Ivan Belokobylskiy

Try to lower baudrate to 340000

> you mentioned updating the device firmware. Is there an OTA method of re-installing/updating the firmware if I can't get it to pair with my coordinator? No, the only way...

To reset the device you need to short contacts for more than 5 seconds. It is described in the documentation.

@mribeiro i had the same issue on mac. Changing timeout to 0.05 or 0.1 helped me. https://github.com/devbis/z03mmc/blob/ec3f46c750dd31bb2b62b25b80c866a6ad4a0255/TLSR825xComFlasher.py#L484C2-L484C2 Play with the value, it may help you too

It works with USB-COM adapters with LEDs on RX/TX or whatever. Maybe it is not officially supported.

В теории - да, если найдётся энтузиаст, который модифицирует прошивку. У меня нет икеевского датчика и на данный момент заниматься этим неинтересно.

@Habbie the idea is to solder the board to uart from that sensor, read packets with pm2.5 measurements, and export them to zigbee network in appropriate clusters.

I wrote PoC firmware to add IKEA Vindriktning to zigbee network using lywsd03mmc board. Here is the compiled firmware https://github.com/devbis/z03mmc/actions/runs/7323760450 And here is a short (text) description for soldering https://github.com/devbis/z03mmc/tree/vindriktning#ikea-vindriktning-upgrade...

No, it should be a gpio pin. Maybe it is p11 here?

https://github.com/devbis/z03mmc/blob/vindriktning/src/board_8258_03mmc.h#L44 Yes, PB7/RX is used to receive data from the sensor. You should use P11. I also used rev 1.5 for converting, but can't find the device. And yes, you...