The ambient light sensor module adaptable, having a pair of infrared transmitter and receiver, launch tube emits a certain frequency of infrared detection direction when an obstacle Reflective surface When the reflected infrared receiver tube is received after the comparator circuit processing, the green indicator light, while digital signal output signal output interface A low signal , The knob can be adjusted by potentiometer detection distance, the effective distance range 2 ~ 30cm, operating voltage of 3.3V-5V. Detection range of the sensor can be adjusted via a potentiometer, with a small interference, easy to assemble, easy to use features, it can be widely used in robot obstacle avoidance, avoidance car, count lines and black and white line tracking and many other occasions.
Module Parameter Description
1 When the module detects obstacles in front of the signal, the green LED is lit on the board level, while continuing OUT port outputs a low level signal, the module detection distance 2 ~ 30cm, detection angle 35, the detection distance by potentiometer adjust clockwise adjustment potentiometer, increase the detection distance; counterclockwise to adjust the potentiometer to reduce the detection distance.
2, the sensor active infrared reflection detection, so the target reflectivity and shape is the key to the detection distance. Wherein the black detection range minimum, maximum white; small area of small objects from a large area from the great.
3, the sensor module output port OUT port can be directly connected to the microcontroller IO, can directly drive a 5V relay; Connection: VCC-VCC; GND-GND; OUT-IO
4, comparators LM393, stable;
5, can be used for 3-5V DC power supply module. When the power is turned on, the red power indicator lights;
6, with screw holes 3mm, easy fixed installation;
7, circuit board size: 3.2CM * 1.4CM
8, each module has been shipped threshold comparator voltage adjustable by potentiometer good, non- case, do not adjustable potentiometer.
1 VCC 3.3V-5V external voltage SCM can be directly connected with 5v and 3.3v microcontroller
2 GND External GND
3 OUT small board digital output interface 0 and 1
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