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 →Description:
The XY-J04 Double MOS Tube Control Board is a versatile electronic module designed for controlling high-power devices such as motors, lights, or heaters. It features a 4-digit LED display for showing timing or status, tactile push buttons for setting parameters, and dual high-power MOSFETs for efficient switching. The board includes blue terminal blocks for easy wiring and mounting holes at the corners for secure installation. This module is commonly used in DIY electronics, automation systems, and Arduino or microcontroller projects.
Key Features:
• Voltage Input: Usually supports 6V–30V DC (pero depende sa specs ng seller)
• Control Mode: Multiple timing modes (e.g., delay on, delay off, cycle timing)
• Output: High current output using dual MOSFETs
• Display: Built-in 3-digit 7-segment LED display for showing time values
• Buttons: 4 programmable buttons for setting timing modes and values
• Compact design: Ideal for DIY electronics, Arduino projects, and automation control
Common Uses:
• Auto start/stop delay for machines
• Timer for battery chargers or fans
• Delay switch for lights
• Arduino/ESP projects that need timed output
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 →