A line follower robot built to autonomously navigate a track marked by a black line on a white surface. The goal is for the robot to complete the track as quickly as possible.
- 16 reflective sensors for precise line detection
- PD controller for responsive steering
- Bluetooth module for remote control and PID parameter calibration
- Lightweight design at just ~70g
This project features two custom-designed PCBs that are connected via a flexible flat cable (FFC):
- Sensor board - contains 16 reflective sensors for line detection
- Main board - responsible for the robot's core functionalities. It integrates the microcontroller, motor drivers, bluetooth module and power management circuitry
The PCBs are mechanically joined with a lightweight 3D-printed connection bar. The motor and battery mounts are also 3D-printed.
Several tire types have been tested:
- MINI-Z Low Height Slick Tire 40° MZW39-40: This tire provided solid grip and durability, serving as a reliable baseline for testing.
- MINI-Z LM Wide High Grip Tire 20° MZT302-20: This tire offered superior grip, which led to improved cornering speeds, but at the cost of durability.
- MINI-Z RACING SLICK WIDE TYRES 20° MZW17-20B: Initial tests showed slightly less traction, and require further testing.
A dedicated Android app allows for remote control and tuning of the robot. Its main functions include PID parameter calibration and the ability to start and stop the robot's run.
Microcontroller doesn't program
Make sure that the fusebits are set as bellow:
