Controlling 24 LEDs with Node.js & a Raspberry PI

Here’s a weekend project I recently cooked up to see how difficult it would be to control an Arduino microcontroller over the internet with a Raspberry PI.

In this project I have 24 LEDs and a 4×7 segment display controlled by an Arduino Leonardo via 4x74HC595 Shift Registers.

Here’s a quick video of just the Arduino and LEDs in action:

How to Setup Node.js on a Raspberry PI