Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 5V DC |
| Detection Range | 2cm - 400cm |
| Accuracy | ±3mm |
| Beam Angle | 15 degrees |
| Trigger Input Signal | 10µS TTL pulse |
| Echo Output Signal | TTL level signal proportional to distance |
| Dimensions | 45mm x 20mm x 15mm |
| Mounting Hole Diameter | 2.5mm |
| Operating Temperature | -15°C to +70°C |
| Compatibility | Arduino, Raspberry Pi, STM32 |
Anonymous
Mar 27, 2026
Rating: 5/5
Easy to use for beginners
I am new to electronics and this was my first sensor. Plenty of tutorials online helped me get it running in under an hour. Very satisfied with the purchase.
Anonymous
Mar 12, 2026
Rating: 5/5
Great for university projects
Bought five of these for our final year project. All units performed consistently. The detection angle is narrow enough to avoid false positives from side walls in our test corridor.
Anonymous
Mar 07, 2026
Rating: 4/5
Good accuracy, minor wiring confusion
The sensor itself is very reliable for obstacle avoidance. I deducted one star because the pinout diagram on the box was slightly faded, but once I found the datasheet online, it worked perfectly.
Anonymous
Mar 06, 2026
Rating: 4/5
Solid performance
Works well for a simple parking assist system I built in my garage. Occasionally gives a weird reading if the surface is too soft (like a curtain), but that is expected with ultrasonic technology.
Anonymous
Mar 05, 2026
Rating: 5/5
Perfect for robotics projects
This ultrasonic sensor works flawlessly with my Arduino Uno. The range is accurate up to 4 meters as advertised, and the code library examples made integration very easy. Great value for the price.
Anonymous
Mar 01, 2026
Rating: 5/5
Lightweight and responsive
Used this for a custom drone altitude hold feature. It responds quickly and the weight is negligible. Highly recommend for anyone building DIY drones or RC cars.
Q: What is the maximum update rate for distance readings?
A: To ensure accurate measurements and avoid echo interference, we recommend a measurement cycle of at least 60ms. This allows sufficient time for the sound wave to travel the maximum range and return.
Q: Is a 3.3V logic level compatible with this module?
A: The module operates at 5V. While some users report success with 3.3V microcontrollers, we recommend using a logic level converter for the Trigger and Echo pins to ensure stable and safe operation.
Q: Can this sensor detect transparent objects like glass?
A: Ultrasonic sensors generally struggle with soft or transparent materials like glass or thin plastic because sound waves pass through or are absorbed rather than reflected. It works best on solid, hard surfaces.
Q: Can I use multiple sensors on one board without interference?
A: Yes, you can use multiple sensors, but you must trigger them sequentially rather than simultaneously. Triggering them at the same time will cause cross-talk where one sensor picks up the echo from another.
Q: Does this come with jumper wires?
A: No, the package includes only the ultrasonic sensor module. Jumper wires and mounting hardware are sold separately or may be included depending on the specific kit bundle you purchased.
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