3:2 🤣

[vague blade]

yeah idk if I have anything in the high kohm/megohm range though in 0603

[olive basin]

look at the default promicro variant

theres a pic of a divider

[vague blade]

closest I've got is 470k/680k, slightly wrong ratio, but they'll fit lol

[olive basin]

i mean u can just adjust the adc overide to adjust it

[vague blade]

oh. no they won't 🫠 those are not 0603

they are on the original pcb layout, on this they're 0201

[olive basin]

haha

[vague blade]

not that hard to do with a hotplate though

one good thing about 0201, they're soooooo cheap

[olive basin]

resistors are cheap xd

[vague blade]

tiny I guess

[olive basin]

the smaller it is

for some reason

[vague blade]

I mean yeah but even compared to other resistors they're like extra cheap

I guess less ceramic, doesn't cost as much

gotta wonder if they're getting close to just what it costs to put something tape lol

[olive basin]

🤷‍♀️

[vague blade]

but yeah the pads got pasted so just throw some paste flux on, verrrrrrry carefully position them, reflow the board

[olive basin]

hah ayea

[vague blade]

Hardly worth the effort but if someone needed the extra analog input for something 😛

[olive basin]

😅

[severe halo]

Would been easier if those freaks used the pick and place to place this damn resistors..

😅

[olive basin]

indeed

[olive basin]

its not too expensive to get 5 assembled 🤣 but tbh 2 prob would be enough lol

https://zipline.valzzu.xyz/u/NEgTYb.png

i had to convert the pcbway bom to jlc 🤣

https://zipline.valzzu.xyz/u/28DXGD.png
https://zipline.valzzu.xyz/u/WKy3oT.png

🤣

i tought the difference would be bigger xd

[vague blade]

😭 it's like 4 parts you do not need assembly

5 I guess

*6/7

[olive basin]

Yea i know xd

[vague blade]

Tbh I've never ordered assembly before, the last time I was messing with electronics OSHpark was still dominant lol, very much the "solder it yourself dummy" era

[severe halo]

group buy? wouldnt mind to have one

[olive basin]

There were some caps, resistors, headers, logic level shifter

Not a lot xd

[vague blade]

Basically a smd practice board

[olive basin]

0402 or bigger

Well

Caps and resistors 0402 xd

Rest are way bigger

[olive basin]

I mean i wouldn't mind

[vague blade]

could edit the footprint, it's kicad so not too hard https://github.com/gusmanb/logicanalyzer/tree/master/Electronics/LogicAnalyzer/LogicAnalyzerV2/designs/jitx-design/kicad

0402 is doable by hand though

[olive basin]

Didn't search good enough lol

[olive basin]

Indeed

[vague blade]

I wouldn't want to do a lot of them, but with that much space around them on the board it's not bad

[olive basin]

Hotplate 🙃

[vague blade]

I love how they did impedance matching on the level shifter lines 😂

It certainly doesn't hurt, but 100 MHz

and like they're just routed however rpi foundation felt like that day anyway once they hit the pico

[olive basin]

Can do 400

[olive basin]

Tho source ur own pico 🤣

[severe halo]

100 seems a lot to me

I remember when I studied electronics, our osciloscopes were still tube ones, and they did max 20 Mhz

[olive basin]

I'll have to check tomorrow what lcsc quotes on the components including shipping

[severe halo]

kids nowadays are too spoiled

[olive basin]

Haha

[vague blade]

the scope you learned on can be outpaced by like 10 cent microcontrollers now though 💀

[olive basin]

Ahahhaha

[severe halo]

definetly

our bench computers were PIII 700Mhz at most

my watch has more cpu, ram and disk than those

[vague blade]

it's crazy how cheap some of the really basic scuffed mcus are, I don't envy anyone writing firmware for them, but literally 10 cents on tape

[olive basin]

Yeaa

[vague blade]

When I was last into things, atmega arduino clones were like very hit or miss if they'd even work, now it's like "here's wifi and bluetooth oh and it runs on batteries, that'll be $3"

[olive basin]

Haha

[severe halo]

atmega werent known when I started..PICs were the kings

used to get free paid tv

xD

[vague blade]

I remember the pic, they were still around when I started, though losing relevance

[severe halo]

remember that microchip (makers of pics) bought atmel.. xD

[vague blade]

damn I never saw that, at least they kept making atmel's stuff

[severe halo]

pics were the kings for everything, is just that atmel was lucky to be choosen by arduino

[vague blade]

I think it was because the atmega could do serial dfu and pics needed a pickit

[severe halo]

what boosted atmel was the ease at programming from both thearduino IDE and the bootlader, wereas to do something at a PIC you needed special microship IDE,a lot of asm and a special hardware programmer

