Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Brand | Youxin Electronics |
| Model Number | JSN-SR04T |
| Operating Voltage | DC 5V |
| Detection Range | 2cm to 450cm |
| Beam Angle | 15 degrees |
| Interface Type | UART / TTL |
| Waterproof Rating | IP67 |
| Operating Temperature | -20°C to +70°C |
| Dimensions | 23mm x 45mm x 12mm |
| Application | Reverse Parking, Obstacle Avoidance, Liquid Level Detection |
Anonymous
Mar 30, 2026
Rating: 4/5
Good value, easy to integrate
Integration was straightforward using the UART interface. It's slightly larger than the standard HC-SR04 but the build quality justifies the size. Works well in outdoor conditions.
Anonymous
Mar 28, 2026
Rating: 4/5
Solid performance
Great sensor for the price. The only minor downside is that the cable could be a bit longer for some automotive applications, but an extension solves that easily.
Anonymous
Mar 22, 2026
Rating: 5/5
Perfect for my Arduino parking project
This sensor works flawlessly with my microcontroller setup. The waterproof casing is a huge plus since I mounted it on the back of my RC car. Distance readings are consistent and stable.
Anonymous
Mar 16, 2026
Rating: 5/5
Exceeded expectations
I was worried about false positives, but the JSN-SR04T filters noise very well. It ignores small obstacles effectively while detecting walls and cars reliably.
Anonymous
Mar 14, 2026
Rating: 5/5
Reliable obstacle avoidance
We used ten of these modules for our university robotics competition. They handled dust and minor water splashes without any issues. Highly recommended for educational projects.
Anonymous
Mar 02, 2026
Rating: 5/5
Accurate reverse radar
Built a custom reverse parking aid for my old sedan. This module provides accurate distance data up to 4 meters. The signal is clean and doesn't jitter like cheaper alternatives.
Q: How do I calibrate the sensor for temperature changes?
A: The speed of sound varies with temperature. For high precision, you should read the ambient temperature using a separate sensor (like DHT11) and adjust the calculation formula in your code accordingly. The module itself does not have a built-in temperature compensator.
Q: What is the minimum detection distance?
A: The minimum reliable detection distance is approximately 2cm. Objects closer than this may not be detected accurately due to the ringing effect of the ultrasonic transducer.
Q: Does it come with mounting brackets?
A: No, the package includes only the sensor module and the connecting cable. Mounting brackets or adhesive pads need to be purchased separately based on your specific installation needs.
Q: Can this be submerged in water?
A: The module has an IP67 rating, meaning it can withstand temporary immersion in water up to 1 meter for 30 minutes. It is designed for rain and splashes, but prolonged submersion is not recommended for long-term durability.
Q: Is this compatible with Raspberry Pi GPIO?
A: Yes, it is compatible. However, since it uses a UART interface, you will need to connect the TX/RX pins correctly and may require a logic level converter if your Pi operates at 3.3V strictly, though many users report success directly due to tolerance.
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