Sonoff Dual R3 has a hidden secret : r/Not_Enough_Tech

Turning an Existing Light Switch into an MQTT Connected Smart Switch using a Sonoff Mini

Are new Sonoff ZigBee sensors better? - NotEnoughTech

Sonoff, what were you thinking? Sonoff Cam Slim - NotEnoughTech

Sonoff, what were you thinking? Sonoff Cam Slim - NotEnoughTech

Sonoff, what were you thinking? Sonoff Cam Slim - NotEnoughTech

Sonoff, what were you thinking? Sonoff Cam Slim - NotEnoughTech

Sonoff Mini - make your old light switches smart

Sonoff DUALR3 has a hidden secret - NotEnoughTech

Sonoff DualR3 is awesome, has a secret and now it's dead