My experience with multiple Tuya Motion sensors from China. One worked well, the other would not stop flashing blue. No 'messages' were getting to and from the new one. I tried everything and finally found some advice and figured out some. This is about the Tuya ES0202 mini sensor.
There are several versions of the driver for this. The latest is updated as of 6/14/24. Apparently sometimes they change the mfg code and the driver has problems with it. I was running a 2023 version of the driver with the one which works. Downloading the new driver, it's title was the same which was problem $1. On 'pairing' it picked up the old driver and not the new one. But alas, figuring out which was old and new with the same name and then assigning the new to the new sensor did not work either. Logs showed "the device join failed..." still.
Then I saw the suggestion to 'rebuild the Zigbee network TWICE and then power down the hub and re-pair. Shocking, I did that, paired and the flashing blue light stopped on pairing. Wow. Works like a charm now.
