This device, on version eWeLink (november 2023), have PSF-B01 no Tuya MCU. PSF-B01 is a single-channel ultra-low-power Wi-Fi switch module based on ESP8285. It can flash with Tasmota USB serial TTL. (https://templates.blakadder.com/PSF-B.html)
The template for this is:
{"NAME":"RDCBC-1P","GPIO":[32,0,0,0,0,0,0,0,288,224,0,0,0,0],"FLAG":0,"BASE":18}
This device, on version eWeLink (november 2023), have PSF-B01 no Tuya MCU. PSF-B01 is a single-channel ultra-low-power Wi-Fi switch module based on ESP8285. It can flash with Tasmota USB serial TTL. (https://templates.blakadder.com/PSF-B.html) The template for this is: {"NAME":"RDCBC-1P","GPIO":[32,0,0,0,0,0,0,0,288,224,0,0,0,0],"FLAG":0,"BASE":18}