shop/ power cables-jacks/ dfrobot usb power detector 3-10v 0-3a

Add Reliable Sensing to Your Next Electronics Build

The USB Power Detector 3-10V 0-3A is a current or power sensor designed for sensing, logging, and automation. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Power supply voltage: 3.2 ~ 10 V; charging voltage output: connect the input with PC and other with phone/tablet to charge; Accuracy: 1% (plus or minus 2 words).

Why you’ll love it

  • Power range: connect the input with PC and other with phone/tablet to charge
  • Current draw: 0 ~ 3 A
  • Expected accuracy: 1% (plus or minus 2 words)
  • Useful spec: 500 ms/or times
  • Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
  • Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards

Compare with similar products

Product Sensor style Standout
USB Power Detector 3-10V 0-3A current or power sensor Current item
USB Mini Microphone pH sensor general-purpose sensing
Photocell mini photo-resistor pH sensor general-purpose sensing

What you can build

This sensor is a good fit for general sensing, logging, and automation builds.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Product USB Power Detector 3-10V 0-3A
data communication connect the input with PC and the other with mobile phone or tablets, you can easily transmiss data between.
charging voltage output connect the input with PC and other with phone/tablet to charge
Power supply voltage 3.2 ~ 10 V
Test current 0 ~ 3 A
Working current < 20 mA
Accuracy 1% (plus or minus 2 words)
Product size 69 * 26 * 19 mm(2.716*1.023*0.75")
Speed 500 ms/or times

Wiring & usage notes

Check the pin labels on the USB Power Detector 3-10V 0-3A and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.

What’s in the box

1 × USB Power Detector 3-10V 0-3A

Frequently Asked Questions

What does the USB Power Detector 3-10V 0-3A measure? It is designed to measure current or power use.
Can I use it with Arduino, ESP32, or Raspberry Pi? Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
Does it need calibration? Yes. Chemical and gas sensors usually need warm-up time, calibration, and periodic checking if you want stable readings.
Is it good for prototyping? Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.

Build with this board

// from learn.circuit.rocks

Notes from the bench

// from blog.circuit.rocks

Ask the community

// from forum.circuit.rocks