Brand N/A Model N/A Quantity 1 Color Blue + black Material PCB Features Obstacle avoidance function: IR transmitting tube of each channel sensor transmit IR continuously if transmitted IR does not reflected back or reflected strong enough the receiving tube is still off TTL output port is in high level related indicating diode is off; Or TTL output port is in low level and indicating diode is lighted on; Connecting to other sensor: Impedance value of sensor will change as environment; Value become lower and lower till reach to the value that potentiometer need TTL output is in low level and indicating diode is lighted on Specification Working voltage: DC 3.3~5V; Working current: higher than 1A; Working temperature: -10~50'C; Module cable connecting: DO1: Channel 1 TTL output; DO2: Channel 2; DO3: channel 3; DO4: channel 4; GND: negative port; VCC: Positive port; Size: 44 x 30 x 8.5mm Application Obstacle avoidance sensor; A product for Arduino that works with official Arduino boards. English Manual/Spec Yes (E-format) Packing List 1 x Obstacle avoidance sensor module