HW-201 IR Obstacle Avoidance Module for Arduino Smart Car Robot 3

Module description

A sensor module adaptable to ambient light, which has a pair of infrared transmitting and receiving tubes, the transmitting tubes emit infrared at a certain frequency, when the direction of the obstacle (reflective surface) is detected, the infrared reflected is received by the receiving tube, After the processing comparator circuit, the green light is on, but the output output interface signal digital signal (low level signal), you can adjust the detection distance potentiometer, effective distance range 2 ~ 30cm, working voltage 3.3V - 5V. The detection range of the sensor can be obtained by adjusting the potentiometer, with little interference, easy to assemble, easy to use functions, it can be widely used in robot obstacle avoidance, car avoidance, line count and black and white line tracking and many other occasions.

Module parameters

1, When the module detects an obstacle in front of the signal, the board level green indicator lights up, while the OUT port keeps the signal low, the module detects the distance 2 ~ 30cm, the detection angle 35 °, the distance can detect the potential is adjusted clockwise potentiometer, detect distance increase; adjusting potentiometer counterclockwise, reducing the detection distance.

2, active infrared reflection detection sensor, the target's reflectivity and therefore the shape is the critical detection distance. Where minimum detection distance black, white, maximum; small items far from small area, large area from Grand.

3, the output port of the sensor module OUT port can be directly connected to the microcontroller IO can also directly control the 5V relay; Connection: VCC-VCC; GND-GND; OUT-IO

4, LM393 comparators, stable;

5, the module can be 3-5V DC power supply. When the power is turned on, the red power indicator lights up;

6, with 3mm screw holes, easy fixed installation;

7, plate size: 3.2cm * 1.4cm

8, each module was supplied comparator threshold voltage adjusted by potentiometer good, other than special case, potentiometer adjustable.

Description of the module interface

1 external voltage VCC 3.3V-5V (can be directly connected to 5V and 3.3V MCU MCU)

2 GND GND external

3 OUT digital output interface on small board (0 and 1)