Infrared barrier module/obstacle avoidance car obstacle avoidance sensor/black and white line recognition distance adjustable photoelectric switch
Product Descriptions：
Delivery List
One barrier sensor module
No wiring
Module Description
This sensor module has strong adaptability to environmental light and has a pair of infrared emission and reception tubes. The emission tube emits infrared radiation at a certain frequency. When the detection direction encounters an obstacle (reflection surface), the infrared radiation is reflected back and received by the reception tube. After being processed by the comparator circuit, the green indicator light will light up, and the signal output interface will output a digital signal (a low-level signal). The detection distance can be adjusted through a potentiometer knob, with an effective distance range of 2-30cm and a working voltage of 3.3V-5V. The detection distance of this sensor can be adjusted by a potentiometer, and it has the characteristics of low interference, easy assembly, and convenient use. It can be widely used in many occasions such as robot obstacle avoidance, obstacle avoidance carts, assembly line counting, and black and white line tracking.
Module parameter description
1.When the module detects an obstacle signal ahead, the green indicator light on the circuit board lights up at a certain level, and the OUT port continues to output a low-level signal. The module detects a distance of 2-30cm and a detection angle of 35 °. The detection distance can be adjusted through a potentiometer. Clockwise adjustment of the potentiometer increases the detection distance; Turn the potentiometer counterclockwise to reduce the detection distance.
2. The sensor actively detects infrared reflection, so the reflectivity and shape of the target are the key to the detection distance. Among them, the black detection distance is small, and the white detection distance is large; Small objects have smaller distances, while large objects have larger distances.
3. The output port OUT of the sensor module can be directly connected to the IO port of the microcontroller, or it can directly drive a 5V relay; Connection method: VCC-VCC; GND-GND; OUT-IO
4. The comparator adopts LM393, which works stably;
5. The module can be powered by a 3-5V DC power supply. When the power is turned on, the red power indicator light is on;
6. Featuring 3mm screw holes for easy fixation and installation;
7. Circuit board size: 3.2CM * 1.4CM
8. Each module has already adjusted the threshold comparison voltage through a potentiometer during shipment. Unless under special circumstances, please do not adjust the potentiometer arbitrarily.
Module interface description
1 VCC external 3.3V-5V voltage (can be directly connected to 5V and 3.3V microcontrollers)
2 GND external GND
3 OUT small board digital output interface (0 and 1)
