---
product_id: 97026817
title: "Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi"
brand: "stemedu"
price: "¥3166"
currency: JPY
in_stock: true
reviews_count: 13
category: "Stemedu"
url: https://www.desertcart.jp/products/97026817-stemedu-5pcs-hc-sr501-pir-infrared-motion-sensor-human-body
store_origin: JP
region: Japan
---

# 0.5-200s adjustable delay 4.5-20V wide voltage range <100° detection angle Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi

**Brand:** stemedu
**Price:** ¥3166
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your smart projects with motion sensing that never misses a beat!

## Quick Answers

- **What is this?** Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi by stemedu
- **How much does it cost?** ¥3166 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/97026817-stemedu-5pcs-hc-sr501-pir-infrared-motion-sensor-human-body)

## Best For

- stemedu enthusiasts

## Why This Product

- Trusted stemedu brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Wide-Angle Detection:** Covers a broad <100° cone angle to catch every subtle movement in your space.
- • **Energy-Efficient Design:** Ultra-low quiescent current (<50µA) keeps your projects running longer and greener.
- • **Plug & Play Integration:** Effortlessly compatible with Arduino and Raspberry Pi for next-level smart automation.
- • **Precision Motion Activation:** Customize delay from half a second to over 3 minutes for perfect timing.
- • **Universal Voltage Compatibility:** Works seamlessly with 4.5V to 20V power sources—ideal for diverse DIY projects.

## Overview

The Stemedu HC-SR501 PIR Infrared Motion Sensor is a versatile, energy-efficient module designed for Arduino and Raspberry Pi users. Featuring an adjustable delay time from 0.5 to 200 seconds, a wide operating voltage range of 4.5 to 20V, and a detection angle under 100°, it reliably detects human movement to trigger devices. Its low power consumption (<50µA) and easy integration make it a top choice for smart home automation, animatronics, and security projects.

## Description

desertcart.com: Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi : Electronics

Review: Halloween animatronics - After a couple of decades, I decided to build some new life size figures using some of the latest sensors, relays, and motors. I'm using the HC-SR501 sensors to initiate the animatronics, and found a couple of issues. They work w/o issue, and will continue their use. I also wanted to incorporate a flame bulb that will go in the medieval torch I built out of PVC pipe/fittings, EVA foam, and modelling paste. Regardless of the input voltage, the HC-SR501 output trigger voltage is only 3.3V-3.4V DC. This means I can only use 5V DC opto-relays, instead of 12V opto-relays as their trigger voltage is >4.5V DC. This required making a 5V circuit to power the HC-SR501 and the relays. The video shows the DC-DC Buck converters (blue LEDs) and the 5V DC opto-relays (red LEDs) driving the HC-SR501, one motor, and the flame bulb. The simplified schematic shows the wiring layout I made with applied voltages. The second issue to note with the HC-SR501 is the delay pot. It only takes a 10 degree turn of the pot to go from the minimum delay time of one second to 25 seconds. Their sensitivity is very good. I have yet to try adding a thermistor to the HC-SR501 to test its night time capabilities. FYI: I'm using the B0CMXCZX9Y nylon standoffs (via desertcart) to mount all of these boards. UPDATE: I'm holding back from installing a thermistor. Low light sensitivity is excellent.
Review: As per the HC-SR501 data sheet, stops detecting as temperature approaches 30 degrees celsius - As per the HC-SR501 data sheet, stops detecting ("detection range is shorter") as temperature approaches 30 degrees celsius (approximately 90 degrees fahrenheit). These units have the through-holes to add a thermistor to improve high temperature performance, if one has a thermistor to add. The real test is if starts detecting again when the temperature drops. I plan to drop my score one star for each unit that permanently fails on me. Worked just fine the first three days I had it connected. Easy to set up. Pins fit well into female Dupont wires for prototyping.

## Features

- HC-SR501 Delay Time: 0.5-200S (adjustable), the range is (0.xx second to tens of second), the delay time can be adjusted by using the potentiometer on the HC-SR501 motion sensor.
- Operating voltage range: DC 4.5-20V; Quiescent Current: <50uA; Trigger: L can not be repeated trigger/H can be repeated trigger (Default repeated trigger)
- Automatically and quickly turn on home devices by detected HC-SR501 motion sensor.
- HC-SR501 motion sensor is an economic hightech products. It is widely used.
- Angle Sensor: <100 ° cone angle Lens size

