SONOFF Basic R2 10A Smart WiFi Wireless Light Switch, Universal DIY Module for Smart Home Automation Solution, Works with Amazon Alexa & Google Home Assistant, Works with IFTTT, No Hub Required - -
Easy way to add manual switch to Sonoff Basic (with status toggle) without flashing? - Hardware - Home Assistant Community
Sonoff Basic Wi-Fi Smart Switch — Untangling the Ropes
How to use SONOFF Wi-Fi Wireless Smart Switch - YouTube