What is it?

This is smart 2-gang light switch.

Why did you make it?

I needed to remotely turn on and off lights in my house. But I didn't want to change my original light switches. So I designed this smart switch. In my setup it runs Espurna, but you can flash Tasmota firmware or write your own. The brain of this switch is ESP8285 in ESP-M3 module. The muscles are two triacs (BTA208S) The enclosure is CBOX INT 25 from Italtronic and is not included, it is only shown for reference.

What makes it special?

This smart switch fits in EU 60mm wall enclosure. You can use yours toggle switches. It is powered by separated power supply module (HLK-PW03), so the dangerous mains voltage is away from the user.