[vague blade]

oh yeah hadn't thought about the programming environment around it too, I've never coded for a pic

I used to have a pickit, long long ago

[severe halo]

that was modern lol

[vague blade]

oh actually yeah that one's newer, I think I had a 2? was around like 2007-08

[severe halo]

this is the one I had

[vague blade]

lol omg

[severe halo]

I also had cheapo RS232 programmers lkike this one

long gone are those days... now microconcrollers have embebed usb and lof of fancy stuff

microchip wasnt interested in the hobbyist market but learnt the hardway from atmel that, if hobbyist doesnt make money directly, you just need a little of them working on real things to suggest to use an atmel that they knew from they hobby on real production environment, ordering thousands of them

so microchip had to buy atmel 10 years ago xDDD

[vague blade]

Not to mention cornering the hobby market gets you a ton of exposure in education, I'm sure a lot of people learned on Atmel 😅

[severe halo]

yeah, pretty much like rpis

they were originally a design to supply cheap $30 computers to education...

then you see lots of massive projects made with them

[vague blade]

Yeah and built into everything, why design your own sbc when you can use a $30 education board
oh crap they ran out of them

[severe halo]

now rpis costs $100

xD

[vague blade]

inflation 💸

[olive basin]

Guess what voltage it was 🙃

[heady mulch]

3

[olive basin]

Nope

Less

[heady mulch]

1.8

[olive basin]

Close but no

[heady mulch]

1.5

[olive basin]

Bit morr

About 1.6v 😅

Ill have to flash the adafruit bootloader after foods done

[olive basin]

its the god dam bootloader

hey @spiral panther the generic booloader seems to do something weird.

its making the pins output about 1.6V rather than 3.3V

Looks way better now

[olive basin]

This is with the generic bootloader

vola

[spiral panther]

Oh ok, it seems that board have a specific 3V3 setting here - https://github.com/adafruit/Adafruit_nRF52_Bootloader/blob/6a9a6a3e6d0f86918e9286188426a279976645bd/src/boards/nice_nano/board.h#L30C19-L30C49

which wont be in the generic bootloader, but could at some stage see if adding it wount effect any board

[olive basin]

thats interesting since ive used it before on promicros 😅

and it has worked

[spiral panther]

yes, i only see it now. not this issue myself either yet

https://github.com/joric/nrfmicro/wiki/Pinout/55ddd87a96557ab5e8e8486abf6ecf4ccf1f1f4c

but i recall some metnion of it before with the PCA10059 dongle that could get stuck in 1.8v mode

https://github.com/adafruit/Adafruit_nRF52_Bootloader/issues/48

[olive basin]

hmmmm

[spiral panther]

with that donlge you had to cut some traces to use external 3v3

[olive basin]

so something has happened between my promicro batches 🤔

[spiral panther]

oh

well here another mention of issues when is below 3.0v

https://github.com/adafruit/circuitpython/issues/6501

[olive basin]

awesome 😅

[spiral panther]

and im sure i came accross a command that can erase that section i think at some stage

say you set it wrong for example

[olive basin]

yeaaa

[spiral panther]

yes, i for example used openocd to read a nrf52 for backup

two flash banks exist

flash banks
#0 : nrf52.flash (nrf5) at 0x00000000, size 0x00000000, buswidth 1, chipwidth 1
#1 : nrf52.uicr (nrf5) at 0x10001000, size 0x00000000, buswidth 1, chipwidth 1

nrf52.uicr

4096 bytes only contain these registers

[olive basin]

hmmm

[spiral panther]

so you could compare

and you can write that uicr section back also

flash write_bank 1 flash-bank1.bin

[olive basin]

i only have esp32 nrf52 swd programmer 😅

it can dumb flash

1KB file

so idk if its correct size

[olive basin]

there we go

[severe halo]

so, mistery solved ? elecrow was instructed to flash the meshtastic bootloader?

sorry, been all day out in office event at nature

[olive basin]

the meshtastic generic bootloader is the issue

i gave then the adafruit bootloader

[severe halo]

I mean, in the original deployment, I was asking if you instructed electro to use meshtastic bootloader

before all this

[olive basin]

ah yes

[spiral panther]

the generic bootloaders were created long before it was known how board design power pins were used, either now add it to the bootloader or use nrfprog to fix

[olive basin]

ill just use the adafruit one 😅

also elecrow so yea

[severe halo]

This would have been hard to find without a nice promicro tester! Get yours now!

