Solderless SonOff Basic working in Cayenne Over The Air

[wj4me]

The latest version of the sketch can be found at:

SonOff (or other ESP8266 device) with Cayenne MQTT OTA & AP

About This Project The SonOff is a small device containing an ESP8266, relay, power supply LED and button on a footprint of 8.5x4 cm. AC/DC goes straight in (and out) the device so precaution should be well in place; The device gets hotter (than i.e. a Wemos D1 R2) the AC/DC lines do not have an 100% strain relief. But for $5 a piece you have a complete device to play with. There is already a lot to be found in forums about the SonOff. So far I missed an useful sketch which connected the S…

This version includes wifimanager so it is possible to exclude Wifi and Cayenne’s MQTT credentials from the sketch.