My DIY air quality monitor system has been out of commission for a while and I couldn’t be bothered to investigate it

But

I did this weekend, though, and I think I fixed a few issues too

The raspberry pi zero in charge of storing the readings was struggling, apparently kernel panic

So I reinstalled the flash entirely from a recent image, added my tools and my app, all of which took an hour

Everything is back and I iterated a few times on the microcontroller app, and it hasn’t been smooth but it’s been better than last year

Issues as far as I could see were:

• too many WiFi thingies close together in a small room => RF interference
• the bridge node was spending too much time not reaching storage over HTTP => not getting mesh sync => nodes disconnected

So I spaced them out and I added a timed reset

Let’s see how long this lasts!

#rpizero #iot #diy_electronics #arduino #esp32 #esp8266 #sqlite #mesh #DiyAirQualityMonitor

Bought another screen and I'm waiting for it to arrive. AAAANNNNDDD It won't fit either. Why do I keep buying these displays with PCBs on the back?! The display itself fits, but the PCB messes everything up.

Wellp. Another week of mourning having to buy another one. Although I'm having fun with this project, I really need to earn more money. :)

(Maybe I can separate the display from the board...? I'd need to buy a connector...but they are cheaper... Humm...)

#diy_electronics #diy #handheld

Some more workshop work on the SDG2042X Linux GUI today (got a free Monday): Fixed 5 bugs in this round, including ARB handling on the real instrument, sweep fallback timing, preset handling, and one unsafe input-parsing corner.

I hope GUI is getting a bit less fragile / more reliable.

Blog:
https://togo-lab.io/?p=287

Gitea:
https://gitea.togo-lab.io/tgohle/0003-SDG2042X-PyQt-GUI-for-Linux

#ToGoLab #Siglent #SDG2042X #PyQt5 #Testbench #OpenSource #python #weekendProject #diy_electronics #DIY