[olive basin]

Well i would have found that after i got my oscilloscope xd

[olive basin]

i cant import this to fusion for some reason, the fusion file

[olive basin]

nope

just fails lol

[vague blade]

doesn't give an error? :S

[olive basin]

no clear error either

[vague blade]

wtf?

[olive basin]

hold on

https://zipline.valzzu.xyz/u/elwyx6.png

like what failed

[vague blade]

what~1

[olive basin]

yeaaa

[vague blade]

Give this a try, downloaded it from Fusion Hub

[olive basin]

nope 🤔

google time xd

[vague blade]

🤷‍♂️

if you just want to print it as is, that .step file will work in your slicer

[olive basin]

i know 😅 tho the button was in the way lol.
fusion did accept the step file and i could remove the button so we good

[vague blade]

oh, right-click in the slicer and split to objects

[olive basin]

oh yea

thats a thing lol

[vague blade]

😅 sorry I forget sometimes people don't use my workflow

I always export the whole thing as a step then split and arrange the parts

[olive basin]

i dont need to separate stuff usually so i dont remember

[vague blade]

I like doing it this way so if all someone has is the step file in the future you can still see how everything goes together, not really important here but for bigger designs haha

[olive basin]

makes sense

https://oe.ink/l/Fh49pi19Ym
lets see how this goes

[vague blade]

printer go brr

oh god that's still bowden extruder

at least you didn't die on the glass bed hill

[olive basin]

hahahah

this was my first printer 😅

paid like 200€ few years ago

will be getting a new one eventually

well doesent run stock old crap firmware anymore tho xd

[vague blade]

yeah that's moving a lot faster than stock heh

Hey if it works why not

[olive basin]

oh ye alol

klipper go brr

[vague blade]

I never knew the pain of marlin 🙏 these v3 corexz printers were my first

I do wish I had something enclosed though for asa

[olive basin]

marlin sucks ass

cant edit config without recompiling and flashing

[vague blade]

awful

[olive basin]

indeed

[vague blade]

sounds like a good way to burn out the flash on your control board lol

[olive basin]

hahaha

hotend is still stock 😅

i think thats limiting my petg speeds most likely

[vague blade]

Yeah it could for sure, petg likes a long melt zone

Try rapid petg from elegoo, I bet it'd run good at like, the speeds you're used to lol

It's really cheap over here too, usually the same price/close as the cheapest regular petg on amazon

[olive basin]

printing petg takes foreveer 😅

https://zipline.valzzu.xyz/u/XAF7Fm.png

hahhahaha

going way faster than that lol

[vague blade]

😅

[olive basin]

addjldsksdj

takes me almost 2 hours

pla

i could prob go faster but then i run into every limit 🤣

[vague blade]

If the printer can't launch itself off the table, are you even printing?

[olive basin]

also the belts are starting to show their age xd

[vague blade]

I have a brand new belt for the corexz assembly on mine, in case it ever dies, but I REALLY hope it doesn't

it's threaded around like 20 different pulleys

[olive basin]

ahahah yeaaa

thats corexy for u

[vague blade]

creality: "hey everyone likes corexy, let's just turn one sideways and tell people it's good"

😩 I guess it does have some advantages, Z movements are realllly precise, and fast

it's so fast moving in Z, to home, it just sends the gantry all the way to the top and back down lol

[olive basin]

hahahahaha

[vague blade]

It's good for printing really low layer height stuff, hueforges especially

[olive basin]

https://all3dp.com/2/anycubic-mega-zero-upgrades-mods/ this does have direct extruder upgared 😅

and some others

[vague blade]

hahahaha

the amount of weight that adds to the top of the toolhead would probably add so much vibration you wouldn't realize speed gains

[olive basin]

yeaaaa

xd

i think the best would be to upgrade the hotend

but idk

i guess if im rly bored i could just try pushing this printer as far as it goes 🤣

petg is no go but pla

[vague blade]

Just make sure you're not getting to a point where it'd be cheaper/worth it to just buy a new one 😅

Seen quite a few riced out ender 3s that should've just been retired

I mean I'm all for running them until they won't go no mo as secondary/slower printers

[olive basin]

i mean in terms of what this can give as is

i will buy a new printer thats for sure xd

[vague blade]

Hotend's cheap at least, I think triangle lab makes some nice ones on aliexpress, idk if they have 'em for old anycubic models though

they have all the old creality ones covered

[olive basin]

i mean no hotend prob fits on that 🤣

would still need custom mounting etc

[vague blade]

https://www.aliexpress.com/item/1005006001898569.html 😅

you'd need to change your probe mount to be lower but I think that bolts onto the stock toolhead

