Adding temperature / humidity sensor to Sonoff S20 socket - Share your Projects! - Home Assistant Community
Flashing a Sonoff with a Raspberry Pi
Hacking the new ITEAD Studio - Sonoff S31 - Projects made with Blynk - Blynk Community
S20: Schalter an GPIO anschließen? - Sonoff Touch, Sonoff T1, Sonoff T2, Sonoff TX + Remote Wandschalter - CREATIONX - Smart Home Forum
Sonoff S20 v1.3 Header - Let's Control It
Srdan's blog: Flashing Tasmota firmware to Sonoff S20
Main Page - Sonoff-Tasmota for SM-PW701E
Using With Sonoff S20 — ESPHome
Sonoff S20 Plug Configuration for Tasmota
esp8266 - Sonoff Dual - Where to find GPIOs - Internet of Things Stack Exchange
Using With Sonoff S20 — ESPHome
SonoffS20 V2.1.0 - Pin E-LOG - kann ich hier einen DS18B20 anschließen? - Sonoff Touch, Sonoff T1, Sonoff T2, Sonoff TX + Remote Wandschalter - CREATIONX - Smart Home Forum
Sonoff WiFi Smart Switch With I2C Port – JackenHack