ESP32 Alexa controlled relay module to control 8 home appliances with Amazon Alexa App & Manual Switch. Explained with Circuit & Source Code.
Blynk ESP32 Home Automation system to control 8-channel relay module with and without internet. Explained with Circuit & Source Code.
How to make ESP32 PWM LED dimmer with voice control using Alexa. Also without the internet control the brightness with the potentiometer.