install VS tuya-convert

The middle board looks like you might be able to use the browser based Tasmota installer https://tasmota.github.io/install/ to flash and use however you like. I'm not sure what the config would be after you flash it, though.

Web Installer is up. https://tasmota.github.io/install/.

Its not no soldering but it is low effort soldering. Pulling from a couple guides here.

Tasmota is local first.

Get a wemos D1 and a https://www.ikea.com/us/en/p/vindriktning-air-quality-sensor...

https://tasmota.github.io/install/ flash the unofficial all sensors build.

https://github.com/Hypfer/esp8266-vindriktning-particle-sens... Solder as follows GND to GND on ESP, 5V to 5V on ESP and finally the last one to D2 on the ESP.

Guides I am stealing from. https://github.com/Hypfer/esp8266-vindriktning-particle-sens... Has most of the hardware side. But its using a different software.

https://blakadder.com/vindriktning-tasmota/ is where I got most of the rest of the info but he uses a separate voltage regulator. If you use the Wemos D1 Mini you should not need that.

After that the internet has plenty of info for hooking tasmota and say home assistant together.

Tasmotizer or the Tasmota Web Installer are another couple easy-mode installers. Tasmotizer requires installation, but will allow you to upload a custom bin; not just Tasmota bins. The Tasmota Web Installer doesn't require install, but getting to HAAA will be a two step process: You'll have to upload Tasmota first, then reflash to HAAA.

I use this USB to TTL adapter, but there are tons in the ~$5-10 range that work. I'd stick to genuine FT232RL or CH340G based ones though. Most of the time, you don't even need software anymore, as you can flash straight from Chrome now.

First of all I've tried Tuya-Convert but it was never able to find the device. I've also tried TuyOTA with similar results, it just seems like it can't detect the device at all - neither in pairing mode, nor in normal operation mode.

I was about to say a similar thing. Companies closing off their devices with paywall and other closed API are calling for a hack. I found this repo on GitHub

Mit tuya-convert.

Is it possible to run custom firmware on them? Like using https://github.com/ct-Open-Source/tuya-convert (not sure if this one is compatible with the newer lamps). Or maybe something else?

If it has an ESP chip, it probably won't OTA with https://github.com/ct-Open-Source/tuya-convert since that doesn't work on recent Tuya firmware, hence the blakadder page showing manual flashing.

> They cost >2x the Meross ones. Got 2. They work so far. Crossing my fingers they're legit, though my guess is they won't last.

FYI - there are cheap Tuya devices that can be flashed with alternative firmware[1] which works locally. More generically, there a lot of ESP32-based switches that work with Tasmota open-source firmware[2]. There breadth of devices is annoying because it makes configuration difficult because because different manufacturer wire up the relays differently, so it took me trial and error to figue out which device "port" the firmware needs to toggle to turn the switch on/off

1. https://github.com/ct-Open-Source/tuya-convert

2. https://github.com/tasmota

If you're already comfortable with Docker, setting up ESPHome and Home Assistant should be fairly easy for you, and will unlock lots of options. Depending on the hardware revision of your smartbubls, you might even be able to use Tuya-Convert to install ESPHome or Tasmota on your existing bulbs, and completely cut ties with Tuya and the cloud.