The sensor module adaptable to ambient light, having a pair of infrared
emitting and receiving tubes, transmitting tubes emit infrared certain
frequency, when the direction of an obstacle is detected (reflection
surface), the infrared reflected is received by the reception tube,
After a comparator circuit processing, the green light is on, but the
signal output interface output digital signal (a low-level signal), you
can adjust the detection distance knob potentiometer, the effective
distance range of 2 ~ 30cm, the working voltage of 3.3V- 5V. Detection
range of the sensor can be obtained by adjusting potentiometer, with
little interference, easy to assemble, easy to use features, can be
widely used in robot obstacle avoidance, avoidance car, line count, and
black and white line tracking and many other occasions.
When the module
detects an obstacle in front of the signal, the green indicator lights
on the board level, while the OUT port sustained low signal output, the
module detects the distance 2 ~ 30cm, detection angle 35 °, the distance
can detect potential is adjusted clockwise adjustment potentiometer,
detects the distance increases; counterclockwise adjustment
potentiometer, reducing detection distance.
2,
the sensor active infrared reflection detection, target reflectivity and
therefore the shape is critical detection distance. Where the minimum
detection distance black, white, maximum; small objects away from a
small area, a large area from the Grand.
3, the
sensor module output port OUT port can be directly connected to the
microcontroller IO can also be directly drive a 5V relay; Connection:
VCC-VCC; GND-GND; OUT-IO
4, comparators LM393, stable;
5, the module can be 3-5V DC power supply. When the power is turned on, the red power indicator lights;
6, with the screw holes 3mm, easy fixed installation;
7, board size: 3.2CM * 1.4CM
8, each module has been shipped threshold comparator voltage
adjusted by potentiometer good, non-special case, do not adjustable
potentiometer.
Module Interface Description
1 VCC 3.3V-5V external voltage (can be directly connected to 5v and 3.3v MCU MCU)
2 GND GND External
3 OUT small board digital output interface (0 and 1)
