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HC-SR501 Adjustable Pyroelectric Infrared (PIR) Motion Sensor Module

Reference: #1616

R 57.39

Out of Stock

The HC-SR501 adjustable pyroelectric infrared (PIR) motion sensor module is a device that is used to detect motion using infrared (IR) signals. It is a widely used module that is commonly found in a variety of applications, including security systems, home automation systems, and other applications that require the detection of motion.

The HC-SR501 module consists of a pyroelectric sensor that is able to detect the presence of a moving object by sensing changes in the level of infrared radiation in the environment. It is able to detect motion over a wide range of distances and angles, and it has an adjustable sensitivity level that can be set using an onboard potentiometer.

The HC-SR501 module is a reliable and widely used motion sensor that is easy to use and integrate into a variety of projects. It is often used in combination with other electronic components, such as microcontrollers and alarms, to build motion detection systems and devices.

Product Type: HC--SR501 Body Sensor Module
Operating voltage range: DC 4.5-20V
Quiescent Current: <50uA
Level output: High 3.3 V /Low 0V
Trigger: L can not be repeated trigger/H can be repeated trigger(Default repeated trigger)
Delay time: 5-200S(adjustable) the range is (0.xx second to tens of second)
Block time: 2.5S(default)Can be made a range(0.xx to tens of seconds
Board Dimensions: 32mm*24mm
Angle Sensor: <100 ° cone angle
Operation Temp: -15-+70 degrees
Lens size sensor: Diameter:23mm(Default)

Note: The potentiometer clockwise to adjust the distance, sensing range increases (about 7 meters), on the contrary,
sensing range decreases (about 3 meters).Delay adjustment potentiometer clockwise rotation, sensor delay longer (about 300S),
the other hand, induction by the short delay (about 5S).

HC-SR501 PIR Motion Sensor Tutorial: Reliable Motion Detection, Sensitivity & Delay Tuning, Repeat/Non-Repeat Modes, and Arduino Alarm Automation
This tutorial is a detailed, practical guide to using the HC-SR501 Adjustable Pyroelectric Infrared (PIR) Motion Sensor Module (Leobot Product #1616) for motion-triggered projects. You will learn what PIR sensors actually detect (changes in IR heat patterns), how to wire it correctly, how to tune the sensitivity (range) and delay time, how to use the jumper for repeatable (retrigger) vs non-repeatable modes, and how to write robust Arduino code that avoids false triggers and noisy outputs.