Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | DC 3.3V - 5V |
| Detection Range | 2cm - 400cm |
| Measuring Angle | 15 degrees |
| Trigger Input Signal | 10µS TTL pulse |
| Echo Output Signal | TTL level signal proportional to distance |
| Resolution | 0.3cm |
| Dimensions | 45mm x 20mm x 15mm |
| Interface Type | 4-Pin Header (VCC, Trig, Echo, GND) |
| Compatibility | Arduino, Raspberry Pi, STM32, ESP8266 |
| Package Contents | 1x HC-SR04 Sensor Module |
Anonymous
Mar 27, 2026
Rating: 5/5
Perfect for Arduino Robotics
This sensor works flawlessly with my Arduino Uno project. The distance readings are consistent and the code libraries available online make integration very easy. Great value for the price.
Anonymous
Mar 17, 2026
Rating: 4/5
Good accuracy, needs stable voltage
The module performs well within the specified range. I noticed some fluctuation when powering it directly from a weak USB port, but once connected to a stable 5V source, it became very reliable.
Anonymous
Mar 09, 2026
Rating: 5/5
Bulk buy for our club
Purchased ten of these for our high school robotics club. All units arrived in perfect condition and functioned immediately. Excellent durability even with student handling.
Anonymous
Mar 06, 2026
Rating: 5/5
Essential for learning embedded systems
Bought this for my university final year project. It's robust, easy to wire, and the documentation is clear. Highly recommend for beginners starting with ultrasonic sensing.
Anonymous
Mar 02, 2026
Rating: 5/5
Compact and lightweight
Used this on a small DIY drone for altitude hold. The size is perfect and it doesn't add much weight. Response time is quick enough for basic obstacle avoidance.
Anonymous
Mar 01, 2026
Rating: 4/5
Works as advertised
No complaints here. It measures distance accurately up to about 3 meters in my testing. Beyond that, it gets a bit noisy, but that is expected for this price point.
Q: Can this sensor work with a 3.3V microcontroller like the ESP32?
A: Yes, the HC-SR04 operates between 3.3V and 5V. However, ensure your microcontroller's logic levels are compatible; sometimes a voltage divider is recommended for the Echo pin when using 3.3V boards to prevent damage.
Q: Does this come with jumper wires?
A: No, this package includes only the HC-SR04 sensor module. Jumper wires are sold separately.
Q: How do I handle multiple sensors on one board?
A: You can use multiple sensors by connecting their VCC and GND in parallel, but each sensor must have its own dedicated Trigger and Echo pins connected to different GPIO pins on your microcontroller. You should also trigger them sequentially with a small delay to avoid interference.
Q: Is this sensor waterproof?
A: No, the standard HC-SR04 module is not waterproof. It should only be used in dry, indoor environments. For outdoor or wet conditions, please look for our waterproof ultrasonic sensor models.
Q: What is the minimum detection distance?
A: The minimum measurable distance is approximately 2cm. Objects closer than this may not be detected reliably or may return incorrect values.
