Infrared wall barrier module/barrier -avoiding car obstacle avoidance sensor/black and white line recognition distance can be adjusted

Module description

The sensor module has a strong adaptability to the environmental light. It has a pair of infrared launch and receiving tube. The transmitting tube emits a certain frequency of infrared rays. When the obstacle (reflected surface) is encountered in the detection direction, the infrared reflection is returned to receive the pipe and receives.After the comparator circuit is processed, the green indicator light will light up. At the same time, the signal output interface output digital signal (a low level signal) can be adjusted by the potentiometer knob to adjust the detection distance. The effective distance range is 2 to 30cm.5V.The detection distance of this sensor can be used through the characteristics of the potentiometer, small interference, easy assembly, and convenient use. It can be widely used in many occasions such as robotics, disabled cars, assembly line counts, and black and white line tracking.

Module parameter description

1 When the module detects the front obstacle signal, the green indicator light on the circuit board lights up the level, and the OUT port continues to output low level signals.°The detection distance can be adjusted by the potentiometer, clockwise the potentiometer, and the detection distance increases; the counterclockwise potentiometer is reduced, and the detection distance is reduced.

2. The sensor actively infrared reflection detection, so the target's reflectance and shape are the key to the detection distance.Among them, the black detection distance is the smallest, the largest in white; the small area of ​​the small area is small and the distance is large.

3. The output port of the sensor module can be connected directly with the single-chip IO port, or it can directly drive a 5V relay; connection method: VCC-VCC; gnd-gnd; out-IO

4. The comparator uses LM393, and the work is stable;

5. The module can be used to power the module with a 3-5V DC power supply.When the power supply is turned on, the red power indicator lights lit;

6. Have a screw hole of 3mm, which is convenient for fixing and installation;

7. Circuit board size: 3.2cm*1.4cm

8. Each module has adjusted the threshold comparison voltage through the potentiometer at each module. It is not special case. Do not adjust the potentiometer at will.

Module interface description

1 VCC external 3.3V-5V voltage (can be connected directly with 5V single-chip machine and 3.3V single-chip microcomputer)

2 GND external GND

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

Shipping list

1 As shown in the figure, the wall barrier sensor module is a piece

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