LED controller for my workbench

18/11/2023

On the layout, I use an LED control system described here: https://shin-yukari.weebly.com/led-controller.html. It is based on Adafruit 12-Channel 16-bit PWM LED Driver modules spread all over the layout. They allow a central computer (a Raspberry Pi in my case) to control the hundreds of LEDs fitting the various buildings.
In addition, I needed a similar control box on my workbench. This is a description of the system I have designed.

It uses the same Adafruit module and exposes the 12 LED outputs on terminal blocks with push-in connection, suitable for temporary connection (no soldering required, no screw).

Here we see a building "under construction", with its wires attached to the control box.

I have designed the PCB in Autodesk Fusion 360. The system is based on an ESP32 microcontroller connected to the Adafruit module and to the various connectors and terminal blocks. The ESP32 exposes a web page used to individually set the brightness of each LED.

1 Comment

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