Fingerprint Sensor AS608 - A Beginner's Guide
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →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).
| 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 |
This sensor is a good fit for general sensing, logging, and automation builds.
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard or jumper wires for quick setup and testing.
Useful add-ons include breadboards, jumper wires, displays, enclosures, and logging modules, depending on how you plan to power, mount, and log the sensor.
| 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 |
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.
1 × USB Power Detector 3-10V 0-3A
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Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan.
read tutorial →Wire a joystick to your Arduino, read X/Y, then print UP / DOWN / LEFT / RIGHT to the serial monitor.
read tutorial →Bench-test a 43 A motor driver before wiring the full project. Catches weak power, mis-pinning, and dead boards before they cost you time.
read tutorial →Coming from UNO and the Pico won't show a COM port? Here's the BOOTSEL trick, the driver fix, and the first sketch that actually works.
read tutorial →Share what you built. Photos, BOM, what worked, what didn't.
view thread →Symptom + what you tried + clear photo = answers within hours.
view thread →Brownout reset when adding a sensor? Notes on supply decoupling and GPIO checks.
view thread →Upload failing on your first Uno? Driver, COM port, board match — checklist inside.
view thread →