Converting dimmer to rotary encoder.
First first thing to do is to draw a schematic and pcb board:
Note that P12 and P13 are actually LEDs and P14 is ALPS rotary encoder, which I had to draw by my self ( you can download Altium footprint library bellow).
Here are the Altium PCB schematic and encoder library files: Encoder_dimmer
Some more step-by-step photos:
(I know the PCB quality is terrible, It’s because I run out of photo-positive boards, so made this using toner transfer method)