Robotbanao IR Infrared Obstacle Avoidance 3 Wire Reflective Sensor Module For Arduino 5pcs IR Sensors

IR infrared obstacle avoidance sensor module has a pair of infrared transmitting and receiving tubes. When the transmitted light waves are reflected back, the reflected IR waves will be received by the receiver tube. The onboard comparator circuitry does the processing and the green indicator led comes to life. The module features a 3 wire interface with VCC, GND and an output pin on its tail. It works fine with 3.3 to 5V levels. Upon hindrance/reflectance, the output pin gives out a digital signal (a low level signal). The onboard preset helps to fine tune the range of operation, effective distance range is 2cm to 80cm. Features: Easy to assemble and use. Onboard detection indication. Effective distance range of 2cm to 80cm. A preset knob to fine tune distance range. If there is an obstacle, the green indicator light on the circuit board. The IR sensor power consumes about 20mA even during idle state (when not sensing hand.) Temperature range from -20°C to 1000°C. Used for general purpose and dull surface applications. Package Includes: 5 x IR infrared obstacle avoidance sensor module