Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Operating Voltage | 3.3V - 5V DC |
| Detection Range | 0V - 30V DC |
| Output Signal | Digital (High/Low) |
| Interface Type | Standard 3-Pin Header |
| PCB Dimensions | 24mm x 16mm x 4mm |
| Indicator | Red LED Status Light |
| Compatibility | Arduino, Raspberry Pi, ESP32 |
| Material | FR-4 Fiberglass PCB |
| Weight | 2.5 grams |
| Package Contents | 1x Voltage Detection Module |
Anonymous
Mar 28, 2026
Rating: 5/5
Reliable sensor
I bought five of these for a classroom kit. All of them worked out of the box without any calibration needed. Highly recommended for educational use.
Anonymous
Mar 23, 2026
Rating: 4/5
Good value for money
Solid build quality and easy to integrate. The only reason I didn't give 5 stars is that the documentation could be slightly more detailed for beginners.
Anonymous
Mar 04, 2026
Rating: 4/5
Compact and effective
Small footprint makes it easy to fit into tight enclosures. Works well with 3.3V logic levels which was a requirement for my ESP32 project.
Anonymous
Mar 02, 2026
Rating: 5/5
Fast response time
The digital output switches very quickly when voltage is detected. Ideal for safety cutoff circuits in DIY battery packs.
Anonymous
Mar 02, 2026
Rating: 5/5
Exceeded expectations
Very stable readings even with slight voltage fluctuations. The soldering points are large enough for easy manual wiring if you don't use headers.
Anonymous
Mar 01, 2026
Rating: 5/5
Perfect for my Arduino projects
This module works exactly as described. It detects voltage changes instantly and the LED indicator is very bright. Great for building custom power monitoring systems.
Q: Can I adjust the sensitivity threshold?
A: This specific model has a fixed threshold determined by the onboard comparator circuit. For adjustable thresholds, please check our potentiometer-based sensor series.
Q: Is a library required for Arduino?
A: No external library is needed. You can read the digital pin state using the standard digitalRead() function in your sketch.
Q: What is the maximum current this sensor can handle?
A: This is a voltage detection module with high impedance input, so it draws negligible current (microamps). It does not switch high loads directly.
Q: Does it come with jumper wires?
A: The package includes the module only. Jumper wires and headers are sold separately, though the module usually comes with pre-soldered pins depending on the batch.
Q: Can this module detect AC voltage?
A: No, this module is designed specifically for DC voltage detection only. Using it with AC sources may damage the component.
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