Install Linux on a Sonoff S20 smart plug - Legacy Personal Blogs - Personal Blogs - element14 Community
How to use Sonoff SV GPIO pins - Hardware - Home Assistant Community
Adding temperature / humidity sensor to Sonoff S20 socket - Share your Projects! - Home Assistant Community
Srdan's blog: Flashing Tasmota firmware to Sonoff S20
Sonoff S20 - Tasmota
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
S20-Programming-Header-Pinout - DO IT YOURSELF BLOG - HOBBYTRONICS PK
GitHub - danimtb/sonoff-danimtb: Alternative firmware for Itead Sonoff (ESP8266/ESP8285 based) devices to use them in Home Assistant
Hacking the new ITEAD Studio - Sonoff S31 - Projects made with Blynk - Blynk Community
Flashing a Sonoff with a Raspberry Pi
November | 2016 | Just another Weblog [ˈwɛb.lɔg]
S20 extra header pins? - Help wanted. · Issue #741 · arendst/Tasmota · GitHub
S20: Schalter an GPIO anschließen? - Sonoff Touch, Sonoff T1, Sonoff T2, Sonoff TX + Remote Wandschalter - CREATIONX - Smart Home Forum
esp8266 - Sonoff Dual - Where to find GPIOs - Internet of Things Stack Exchange