3pin Ir Obstacle Avoidance Sensor Module

Reflective Photoelectric 3pin IR Infrared laser Obstacle Avoidance Sensor Module for DIY Robot Smart Car

Description:

Reflective Photoelectric 3pin IR Infrared laser Obstacle Avoidance Sensor Module for DIY Robot Smart Car
1.When the module detects the obstacle signal in front, the green indicator on the board lights up, and the OUT port continuously outputs a low level signal. The detection distance of the module is 2~30cm, the detection angle is 35°, and the detection distance can pass the potential. Adjust the device, adjust the potentiometer clockwise, increase the detection distance; adjust the potentiometer counterclockwise to reduce the detection distance.
2.the sensor active infrared reflection detection, so the target's reflectivity and shape is the key to the detection distance. Among them, the black detection distance is the smallest and the white is the largest; the small-area object has a small distance and a large area has a large distance.
3. The sensor module output port OUT can be directly connected to the IO port of the MCU, or it can directly drive a 5V relay; connection mode: VCC-VCC; GND-GND; OUT-IO
4.the comparator uses LM393, the work is stable;
5.The module can be powered by 3-5V DC power supply. When the power is turned on, the red power indicator lights up;
6.with 3mm screw holes for easy fixing and installation;
7.circuit board size: 3.2CM * 1.4CM
8. Each module has adjusted the threshold voltage to the potentiometer through the potentiometer. For non-special cases, do not adjust the potentiometer at will.

The sensor module has strong adaptability to ambient light, and has a pair of infrared emitting and receiving tubes. The transmitting tube emits infrared rays of a certain frequency. When the detecting direction encounters an obstacle (reflecting surface), the infrared rays are reflected and received by the receiving tube. After the comparator circuit processing, the green indicator light will be on, and the signal output interface will output a digital signal (a low level signal). The detection distance can be adjusted by the potentiometer knob. The effective distance range is 2~30cm, and the working voltage is 3.3V- 5V. The detection range of the sensor can be adjusted by potentiometer, with small interference, easy assembly and convenient use. It can be widely used in many obstacles such as robot obstacle avoidance, obstacle avoidance, pipeline counting and black and white line tracking.


Module interface description
1 VCC external 3.3V-5V voltage (can be directly connected to 5v microcontroller and 3.3v microcontroller)
2 GND external GND
3 OUT small board digital output interface (0 and 1)

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