HC-SR501 Adjust IR Pyroelectric Infrared PIR Motion Sensor Detector Modules

About HC-SR501 Adjust IR Pyroelectric Infrared PIR Motion Sensor Detector Modules

Description:

PIR Sensor Module (Passive Infra-Red ) Sensor is an electronic semiconductor type sensor that measures infrared (IR) light radiating from objects in its field of view. This module detects and gives a trigger when there is any motion by a heat radiating object in its range of view. This sensor is passive as it does not emit or radiate any energy for detection. Every object above absolute zero emits heat, this heat signature is in Infrared wavelength which cannot be seen by the naked eye, but can be measured by infrared devices. This Sensor is covered with Fresnel Lenses, which create a wide angle of detection and are also used for noise filtering. This PIR includes an adjustable delay before firing (approx 0.5 - 200 seconds), has adjustable sensitivity. It runs on 4.5V-20V power (or 3V by bypassing the regulator with a bit of soldering) and has a digital signal output (3.3V) high, 0V low. Its sensing range is up to 7 meters in a 100-degree cone.

Specification:

Working voltage: 5V - 20V

Power Consumption: 65 mA

TTL Output: 3.3V

Lock Time: 0.2 sec

Trigger Methods:

L- Disable Repeat Trigger

H- Enable repeat Trigger (Default)

Sensing range: less than 120 degrees, within 7 meters

Temperature: -15 +70

Dwell time: (Stay-ON time) adjustable between 5-300 Seconds

Advanced Motion Sensing Technology

Featuring pyroelectric infrared detection, the HC-SR501 ensures reliable motion sensing. Its adjustable sensitivity lets users tailor trigger responses for specific environments, enhancing both security and automation systems in IT and robotic applications.


Energy Efficiency and Low Power Usage

With a power consumption of only 2mA at 5V DC, the HC-SR501 motion sensor is ideal for battery-powered setups and energy-sensitive deployments. It allows for longer operation cycles and reduced operational costs in industrial use.


Versatile Application and Convenience

The HC-SR501 module supports wireless operation and Modbus protocol, enabling easy integration into various systems. Whether for manufacturers, suppliers, or hobbyists, its straightforward usage and robust build make it suitable for multiple project requirements.