Tuya Mini Switch Relay Module (MK-601)
Tuya Mini Switch

Available from:

Install method:
Replace module

GPIO #Component
GPIO00 None
GPIO01 User
GPIO02 None
GPIO03 Button 1
GPIO04 Led_i 1
GPIO05 None
GPIO09 None
GPIO10 None
GPIO12 None
GPIO13 Relay 1
GPIO14 Switch 1
GPIO15 None
GPIO16 None
GPIO17 None
{"NAME":"Tuya Mini Switch","GPIO":[0,1,0,32,320,0,0,0,0,224,160,0,0,0],"FLAG":0,"BASE":1}
This device uses TR620 module which needs to be replaced with an ESP. Besides the module, this process will require a heat gun, soldering tools and moderate soldering skill.

The relay has TR620 chip that needs to be replaced with ESP-02S.