Universal 5800 Super Glue for Plastic, Metal, Glass, and Wood, 10-Second Fast Curing
$2.01
White Noise Wood Chip Core Grid Scented Candle Wooden Core S-Type Brand Name Candle Container Soy Candle Core Wood
$1.50
Zunjue 100% Cotton Paper Block 300g Watercolor Paper, Fine/Medium Grain, Thickened 80 Sheets, Neutral Acid-Free Journal Paper for Art Students, Beginners, Watercolor, Colored Pencil, Pen, Light Wash, Marker
$27.20
Outdoor Waterproof Dry Bag for Rafting and Creek Walking - Large Capacity Backpack for Swimming, Hiking, Diving, and Flood Rescue
$132.00
Lukang 995 Door and Window Fast-Drying Glass Sealant - Transparent Weather-Resistant Neutral Silicone Structural Adhesive
$222.90
Large Flip-Type Water Draining and Air Drying Machine, Fully Automatic Air Knife Blower for Vegetables, Commercial Continuous Drying Equipment
$15,282.00
Large Capacity Household Quilt Storage Bag - Waterproof and Moisture-Proof Duvet Organizer for Moving, Packing, and Luggage Sorting
$5.88
Scented Candle Aluminum Alloy Turntable 360-Degree Rotating Double-Sided Silent Non-Slip Small Turntable for Cake Decorating and DIY
$30.40
Ceramic Five Oxen Painting Brush Washer – Antique-Style Ink Well for Calligraphy & Traditional Painting
$16.90
Liupintang 3-in-1 Brush Washing Bucket with Palette - Portable Handheld Multi-Function Art Tool for Chinese Painting, Watercolor, and Gouache, Foldable Small Pail
$17.80
ZGT Type Damped Spring Vibration Isolator for Large Equipment such as Chillers and Diesel Generator Sets
$135.00
Shanlian Lake Brush Wool Felt Mat for Calligraphy and Painting, Washable Desk Pad for Beginners
$22.70
New Silicone Data Cable Protector, Anti-Break and Anti-Bite Cord Organizer for Charging Lines and Headphones, Universal Phone Accessory
$5.58
Cafeteria Bulb Vegetable Cutter - Complete Kelp Shredding Production Line, All-in-One Slicing, Dicing, and Shredding Machine
$10,000.00
Electric Water Dispenser Pump for Bottled Mineral Water - Automatic Press-Type Purified Water Pump Manufacturer
$113.00
Heavy-Duty Industrial Wiping Cloths for Auto Painting, Baking, Film Application, Detailing, and Degreasing – Absorbent, Oil-Removing, Lint-Free Paper and Cloth
$120.00
6-Cavity Oval Beehive Silicone Mold for DIY Handmade Soap - Heat-Resistant Non-Stick Large Mold for Milk and Essential Oil Soaps
$4.93
Data Cable Organizer Bag with Zipper for Charging Cables and Adapters - Dustproof Desktop Storage
$5.90
Auby Baby Rattle Toy for 6+ Months, Chewable Wave Drum and Shaker for Newborns and Toddlers
$24.90
Preferred 45L Industrial Pulping Machine Spinach Fresh Pulp Galangal Carrot Tomato Sauce Making Fruit and Vegetable Industry Blender
$7,632.00
KAD Professional Thickened Sketch Blending Stump - Dual-Head Smudging Pen for Art Students
$9.90
Beijing Imported Dental Implant Package - Appointment Booking, X-Ray, and Treatment Plan Included
$1.00
![Huahu [Top Layer Cowhide] Japanese-Style Men's Genuine Leather Belt, Simple Casual Business Wide Belt with Automatic Buckle](https://www.gosteppe.com/cache/small/product/269537/legacy-main-e3e965ff85d9032ca79f72b8.webp)
Huahu [Top Layer Cowhide] Japanese-Style Men's Genuine Leather Belt, Simple Casual Business Wide Belt with Automatic Buckle
$423.00
Wall-Mounted Towel Storage Box Large Capacity for Bathroom
$8.42
Loctite 480/411/403/407/406/414/420/401/415 Heat-Resistant 495 High-Temp 417/416 Instant Adhesive
$26.80
Ulanzi CSS1 Camera Quick-Release Shoulder Strap - Universal Anti-Slip Crossbody Belt for Fujifilm, Sony, and Canon DSLR/Mirrorless Cameras
$109.00
Invisalign Retainer Storage Case Portable Travel Container for Clear Aligners Dentures Orthodontic Appliances Cleaning Q
$6.59
70*275mm Flocked Abrasive Pad Circular Backing Sanding Disc Polishing Sheet Self-Adhesive Scouring Pad Brushed Finish Cloth
$4.05
50/100 Pairs Men's Foot Therapy Short Socks - Odor-Resistant, Low-Cut, Summer Thin, Disposable Street Market Socks
$19.99
Biliansheng No-Shave Hair Transplant - Hairline and Crown Restoration for Men and Women
$100,000.00
![[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)
