This is a Trailing Edga MOSFET Dimmer I'm working on. The specs are for 110V AC, not 220V or so, some components values must be changed.
It uses a ATMega 32u4 / Pro Micro module.
The firmware is has not been written yet.
*** THIS HAS NOT BEEN TESTED ***
2023-03-16: Added some changes based on Tim Williams feedback on StackExchange.
PCB:
Render: