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 red 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. It can be widely used in many situations such as robot obstacle avoidance, obstacle avoidance vehicles, assembly line counting, and black and white line tracking.
instructions:
1. When the module detects an obstacle signal ahead, the red indicator light on the circuit board lights up, 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, black has the smallest detection distance and white has the largest; 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
Connection method: VCC-VCC; GND-GND; OUT-IO
4. The module can be powered by a DC 3.3-5V DC power supply. When the power is turned on, the red power indicator light is on;
Interface Description:
1 . VCC external DC 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)
