Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | HC-SR04 / US-015 |
| Operating Voltage | DC 5V |
| Static Current | < 2mA |
| Measuring Range | 2cm - 400cm |
| Resolution | 0.3cm |
| Viewing Angle | 15 degrees |
| Trigger Input Signal | 10uS TTL pulse |
| Material | PCB and Plastic Bracket |
| Compatibility | Arduino, Raspberry Pi, STM32 |
| Package Includes | 1x Sensor Module, 1x Mounting Bracket |
Anonymous
Mar 22, 2026
Rating: 5/5
Reliable and sturdy
We ordered ten of these for our makerspace workshop. All units tested working out of the box. The plastic bracket feels durable enough for repeated use by students. Highly recommend for educational settings.
Anonymous
Mar 18, 2026
Rating: 4/5
Good value bundle
The sensor itself is standard HC-SR04 quality, which is reliable. The included bracket is a nice touch and saves time designing a custom mount. Only giving 4 stars because the pins were slightly bent upon arrival, but easy to fix.
Anonymous
Mar 11, 2026
Rating: 5/5
Perfect for Arduino Projects
This sensor works flawlessly with my Arduino Uno. The bracket makes it much easier to mount on my robot chassis compared to buying the sensor alone. Distance readings are consistent and accurate within the specified range.
Anonymous
Mar 09, 2026
Rating: 5/5
Great for school projects
Bought this for a university robotics assignment. It arrived quickly and the documentation provided in the listing helped me get started immediately. The ranging accuracy is sufficient for obstacle avoidance tasks.
Anonymous
Mar 08, 2026
Rating: 4/5
Works as expected
Standard ultrasonic sensor performance. The bracket fits well but requires small screws that weren't included, so make sure you have some M2 or M3 hardware handy. Otherwise, no complaints about functionality.
Anonymous
Mar 04, 2026
Rating: 5/5
Excellent precision
I was surprised by how stable the readings are even in a room with some background noise. The combination of the sensor and the specific bracket model makes assembly very fast. Will buy again for future prototypes.
Q: Do you offer a bulk discount for purchasing 50 units?
A: Yes, we offer tiered pricing for bulk orders. Please contact our sales team directly through the 'Contact Seller' button for a custom quote on 50+ units.
Q: What are the dimensions of the mounting bracket?
A: The bracket is designed specifically for the HC-SR04 form factor. It measures approximately 45mm x 20mm with screw holes spaced to match the sensor's mounting points.
Q: Can this sensor work with 3.3V logic boards like ESP32?
A: Yes, it can work with 3.3V boards, but since the sensor operates at 5V, we recommend using a logic level converter or a voltage divider for the echo pin to ensure safety and stability.
Q: Does this come with jumper wires to connect to the board?
A: No, this package includes only the ultrasonic sensor module and the mounting bracket. Jumper wires are sold separately.
Q: Is the measurement affected by sunlight or outdoor use?
A: Ultrasonic sensors generally work outdoors, but strong wind or extreme temperatures may affect accuracy. Direct sunlight does not interfere with ultrasonic waves as it does with infrared sensors.
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