Raspberry Pi Line Following Robot with Maker Line

Introduction

Maker Line sensor is designed for line following robot application. It works at 3.3V and 5V make it suitable to be used with Arduino boards, Raspberry Pi, ESP32 and micro:bit. This tutorial is using Raspberry Pi board and python code. Before we start, I recommend you to understand the basic of line following robot. You can refer to this tutorial:

• Building a Low-Cost Line Following Robot

Video

This video is about Raspberry Pi line following robot with Maker Line sensor.

Hardware Preparation

This is the list of items used in the video.

• Raspberry Pi Zero WH
• Maker pHAT
• Maker Line
• 2WD Smart Robot Car Chassis
• 12V DC Motor SPG30HP-30K
• 40 Ways Female to Female Jumper Wire
• 16GB Micro SD Card
• Motor Driver MDD3A
• LiPo Battery 11.1V 2200mAH
• DC Geared Motor Bracket
• Plastic Wheel for SPG30/SPG50

Sample Program

This is the python code for Raspberry Pi line following robot with Maker Line. You may need to adjust the speed (try and error) based on your hardware.

Thank You

References:

1. Python GPIO library - pigpio
2. Library to control GPIO on Raspberry Pi - gpiozero
3. Maker Line Datasheet

Thanks for reading this tutorial. If you have any technical inquiry, please post at Cytron Technical Forum.