4-channel line tracing/follower sensor for Arduino

Features:

• Operating voltage: DC 3.3V-5V
• Operating Current: try to choose more than 1A power supply
• Operating Temperature: -10 ° C - +50 ° C
• mounting aperture: M3 screw
• detection distance: 1mm to 60 cm
• adjustable closer the performance is more stable, the white reflection farthest. 
• The output interface: 6-wire interface (1234 for the 4-way signal output terminal, + positive power, - the negative power supply is ground) Output signal: TTL level (directly connected microcontroller I / 0, sensitive to infrared light reflected back by the sensor, the red light is on, the output low; absence of infrared light, the light does not shine, the output high level.)
• Applications: A smart car or robot hunt (including black and white lines), walking along the path of the black line, also known as tracing. Smart car to avoid the cliff, anti-drop. Smart car for obstacle avoidance