[olive basin]

the last one yes that is for mega zero 2 but thats the stock one xd

[vague blade]

oh, yeah oof that heat block is tiny

I just assumed it was like their volcano hotend but no :((

[olive basin]

haha

nope

[olive basin]

i think ill just stick to the stock one

too much to change to get a new one

[vague blade]

yeah fair that sounds like a hassle

[olive basin]

yeaa

mmmmm

pink

about 15kg of b stock

99€

[vague blade]

none of those kingroon sellers ship here 😭

[olive basin]

https://3do.dk/en/58-b-stock?SubmitCurrency=1&id_currency=3&page=2

[vague blade]

oo

I mean still won't ship here but cool

[olive basin]

hahaha yea

might at sompoint order a box xd

like 6,6€ a roll 😅

[vague blade]

This just finished with JAYO PETG, I couldn't find "alley cat remix made of random garbage" so I made my own 😭

I might redo it with the pwrd logo filled in white

[cunning breach]

Whats wrong with it? Looks fine to me

[vague blade]

The crimes are inside, the case actually turned out nice I think

my faketec boards were inbound when the mail strike happened 😭

[olive basin]

oof

if it works it works 🤣

[cunning breach]

Yeah that's no fun... I have a feeling its gonna be a while too... I actually forget how long the last one was

[vague blade]

Nearly 2 months 💀 and two of my parcels just got entirely lost

[olive basin]

oooof

[cunning breach]

Honestly, I only use snail mail for bills, just so I can shove them in my closet for 10 years 😂

[vague blade]

I don't even do that, PDF everything pls

I'd be fine though with once a week mail delivery, who the hell needs letter mail daily (other than some businesses maybe, but everyone??)

[cunning breach]

I think it's funny that they say they're broke, yet they get paid to put flyers in people's mailboxes

[vague blade]

I guess the flyer game isn't as profitable anymore either, e-flyers

All the unsolicited mail we get is either "oh it's the weekly <store that always does it> flyer" or "wtf is this and why was it sent to me"

[cunning breach]

My neighbour across the hall still gets the newspaper every day, but she's gotta be like 70 or 80, so no computer literacy

[vague blade]

we don't even have a newspaper here anymore, RIP The Telegram

I was looking for one a few weeks ago to use for cleaning windows, but nada 😭

[cunning breach]

The only time I really want flyers is for packing material 😂

[vague blade]

I have a giant roll of craft paper for that but it's a bit too thick for window cleaning 😂

[olive basin]

i got 4 in stock again 😅
https://www.etsy.com/fi-en/listing/4323773321/washtastic-nrf52-powered-and-solar-ready

[severe halo]

This is just when I swaped my 3 old month geeetech for prusa mk3s

[olive basin]

Need to drill the pin holes 🤣

[vague blade]

yay, at least the board lines up right

[olive basin]

Also had to do some sand paper action 😅

[vague blade]

Stupid grabcad, the pin header model I was using was wrong, I noticed it a while ago but I thought it was close enough

I'll make those slots longer on the ends

[olive basin]

haha

also didnt help i had cut these headers from a longer piece

[vague blade]

The model I had, instead of actually doing 100 mil pitch, they're 0.2mm pitch

which .. isn't a thing

so they're just too short

[olive basin]

lol

now to figure where i need to drill to make a hole 🤣

[vague blade]

hey you can kinda see where the holes are!

[olive basin]

also the board is kinda press fit 😅 doesent come out if i shake it

[vague blade]

0.1mm tolerance might've been a little close heh, that's alright, I'll make notes and adjust it later

[olive basin]

for my printer 🤣

[vague blade]

👌

[olive basin]

u get the idea if 32.5mm hole doesent fit 32mm pipe 🤣

well it was petg anyway

[vague blade]

Yeah that's pretty way off lol

Did you calibrate flow ratio for that filament?

[olive basin]

😅

pla yes

[vague blade]

You should for every new roll you use, it's worth it if you need to print tiny holes

or just be accurate much at all

[olive basin]

well inside klipper i did

but did nothing for slicer

[vague blade]

you don't set flow ratio in klipper 🤔 you mean extruder distance?

that shouldn't change

[olive basin]

idk

dont remember

its been a while

[vague blade]

flow ratio is a setting in the slicer, in your filament settings

[olive basin]

maybe i did change that

[vague blade]

some of the fancy new printers just do it automatically (to make me jealous)

[olive basin]

......

[vague blade]

2mm is fine, you don't really need them to be snug in there, it's just so you can't bend them enough to break them

plus that'll account for any misalignment from (I assume) hand drilling

[olive basin]

haha yes

also need to make the holes for the screws xd

[vague blade]

oh yeah those are like, modelled with m2 threads

no shot those came out right

[olive basin]

i mean on the pcb 🤣

[vague blade]

ohh right

[olive basin]

screw holes in the print are fine

[vague blade]

woah really? I thought they'd be too tiny

[olive basin]

nope

[vague blade]

anxiously awaits pin test

[olive basin]

Now we wait for pins

[severe halo]

wait until I have my boards

dont take Iris printer as a standard...

[severe halo]

you need thinner drill bits..

[olive basin]

1.5mm bit was missing 😅

My pins are not in china anymore

They are somewhere in eu

[severe halo]

also my jlc boards and tdeck, are already in spain

1 to 3 days to have them

[olive basin]

Niceee

Maybe if all goes well ill have them next week

[severe halo]

we just got a civil protection emergency broadcast on all phones about new storming hitting east spain tomorrow

[olive basin]

Dammmm

Never gotten anything like that and hopefully will not

[severe halo]

11 months have passed since the famous valencia flooding

schools are not opening

so people cant go work either

[olive basin]

I mean isn't that good?

[severe halo]

nope... schools closing should be good, but work places and offices are not closing

so, what do I do with my kids ?

[olive basin]

Oooooh

Yea that's not good

[severe halo]

who's taking care of them? best cases are to work from home (which I usually can do)

[olive basin]

But most can't

[severe halo]

but tomorrow I have to attend a venue as an IT support technician

[olive basin]

Oof

[severe halo]

the venue is not yet to be closed due to weather soo... who knows what's going to happen

chaos in any case

[olive basin]

Ur not the only one most likely

[vague blade]

yikes, stay safe, if it's anything like the typhoon that hit asia uhh hope you have a boat

[vague blade]

Had to make it smaller 😅

[olive basin]

haha

[olive basin]

Elecrow was able to get the boards to talk with the lora module

[modern raft]

so question, what are the advantages of a 1W? or lower W? i saw someone promoting a 2W as well.

[fossil quest]

1W/30dBm is higher output power (more than legal in some places -- it's the limit for the US, but e.g. EU_868 isn't supposed to go above 0.5W/27dBm. most radios you can buy are 0.15W/22dBm max. it won't always help you but it can get a bit more transmit range and a bit more receive sensitivity

[olive basin]

One thing about this is u could possibly have a longer coax run

And the u could compensate for the loss by increasing tx power

Yea we in eu arent supposed to go above 500mE erp

[olive basin]

@heady mulch

Heres ur tx

[heady mulch]

Which one is which?

[olive basin]

yellow is battery

[heady mulch]

0.3v drop

Blue only drops 0.1v

Moar capacitor!

[olive basin]

hahaha

its not that bad right

[small blaze]

Why do they do that?

[olive basin]

huh?

wdym?

[small blaze]

Why do they Need to do that

Sounds interesting but I have no context

[olive basin]

i mean they can test if stuff work

[small blaze]

And you pay them to do that?

[olive basin]

and im selling my boards through them so i wanted them to make sure that customers get working boards

[olive basin]

nope

[small blaze]

Oh so they Test the modules before selling

[olive basin]

the hole board

solar etc

[small blaze]

Pretty cool

I wanna add a solarpanel to my nodes too

For some more time online

[severe halo]

Pretty happy with the outcome

Boards came in today btw xD

[olive basin]

nice

how does that custom silkscreen tag work?

like the serial number

[severe halo]

in the pcb section theres a preconfigured tag with the order number

I though that was horrible

so I went to deactivate it, and found you can put a small string (6 char long max) and a numbre from i to j

from 1 to 5 for example

if you make a second batch you can put 6 to 10

in any case the position has to be random if you want to produce the boards as quick as possible and dont want to talk with them

[olive basin]

oh coool

[severe halo]

select 2d barcode

it will pop up a window

[olive basin]

ooo

that rly is cool

way better than the normal order number

[severe halo]

yup

the only board with order number I have from jlc is the first one, the 30x promicros xD

[olive basin]

every board in that sense is unique

[severe halo]

everything else I stoped and took my time for every option trying to understand their meanings and how would affect the order and if I need it

[severe halo]

yeah, helps to identify them, and batches

[olive basin]

yea

[severe halo]

btw the pcb fits reeealy thight

I dont even need the screws

Is a really cool gadget, pretty happy with the final result, really really cool. Nice board design and nice case design. Good work everyone!

