This is high performance line finder that is designed for line following robotic. It consists two parts - an IR emitting LED and an IR sensitive phototransistor. It can output digital signal to a microcontroller so the robot can reliably follow a black line on a white background. The sensor is Arduino compatible.
-5V DC power supply.
-Distance: up to 3 cm
SIG: Output (HIGH when line is black and LOW when line is white)
VCC: 3.3-5 VDC