Mô Đun Cảm Biến Hồng Ngoại Màu Trắng / Đen Chuyên Dụng Cho Xe Hơi

Product description:
I. module description
The sensor module has a strong adaptability to environmental light. it has a pair of infrared emission and receiving tubes, which emit a certain frequency of infrared radiation and meet obstacles in the direction of detection(Reflection surface)When infrared reflection is received by the receiver, the green indicator lights are activated after the comparator circuit is processed, and the signal output interface outputs the digital signal(A low level signal)Can adjust detection distance by potentiometer knob, effective distance range 2~30cm, working voltage is 3.3 v-5v.The detection distance of the sensor can be adjusted by potentiometer, with the characteristics of small interference, easy assembly, easy to use, etc.

Ii. description of module parameters
-when the module detects the forward barrier signal, the green indicator light on the circuit board lights the level, while the out port continuously outputs the low level signal, which detects distance 2~30cm and detection angle 35°Detection distance can be adjusted by potentiometer, clockwise potentiometer, detection distance increases counterclockwise potentiometer, detection distance decreases.
-sensor active infrared reflection detection, so the reflection rate and shape of the target is the key to the detection distance.Black detection distance is the smallest, white largest small area object distance, large area distance.
-sensor module output port out can be connected directly to io port of single chip microcomputer or directly drive a 5v relay connection: vcc-vcc gnd-gnd out-io
-lm393 is used for comparators, and work is stable
-the module can be powered by 3-5 v dc power source.When the power supply is connected, the red power indicator lights are on
-screw holes with 3mm for fixing and installlation
-circuit board size: 3.1 cmx1.5 cm
-each module has already adjusted the threshold voltage through the potentiometer at delivery. do not adjust the potentiometer arbitrarily in exceptional cases.

Iii. module interface description (3 lines)
1 vcc external 3.3v-5v voltage (directly connected to 5v single chip and 3.3v single chip)
2 gnd external gnd
3 out small board digital output interface (0 a