Alexa compatible esp8266 or sonoff firmware.

ESPHome based custom firmware for Sonoff TX Ultimate. Easy to setup.

Connect the sonoff to the internet using the blynk app, you can also use a physical wall switch or add a DHT22 sensor

Espegi is an alternative firmware for ESP8266 based devices like iTead Sonoff with web UI, OTA updates, and Blynk support.

Simple Python class to toggle Sonoff Micro USB Smart Adaptor state.

ESPEasy rules for different autonomous tasks

Itead Sonoff SC atmega part