JOY-IT SEN-HC-SR501 PIR-liiketunnistinmoduuli Arduinoon, Raspberry Pi:hin, ESP32:een

Detect motion with a detection angle of up to 120° and an adjustable range of 3 to 7 meters using the JOY-IT SEN-HC-SR501 PIR motion sensor. This passive infrared sensor module operates on a wide voltage range of DC 4.5V to 20V, making it compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers.

Overview

The SEN-HC-SR501 is a compact PIR motion sensor module featuring a Fresnel lens and adjustable sensitivity and delay time. It outputs a digital signal (high 3.3V, low 0V) when motion is detected. The trigger mode can be set to non-repeatable (L) or repeatable (H) via a jumper. With a quiescent current of less than 50 µA, it is suitable for battery-powered projects.

What stands out

• Wide operating voltage: DC 4.5V to 20V
• Adjustable detection distance from 3 to 7 meters
• Adjustable delay time from 0.5 to 200 seconds
• Low quiescent current: <50 µA
• Digital output compatible with 3.3V and 5V logic
• Operating temperature range: -20°C to +80°C

Technical details

• Sensor type: Passive Infrared (PIR)
• Detection angle: <120° cone angle
• Trigger modes: L (non-repeatable) / H (repeatable)
• Pin count: 3 (VCC, GND, OUT)
• Adjustments: sensitivity potentiometer, delay time potentiometer, trigger mode jumper
• Lens type: Fresnel lens
• Mounting holes: Yes

Our verdict

A versatile and low-power PIR motion sensor module ideal for DIY security systems, automation, and interactive projects.