Martin Jerry MJ S01 - stodev-com-br/Tasmota GitHub Wiki

The chip inside is a Tuya TYWE3S which is based on the ESP8266.

Template

GPIO Pin Selection
4 D2 Led1i (56)
5 D1 Led2i (57)
12 D6 Relay1 (21)
13 D7 Button1 (17)

All other component assignments should be set to None (0)