In this illustration we will going to wire the Line Finder Sensor Module HCARDUXXXX5. This module requires only DIO pin defined as an input) to work. When the sensor detects a dark line it will trigger the signal into HIGH, if its LIGH then it will trigger as LOW. This module is the characteristics on the previous article the Obstacle Avoidance Sensor Module. This module is perfect for line following robot.

Required Components

Line finder sensor module board
Solder Less Breadboard
Jumper Wire

Wiring Diagram


Arduino Sketch Code


Wiring the Line finder Sensor with Arduino
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