[olive basin]

😅

thx

[severe halo]

the reset button helps to put it in dfu quicky

love it

[olive basin]

😅

it is gonna save alot of time

[severe halo]

to me at least haha

[olive basin]

in the sense that u dont need to desolder a promicro when it doesent work

for sure this ads extra steps but its worth it

[silver crest]

@olive basin for V3.1 of the washtastic board which resistors did you use? 330k and 1M? trying to get the ADC right https://github.com/valzzu/meshtastic-pcbs/blob/main/WashTastic/pics/Schematic_1W-meshtastic-node.png

[heady mulch]

It's 2x 330k on top of a 1M resistor

[silver crest]

is there a formula to calulcate the adc from that?

I cant find it anywhere

[silver crest]

thats what i thought thanks

[heady mulch]

It's the same as the standard promicro firmware

[silver crest]

ill just go find that number in the meshtastic github repo then thanks

[heady mulch]

I think it's 1.73, which is 1.66 plus a bit for luck

[silver crest]

yeah thats what it looks like

https://github.com/meshtastic/firmware/blob/develop/variants/nrf52840/diy/nrf52_promicro_diy_tcxo/variant.h

[heady mulch]

And based on ((R1+r2)/R1)-1

[silver crest]

perf thats what i was looking for thanks a ton

[olive basin]

None of the pins are straight 🤣

[cunning breach]

https://tenor.com/view/wow-weird-skeptical-worried-disgusted-gif-7566655199243753873

[small blaze]

My advice is Next time solder them straight

Just 3d printed my node

So i Can Test my cases befor the PCB arrives

[heady mulch]

https://tenor.com/view/shh-shush-be-quiet-loki-marvel-gif-22024065

[heady mulch]

You bought spare PCBs as well, didn't you?

Remember when I said you should solder 2 in a stack?

Or just a bit of perf board to stabilise them.

[olive basin]

I mean i have 4 not used xd

[heady mulch]

Just use a bit of proto board.

Pretend you're @minor shoal

They know how to make do with scraps 😉

[olive basin]

also didnt help that mu printer didnt make the holes the correct size

that would have helped too

[severe halo]

This seems more expensive than having a real one

[small blaze]

I cant wait for the PCB

I have to Test my case

[severe halo]

or having drilled the holes with the proper bit

[olive basin]

didnt have smaller one

[severe halo]

I mean, there were a lot of things that could went wrong that went wrong haha

toms idea is good, just stack two of them

with some separation

puting something between them like cut protoboards to ensure both are properly parallel

[heady mulch]

It's not my idea, btw

[severe halo]

toms stolen idea is gut

[heady mulch]

I'm just good at remembering known solutions to problems

[olive basin]

i mean yea but there isnt room in that 3d print

and the idea was that the print did it

but my printer bad

[severe halo]

dont 3d print, make a naked board

naked is sexy

[minor shoal]

they? I am big, but not that big :D

reminds me of the joke about the scale that shows the message "one by one, please".

[olive basin]

https://www.reddit.com/r/3Dprinting/s/6sp9vELAvd

Hmmm

I was drying at 60c 🤔

[severe halo]

pla should dry not more than 60C

any bit more will melt the full spool

the post is about petg

[olive basin]

yes

and i was talking about petg

[vague blade]

petg will dry at 60C it's just ass slow, my dryer goes up to about 55C and it takes a full day to get a noticeable difference 😭

[olive basin]

guess ill leave it to dry for like 2 days 🤣

cuz work on monday

[proud cargo]

I love the Polymaker approach to drying but I wish it was both more power and less loud

Give me a 120mm Noctua pushing 200W of dryer power on max

[heady mulch]

But how would you know it's on?

[proud cargo]

I don't want to know it's on, ideally

Except by the hot air

And dry filament

[heady mulch]

🤪

Nah, it's like a Harley.

The noise is the point

Or something.

[cunning breach]

Funny you say that, I wanted to buy an electric motorcycle, but the only ones they sell are crotch rocket style... so I actually thought of buying a hog with saddle bags and granny bars and electrify it so I don't have to lean over all the time 😂

[severe halo]

@heady mulch sorry to bother you here.. I found this schematic and was wondering about the ht-ra62/ra-01sh connections. Is it right to leave rxen and txen unconnected?

[heady mulch]

Yes, switching is internal.

[severe halo]

Right, I found this in the ra-01sh schematic

Didnt knew those two were internally connected to dio2

Cant find a ht-ra62 schematic but is supposed to be the same, right?

Never mind, it wasnt in the datasheet but is as a separe file. Same implementation..

So then, why is it necesary to connect rx_en to promicro 017?

[heady mulch]

For the RA-* boards, it isn't

for the E22 boards, maybe.

For the WIO sx1262, it is required

[severe halo]

For the e22 it is for sure required. I remember testing promicros in wastashtic boards without conecting 017 and they didnt work. I didnt knew that those were internally conected on ht-ra62/ra-01sh boards. Thanks!

[olive basin]

I rly do need to get e22p modules

[amber depot]

are you 915 or 868

[olive basin]

868

[amber depot]

shit

ok lmao

[olive basin]

Haha

[amber depot]

i was gonna throw you my wrong modules

just into the air really hard

[olive basin]

Tbh, how mad would they perform rly

Since so far we have used 900 modules

[severe halo]

They have saw filters

They would not perform

[severe halo]

this needs the E22P-XXXM30S :p

[olive basin]

Oh yeaaaa.... True

[proud cargo]

New month so it's time to ask if Washtastic is generally available anywhere

[olive basin]

i have 4 in stock in EU

and i hope elecrow will have soon

[proud cargo]

You had me going with "EL" as a country code

Greece, apparently.

[olive basin]

haha

[proud cargo]

I hope the Elecrow thing works out, that'd be great

[olive basin]

yeaa

[heady mulch]

https://tenor.com/view/brooklyn-nine-nine-gina-linetti-oh-honey-were-well-into-october-october-into-october-gif-18739065

Perfect gif 😉

[proud cargo]

It hurts.

[olive basin]

China had their national holiday so yea

[amber depot]

if you order aliexpress right before new years they auto cancel your whole order and you get a $2 coupon for every item they cancel

ask me how i know

lmao

i had 60 coupons

except one per order and they wouldnt combine it

[olive basin]

Lol

[amber depot]

monsters

[heady mulch]

#thatsthefeature

[vague blade]

Works if you order right before a mail strike too, and they don't cancel so it still shows up eventually lol. Harder to time though.

[olive basin]

Elecrow apparently is ready to ship WashTastics

[proud cargo]

Is this chart still accurate? IIRC there was a PR around to make Meshtastic PA-aware

[olive basin]

well..... if u use promicro firmware yes then its correct

but if u use the washtastic firmware then its not

[severe halo]

washtastic variant is already in the main line code, just not compiled, but you can compile it by yourself

[olive basin]

ye

[severe halo]

As Iris noted, the TX power table is only valid if using the nRF52 Promicro diy firmware. If using washtastic firmware then the configured value is the output value

[olive basin]

somebody fucking bought 5 washtastics

i just saw the email and i was like what the fuck 😅

idk

what am i supposed to feel 😅

i know ppl have been asking for these but holy shit

[severe halo]

think you got to pay half osciloscope

[proud cargo]

That was my group

[olive basin]

yeaaa.... 😅

thx xd

[proud cargo]

We wanted four and then were like "Eh, fifth one means they're all cheaper, let's goooo"

[olive basin]

hahahaha

[proud cargo]

FWIW, I think their description could use more details. It's not clear that it has MPPT unless you're staring at the board and recognize the dip switch layout or know what a CN3791 is

I'm surprised they're not recommending solar panels with them, too

[olive basin]

thats my descriptionm 😅

[proud cargo]

Ah. Well, I could put together some editing/proofing feedback if it's welcomed, and if it's not, that's okay too

[olive basin]

i just noticed a typo

[olive basin]

everything is welcome 😅

im not the best at writing

and i think i did use AI too bit xd

https://zipline.valzzu.xyz/u/mNjWiu.png

i dont think thats correct 🤣

[proud cargo]

CN3791?

[olive basin]

ye xd

[marble loom]

Hi, mystery customer here 👋

[proud cargo]

Fixes:

• Update charger module to correct identifier
• "Watt" is not capitalized when spelled out, only when used as a symbol: 1W vs 1 watt.
• Hyphens (-) between the number and the unit (1-watt) are only called for if they're used before a noun that they're modifying, so "maximum output power of 1-Watt" should lose its hyphen and capitalization.
• "low power operation" should have a hyphen: "low-power operation"
• In paragraph two, consider expanding "nRF52 MCU" to "nRF52840 MCU".
• It's not clear from just the listing that the board supports MPPT.
• No part of the listing specifies that it's a LoRa radio unless you already know that Meshtastic uses LoRa.
• The frequency isn't explicitly listed unless you already know that the 900M in the Ebyte module name specifies its frequency.

Suggestions:

• It would be great to have side views of the board that show ports and buttons.
• The dimensions of the board, mounting holes, buttons, and ports aren't displayed or linked anywhere. "PCB files are on GitHub"
• The title says "Solar-ready", but the description feels like it could use a line like "Ideal for solar-powered mesh radio nodes running Meshtastic, MeshCore, Reticulum, and other 900MHz mesh radio projects."
• A lot of information in the listing is contained in the annotated diagram of the PCB. This should all be in text that is searchable so someone can quickly discover that it has multiple I2C interfaces, buttons, a power switch, antenna port, etc. This should help the board get found by prospective buyers, as well as help people have a positive experience when ordering it.
• A table that lists out (and links to Elecrow's pages for?) each of the connectors the board uses: QWIIC, battery, solar
• If it's appropriate to throw the Meshtastic logo in here somewhere, I would.
• Mention what features we get out of the boards you're namedropping. Ex: Does the XB8089D0 give thermal cutoff?