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07KBWVJMP |
| Batteries Included? | No |
| Batteries Required? | No |
| Battery Description | battery not included |
| Best Sellers Rank | #46,530 in Electronics ( See Top 100 in Electronics ) #157 in Motion Detectors (Electronics) |
| Brand | Stemedu |
| Color | Green, White, Yellow |
| Compatible Devices | Arduino, Raspberry Pi |
| Customer Reviews | 4.4 4.4 out of 5 stars (355) |
| Date First Available | November 8, 2018 |
| Description Pile | battery not included |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 2.12 ounces |
| Item model number | 3216550596 |
| Manufacturer | Stemedu |
| Maximum Range | 21 Feet |
| Mounting Type | Wall Mount |
| Operating Temperature | 30 Degrees Celsius |
| Part Number | ST0057X5 |
| Power Source | Electric |
| Product Dimensions | 7.87 x 3.15 x 5.91 inches |
| Temperature Range | 3E+1 Degrees Celsius |
| UPC | 747356632386 |

## Product Details

- **Brand:** Stemedu
- **Color:** Green, White, Yellow
- **Item Weight:** 60 Grams
- **Maximum Range:** 21 Feet
- **Power Source:** Electric

## Images

![Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi - Image 1](https://m.media-amazon.com/images/I/31NfRoxEy6L.jpg)
![Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi - Image 2](https://m.media-amazon.com/images/I/31cr6Ave8IL.jpg)
![Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi - Image 3](https://m.media-amazon.com/images/I/31njIgpeWjL.jpg)
![Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi - Image 4](https://m.media-amazon.com/images/I/4147blG9KsL.jpg)
![Stemedu 5pcs HC-SR501 PIR Infrared Motion Sensor Human Body IR Movement Detector Sensor Module for Arduino for Raspberry Pi - Image 5](https://m.media-amazon.com/images/I/417mpRvgHhL.jpg)

## Questions & Answers

**Q: Is there a place to add photo resistor in the board?**
A: It's configured with a photo resistor so it doesn't trigger during daylight.  In my application I want mine to trigger anytime someone enters the bathroom, so I jumped it out of circuit.  If you hold the board with the potentiometers up there is a row of resistors just below them.  The one on the right being the photo transistor.  The the body is clear, so it can detect light, that makes it easy to spot.  It's placement on the opposite side of the board than that of the sensor, kind of makes it worthless.

**Q: Is this affected by heat?  i have an am312 that throws false positives when my hvac turns on.**
A: Yes, the Passive InfraRed (PIR) sensor detects hot things moving. If your HVAC moves hot air in front of the detector, it should be detected.

**Q: What does it need to be powered up? like 5v 12v or ac voltage.**
A: Hello, the operating voltage range of this HC-SR501 motion sensor is DC 4.5-20V

**Q: What is the spacing on the 3 header pins? (Ground, Signal, Power)**
A: It is 2.54mm pitch on the 3 header pins.
Thanks

## Customer Reviews

### ⭐⭐⭐⭐⭐ Halloween animatronics
*by P***N on January 4, 2024*

After a couple of decades, I decided to build some new life size figures using some of the latest sensors, relays, and motors. I'm using the HC-SR501 sensors to initiate the animatronics, and found a couple of issues. They work w/o issue, and will continue their use. I also wanted to incorporate a flame bulb that will go in the medieval torch I built out of PVC pipe/fittings, EVA foam, and modelling paste. Regardless of the input voltage, the HC-SR501 output trigger voltage is only 3.3V-3.4V DC. This means I can only use 5V DC opto-relays, instead of 12V opto-relays as their trigger voltage is >4.5V DC. This required making a 5V circuit to power the HC-SR501 and the relays. The video shows the DC-DC Buck converters (blue LEDs) and the 5V DC opto-relays (red LEDs) driving the HC-SR501, one motor, and the flame bulb. The simplified schematic shows the wiring layout I made with applied voltages. The second issue to note with the HC-SR501 is the delay pot. It only takes a 10 degree turn of the pot to go from the minimum delay time of one second to 25 seconds. Their sensitivity is very good. I have yet to try adding a thermistor to the HC-SR501 to test its night time capabilities. FYI: I'm using the B0CMXCZX9Y nylon standoffs (via Amazon) to mount all of these boards. UPDATE: I'm holding back from installing a thermistor. Low light sensitivity is excellent.

### ⭐⭐⭐⭐⭐ As per the HC-SR501 data sheet, stops detecting as temperature approaches 30 degrees celsius
*by A***R on July 28, 2020*

As per the HC-SR501 data sheet, stops detecting ("detection range is shorter") as temperature approaches 30 degrees celsius (approximately 90 degrees fahrenheit). These units have the through-holes to add a thermistor to improve high temperature performance, if one has a thermistor to add. The real test is if starts detecting again when the temperature drops. I plan to drop my score one star for each unit that permanently fails on me. Worked just fine the first three days I had it connected. Easy to set up. Pins fit well into female Dupont wires for prototyping.

### ⭐⭐⭐⭐ Interesting Product with Many Real-World Uses
*by J***5 on August 10, 2025*

I set up 2 different doppler motion sensors using these HR-SC501 PIR sensors, one using an Arduino microprocessor and one without. Both worked as advertised, tho the range and sensitivity with the Arduino was much better.

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-27*