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 Voltage Level Indicator KA2284 is an electric current electric potential magnetic sensor module 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 Working voltage: 3.5V-12V.
| Product | Sensor style | Standout |
|---|---|---|
| Voltage Level Indicator KA2284 | electric current electric potential magnetic sensor module | Current item |
| DC Current Sensor INA219 High Side Breakout 26V 3.2A Max | current or power sensor with I2C | I2C interface, motion sensing |
| Current 20A Analog Sensor Gravity | electric current electric potential magnetic sensor module with analog output | analog output, hall-effect detection |
| Current Sensor AC/DC 50A | current or power sensor with analog output | analog output, hall-effect detection |
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 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 | Voltage Level Indicator KA2284 |
|---|---|
| Working voltage | 3.5V-12V |
| PCB board Dimension | 29 (mm) x21 (mm); |
| Category | electric current electric potential magnetic sensors |
Check the pin labels on the Voltage Level Indicator KA2284 and match them to your controller voltage, ground, and signal pins. Keep wiring short and verify the logic level before powering the module.
1 × Voltage Level Indicator KA2284
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
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 →