• The Promicro board usually has a maximum charge current of 100mA IIRC, so it may be good to specifically call out this board's max charge current/wattage

Have you considered making ones with other Ebyte modules available? I'm thinking the 2W one or a 400MHz one

[olive basin]

400MHz should work if it has the same pins and uses 5V for power

2W maybe works but not sure if the boost converter can supply enough current

[proud cargo]

I hope the rest of that is comprehensible for someone who doesn't live in my head

[olive basin]

WashTastic Mesh Radio Node - Solar-Ready LoRa Solution
The WashTastic mesh radio node is designed for Meshtastic, a LoRa-based mesh networking platform, but adapts seamlessly to other 900 MHz (868MHz) mesh radio projects like MeshCore and Reticulum. It combines a powerful 1-watt E22-900M30S LoRa radio module with an nRF52840 MCU for efficient, low-power operation, making it ideal for off-grid and solar-powered applications.
Key Features

LoRa Radio Module: The E22-900M30S operates at 900 MHz (868MHz) with a maximum power output of 1 watt, offering extended range for reliable communication in challenging environments. Note: This power level exceeds legal limits in some regions, such as Europe. Always check and comply with local regulations.
Low-Power MCU: The nRF52840 microcontroller ensures ultra-low-power operation, perfect for energy-constrained, off-grid projects.
Solar and Battery Management: Equipped with a CN3791-based charger supporting Maximum Power Point Tracking (MPPT) for efficient charging from solar panels or any 5-28V power source. The XB8089D chip provides battery protection, including overcharge, over-discharge, and thermal cutoff for safe, long-term operation.
Maximum Charge Current: Supports up to 2A charging current, significantly higher than the 100mA typical, max 300mA, of ProMicro boards, enabling faster and more efficient battery charging.
Interfaces and Connectivity: Includes multiple I2C interfaces (via QWIIC connectors), a U.FL antenna port, user-programmable button, and a power switch for versatile control and integration.
Compact Design: Measures 50mmx70mm with strategically placed mounting holes for easy installation. 

Build Your Own
The WashTastic is open-source, with PCB design files freely available on GitHub. Order your board through services like Elecrow and customize it for your project.
Connector Compatibility


Connector Type,Description,Compatible With
QWIIC,I2C interface for sensors and peripherals,"SparkFun QWIIC, STEMMA QT"
Battery,2-pin JST-PH for LiPo batteries,Standard 3.7V LiPo batteries
Solar Input,2-pin JST-PH for solar panels,5-28V solar panels or power sources


Solar-Ready: Optimized for solar-powered mesh radio nodes with MPPT for maximum energy efficiency.
Versatile Applications: Supports Meshtastic, MeshCore, Reticulum, and custom 900 MHz (868MHz) LoRa projects.
User-Friendly Design: Features a power switch, programmable buttons, and a U.FL antenna port for easy setup and operation.
Open-Source: Freely available design files empower you to modify and build your own nodes.

just threw the old description to grok and what u suggested and it gave me this.
ofc nothing perfect

[proud cargo]

It looks better to me, plus or minus some formatting and sane spacing

I didn't notice that Elecrow says they don't include import taxes in the costs. I'm very curious to see how that works out

[olive basin]

looks better in grok chat xd

[proud cargo]

Sometimes if you copy it out into something like Marktext or Obsidian, it'll retain the formatting and then paste nicely elsewhere

[olive basin]

My god I'm almost sold out 😅

Gotta manufacture more 😅

[severe halo]

only 20 available?

[heady mulch]

-# cash flow

[olive basin]

I manufactured 20 and 15 is sold according to elecrows site

[proud cargo]

I mentioned it on PugetMesh yesterday and someone was disappointed they were already sold out 🙂

[olive basin]

huh

is it rly sold out already

https://zipline.valzzu.xyz/u/dUXE9l.png

its not acording to this

[olive basin]

https://zipline.valzzu.xyz/u/YutXIq.png

thats 20 boards on jlc

tho in this version bme280 is now aht20

https://zipline.valzzu.xyz/u/STAYbx.png

this is with it shipped to me

https://zipline.valzzu.xyz/u/K2ehVK.png

and this is elecrow

without shipping and tax etc

[heady mulch]

Give them a kick.