Sonoff S31 Power Monitoring Plug
Sonoff S31
GPIO #Component
GPIO00 Button1
GPIO01 CSE7766 Tx
GPIO02 None
GPIO03 CSE7766 Rx
GPIO04 None
GPIO05 None
GPIO09 None
GPIO10 None
GPIO12 Relay1
GPIO13 Led1i
GPIO14 None
GPIO15 None
GPIO16 None
Configuration (old format, will be converted to new template when applied)
{"NAME":"Sonoff S31","GPIO":[17,145,0,146,0,0,0,0,21,56,0,0,0],"FLAG":0,"BASE":41}
For more accurate energy consumption measurements this device requires power monitoring calibration.

Use code BLAKADDER when buying from itead.cc for a 10% discount.

Serial Flashing

Complete guide on Tasmota Docs

Buying Advice

When ordering check if it is indeed Sonoff S31 and not Sonoff S31 Lite which does not support power monitoring.