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 Current 20A Analog Sensor Gravity is an electric current electric potential magnetic sensor module with analog output designed for power monitoring, motor feedback, magnetic detection, and control systems. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.
Key details include Current Range: 0 ~ ±20A DC,0 ~ 17A (RMS) AC; Power Supply: +5.0V; Interface: Gravity PH2.0-3P.
| Product | Sensor style | Standout |
|---|---|---|
| Current 20A Analog Sensor Gravity | electric current electric potential magnetic sensor module with analog output | Current item |
| Current AC Sensor Analog Gravity | electric current electric potential magnetic sensor module with analog output | analog output, remote probe format |
| Current Sensor AC/DC 50A | current or power sensor with analog output | analog output, hall-effect detection |
| DC Current Sensor INA219 High Side Breakout 26V 3.2A Max | current or power sensor with I2C | I2C interface, motion sensing |
This sensor is a good fit for current meters, motor drivers, magnetic door sensing, power dashboards, and fault alerts.
Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard and jumper wires for quick setup and testing.
Useful add-ons include an Arduino or ADC-capable board, jumper wires, and a stable power source, depending on how you plan to power, mount, and log the sensor.
| Product | Current 20A Analog Sensor Gravity |
|---|---|
| Interface | Gravity PH2.0-3P |
| Current Range | 0 ~ ±20A DC,0 ~ 17A (RMS) AC |
| Power Supply | +5.0V |
| Weight | 18g |
| Gravity | Analog 20A Current Sensor x1 |
| Dimension | 39 * 22 * 17mm/ 1.53 * 0.87 * 0.67 inches |
| Relative Error | ±3% |
| Measurement Endure | 220V AC, 311V DC |
Connect power and ground, then read the sensor output with an analog-capable input or external ADC. Stable power and a clean ground help reduce noise.
1 × Current 20A Analog Sensor Gravity
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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 →