A simple line follower project of mine.
Consists of:
- ATmega 328P
- L298 dual H-bridge
- 6x QRE1113GR optotransistors
- 2x pololu clone 12V 1200RPM motors
- step down 5V converter
- 7,4V Li-Ion battery
- couple resistors, LEDs and other passive components
Programmed in Arduino.
Uses PID loop and a simple algorithm to find center of line (using weighed average).
Follows black line on white background.
Video of device test
Before mounting DC motors:
Finding voltage/speed characteristic using optical speed measurement:
