Just in case anyone was thinking “I’m gonna buy one and put ESPHome on it” or something, the microcontroller is a Beken 7525UQN68 which I’ve not been able to find any robust documentation for. It is Tuya, so that might be an angle of attack. The quality is shockingly good for such a small sensor and the included batteries are a pair of 18650s which was a nice surprise. I’m probably going to reset and return it or just drop it at a charity shop.
Just in case anyone was thinking “I’m gonna buy one and put ESPHome on it” or something, the microcontroller is a Beken 7525UQN68 which I’ve not been able to find any robust documentation for. It is Tuya, so that might be an angle of attack. The quality is shockingly good for such a small sensor and the included batteries are a pair of 18650s which was a nice surprise. I’m probably going to reset and return it or just drop it at a charity shop.
Using 18650 batteries is nice. One of the few things I don’t like about the Eufy.