This is a ESP2866-based PCB to controll up to 4 channels of LEDs with up to 10A per channel.
This was designed in EasyEDA and I have included the easyeda save files and also a generic gerber archive.
The ESP2866 can be flashed by the 4 pins to the right of it with a usb-serial converter on 3.3V.
Below I have attached some images of the schematic and the board, as well as the finished PCB that I have ordered from jlcpcb