What is it?

The board provides a simple basis for controlling 4 different LED-Strings (e.g. Neopixel from Adafruit) with up to 4 different buttons using an ESP32. The LEDs can be installed, for example, on a bicycle, toy car or similar.

Why did you make it?

My children wanted lights for our bobby car. And since the ones you can buy only have lights, Dad had to build something. Now the thing has driving lights, flashing lights. Left and right turning lights, flashing blue light and hazard warning lights.

What makes it special?

As far as I know, this is the only circuit board of its kind that can be assembled quickly. Otherwise you can also make do with a breadboard, but it takes a long time.

You can view a video of the mock-up at: https://nothnagel.org/wp-content/uploads/2020/03/BBC_v1.mp4

You can view a video of the Bobby car from my Kids: https://www.youtube.com/watch?v=2NlunPvkzLY