Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | HC-SR501 |
| Operating Voltage | DC 4.5V - 20V |
| Detection Angle | < 120 degrees cone angle |
| Detection Distance | 3 to 7 meters (adjustable) |
| Trigger Mode | L (Low) and H (High) selectable via jumper |
| Delay Time | 5s to 300s (adjustable potentiometer) |
| Blocking Time | 2.5s (default, adjustable) |
| Output Signal | 3.3V High level / 0V Low level |
| Dimensions | 32mm x 24mm |
| Operating Temperature | -15°C to +70°C |
Anonymous
Mar 27, 2026
Rating: 4/5
Good sensitivity, needs calibration
The module is sensitive and picks up motion well. I had to tweak the potentiometers a bit to stop false triggers from my ceiling fan, but once set, it works great.
Anonymous
Mar 25, 2026
Rating: 5/5
Excellent for learning electronics
Bought this for a university project on smart lighting. The documentation online is plentiful, and the module itself is robust. Highly recommended for beginners.
Anonymous
Mar 22, 2026
Rating: 5/5
Best PIR sensor in this price range
I have tried several brands, and this HC-SR501 offers the best stability. The warm-up time is reasonable, and the output signal is clean for microcontrollers.
Anonymous
Mar 18, 2026
Rating: 4/5
Solid performance
Works as advertised. The L/H trigger mode selection is a nice feature that adds flexibility. Only giving 4 stars because the pins were slightly bent upon arrival, but easily fixed.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for Arduino projects
This sensor works flawlessly with my Arduino Uno. The detection range is accurate, and the delay time adjustment is very smooth. Great value for money.
Anonymous
Mar 06, 2026
Rating: 5/5
Reliable and compact
Small footprint makes it easy to hide in enclosures. I've used three of these for different rooms, and they all perform consistently. No issues so far.
Q: Does this come with headers pre-soldered?
A: Typically, these modules are shipped with unsoldered pins to allow for flexible mounting options. You will need to solder the 3-pin header yourself.
Q: Is this compatible with Raspberry Pi GPIO?
A: Yes, it is compatible. Since the output is 3.3V high, it connects directly to Raspberry Pi GPIO pins without needing a level shifter. Just ensure you connect VCC to 5V and GND to Ground.
Q: Can this sensor detect motion through glass?
A: No, standard PIR sensors like the HC-SR501 cannot detect infrared radiation through glass. It requires a direct line of sight or an open window.
Q: How do I adjust the detection distance?
A: There is a potentiometer labeled 'Distance' on the board. Turn it clockwise to increase the range and counter-clockwise to decrease it. Test in your specific environment for best results.
Q: What is the maximum current this module can handle?
A: The output pin is designed for logic signals (approx. 3.3V) and should not be used to drive high-current loads directly. Please use a relay or transistor to control devices like lamps or motors.
Shanlian Hubei Brush Small Perfect Brush Washer - Ceramic Ink Dish, Calligraphy Cleaning Tool, Moisturizing Water Pot, Art Supply Decor
$14.20
Yanyu Mineral Water Fish Tank Stand - Triangular Bracket for Inverted Bottle Self-Made Water Circulation System
$17.05
Jingdezhen Pink Peony Flourishing Tea Canister Ceramic Lidded Loose Tea Storage Jar CYG-4578 One Jin Capacity Pu'er
$450.60
Round Sponge Brush Stamp with Mushroom Head – Printing Tool for Kindergarten Art and Kids' Crafts
$0.27
Metal Wick Centering Tool with Wooden Base for DIY Scented Candle Making
$1.28
Custom Temporary Bank Account Opening Sign, Company Signboard, Stainless Steel Door Plate, PVC Simple Plaque, Acrylic Advertising Board
$15.20
Natural Raw Crystal Diffuser Stones 500g - Same Style as Certain Summer Brand, Flameless Indoor Decor (White, Green, Purple, Yellow, Black, Blue)
$10.20
Iron Chain, Flower Pot Hanging Chain with Iron Rings, Black Suspension Chain for Bird Cages and Garden Planters
$0.10
Sheepskin Rattle with Brass Bells - Handmade Wooden Peach Wood Baby Toy for Chewing, Perfect for Children's Day
$10.80
Commercial Square Insulated Warmer Cabinet with Constant Temperature Heating, Countertop Display Case for Roast Duck, Chicken, Fried Chicken, Smoked Goose, and BBQ Meat
$338.00
PISEN Desktop Cable Organizer - Magnetic Data Cord Manager, Soft Silicone Fixed Wire Winder with Adhesive Clips, Mini Portable Hub
$10.10
Handcrafted Peach Wood and Sheepskin Rattle with Brass Jingle Stick – Traditional Chewable Wooden Baby Toy
$74.00
DC Drive DCS550-S02-0050-05-00-00
$10,838.20
Waterproof Storage Bag for Clothes and Bathroom Use, Large-Capacity Drawstring Organizer for Men and Women, Outdoor Travel and Toiletry Pack
$39.90
Steel Speed Bump with Rubber Surface for Cars and Railways
$3,668.00
Huaboshi Thickened Resin Vegetable Planter Box – Rectangular Plastic Balcony Grow Container with Drainage Tray
$45.99
New Data Cable Storage Bag Travel Digital Charger Cord Organizer Protective Visible Multi-Use Portable Case
$1.64
Press Wash Blade for KBA Printing Presses - Model KBA105 Ink Scraper, 1160*40mm
$40.50
Genuine Pirelli Run-Flat Car Tire P7 225 245 275 285/35 40 45 R18 19 20 21
$336.00
Chuangshidai 100XP Compact Desktop Fume Extractor for Soldering Irons - Rapid Smoke Purification
$696.00
Multi-Function Kitchen Sink Rack - Dish Drying Organizer for Bowls and Plates
$33.10
Water Brush Kids Water Painting Book Graffiti Special Pen Water Sketchbook Eco-Friendly Safe Tap Water Refillable Pen Set
$2.16
No-Drill Over-Toilet Storage Rack for Bathroom Restroom Organizer
$8.90
Jingdezhen Blue and White Porcelain Antique Brush Washer, Traditional Chinese Painting Calligraphy Brush Rinse Basin, Large and Small Water Pots
$16.90
Sketch Blending Stump Set for Art Students - Highlight Detail Shadow Tool Kit with Replacement Sponge Heads for Beginners
$9.00
Changyiyou Outdoor Large-Capacity Wheeled Duffel Bag - Thickened Storage Backpack with Wheels for Camping Gear and Travel
$109.00
Lightweight Waterproof Dry Bag for River Trekking and Rafting – Travel Storage for Clothes, Shoes, Socks with Moisture-Proof Buckle, Roll-Top Carry Design
$15.80
Tupai 3D Self-Adhesive Wall Stickers, Custom Acrylic Logo Advertising Letters for Signage, Background Walls, and Image Wall Decor
$8.50
Durable Replacement DEUBLIN 525/357 Water Inlet/Outlet Rotary Union for Curved Surface Printing and Cup Printing Machines
$300.00
Detachable Large Water Barrel Rack for Mineral and Purified Water, Office Bottled Water Storage Stand with Wheels
$136.00
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
