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Infrared proximity sensor

2018-04-12 11:12:35

The infrared proximity sensor has a pair of infrared signal transmitting and receiving two poles. The infrared signal of a specific frequency is emitted by the transmitter, returned when encountering obstacles, and the infrared signal is received by the receiver. After internal digital calculation and processing, the distance sensing reference meter value is obtained. The sensor has a serial port output function, and can output the distance sensing reference meter through the serial port. The rear of the sensor is equipped with an adjustment button, which can adjust the maximum sensing distance value of different obstacles (1-2000px). When the obstacle is within the set maximum sensing distance value, the led indicator lights up, and the green line outputs a high level signal (or PWM signal).





Distance setting operation instructions

Connect DC 5V power supply to the sensor (red wire is connected to the positive terminal of the power supply, black wire is connected to the negative terminal of the power supply)


This information is taken from experience without authorization


Click the Settings button to set the maximum sensing distance value. When the setting is successful, when there is an obstacle within the maximum sensing distance range that the sensor can sense, the led indicator on the sensor lights up, and the green line outputs a high level signal or (PWM signal).


After a power failure, the built-in microprocessor of this sensor automatically saves the maximum sensing distance value set before the power failure. When the system is powered on again, the default value of the maximum sensing distance is the value set last time. This maximum sensing distance value can be used directly or set again by pressing a button

Serial communication description

The user can communicate with the computer through the yellow serial port output line of the sensor, and the distance sensing reference meter value can be obtained. The communication baud rate is 9600, data bit is 8, data bit is 1 stop bit, and no check bit is available. Example of distance sensing reference meter output by serial port:


There is a quasi-linear relationship between the actual distance value and the distance sensing reference meter value. The above data, different measurements, the actual data will be different.

Product Features (Functions)

1. Sensing distance range: 1-2000px, can be adjusted according to demand 2. Small induction blind area 3. Set transmission and reception in one 4. Built-in microprocessor, with power failure memory function 5. Easy to operate, can be set by the button induction maximum distance 6. Can output level signal (high level 3.3V, low level 0V) or PWM signal, The distance sensing reference meter can be output through the serial port. The built-in microprocessor can communicate with other upper computers. The user can receive the distance sensing reference meter value from the serial port 7. Small interference by visible light, high precision 8. Fast response, non-contact induction 9. Cost-effective, easy to assemble, easy to use, etc

Describes the main performance parameters

Electrical characteristics: Working voltage :5V DC working current :<50mA Inductive effective distance :1-80cm, can be adjusted according to demand Size: Diameter :17mm sensor length :45mm lead length :45cm

Technical parameter

1, output current: <20mA2, working current: <50mA3, response time: 10-150mS, related to the type of detection object and distance 4, pointing Angle: ≤15°5, sensing object: different detection object color and surface shape, sensing distance is different 6, working environment temperature: -25℃~+55℃7, working environment illumination: Sunlight 10000LX below incandescent lamp 3000LX below 8, shell material: metal

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