HC-SR501 PIR Sensor (Passive Infrared Sensor) + IR Proximity Sensor

The HC-SR501 PIR Motion Sensor Module allows you to sense motion. It is almost always used to detect the motion of a human body within the sensor’s range. It is often referred to using “PIR”, “Pyroelectric”, “Passive Infrared” and “IR Motion Sensor” sensors. The PIR Motion sensor module has an onboard pyroelectric sensor, conditioning circuitry, and a dome-shaped Fresnel lens. 

The IR Proximity Sensor module has great adaptive capability of the ambient light, having a pair of infrared transmitter and the receiver tube, the infrared emitting tube to emit a certain frequency, encounters an obstacle detection direction (reflecting surface), infrared reflected back to the receiver tube receiving, after a comparator circuit processing, the green LED lights up, while the signal output will output digital signal (a low-level signal), through the potentiometer knob to adjust the detection distance, the effective distance range 2 ~ 10cm working voltage of 3.3V-5V.

The detection range of the sensor can be adjusted by the potentiometer, with little interference, easy to assemble, easy to use features, can be widely used for robot obstacle avoidance, obstacle avoidance car assembly line count and black-and-white line tracking, and many other occasions.

Check out our entire range of IR Proximity Motion Sensors

• PIR sensors are used in thermal sensing applications, such as security and motion detection.
• The IR Sensor can be used in IP cameras
• The PIR sensor are also used for Alarm systems and other crime prevention devices
• The IR sensor can be used for battery-driven human presence sensors for IoT smart homes

Package Includes:

• 1 x HCSR501 PIR Motion sensor module
• 1 x IR Proximity Sensor module

Specifications of IR Proximity Sensor Module: