Arduino LED Matrix Project This project utilizes an Arduino Uno, a sound sensor, and a Bluetooth module (HC-5) to create an interactive LED matrix display. The project can be controlled via a mobile ...

Servos: Base Servo connected to pin 3 Shoulder Servo connected to pin 4 Elbow Servo connected to pin 5 Gripper Servo connected to pin 6 Ensure servos share a common GND with the Arduino. RGB LED: ...

You can throw a Raspberry Pi camera and OpenCV at the problem and approach it through software, or you can buy an off-the-shelf RGB sensor and wire it up to an Arduino.

As you might expect, there’s an Arduino and some RGB LED strips involved. But the key to this build is in the 16 pieces of side-glow plastic fiber optic tubing.