As a Lego enthusiast, I know firsthand how time consuming it can be to manually sort and organize a large collection of Lego bricks. Having an automated system to handle this tedious task would be a game-changer! In this guide, I'll walk you through the full process of building your own DIY electronic Lego sorter from start to finish using simple components like light sensors, motors, and microcontrollers.

Gathering the Required Electronic Components

The electronic components needed to build the Lego sorter include:

Light Sensor



Motor Driver

Power Supply

Jumper Wires

Structural Components

Along with the electronics, you'll need these parts to build the structure:

Assembly Steps

With all of the parts ready, it's time to put it together! Follow these steps:

1. Build the Main Frame

2. Mount the Motors

3. Install the Light Sensor

4. Set Up the Microcontroller

5. Build the Launcher and Bins

Coding the Sorting Logic

With the hardware built, it's time to program the intelligent sorting logic. The key steps include:

Scan and Identify Brick Color

Activate Matching Motor

Return Motor Home

Repeat Continuously


Building your own automated Lego sorter is a fun electronics project that also produces a useful tool to organize your bricks with ease. The key is getting the mechanical components aligned properly and coding reliable color detection and motor activation logic. With some persistence and testing, you'll be able to sort your Legos hands-free in no time!