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 Power Failure Auto Switching Lithium Battery Module is designed to help switch power between a main supply and a backup lithium battery source. It is useful for projects that need backup power when the main input is cut off or unstable.
This module supports DC 5V to 48V systems and can handle up to 10A load. Its compact size makes it easy to add to DIY electronics, backup power builds, control boxes, and battery-powered projects.
Great for makers, repair work, and custom power setups where a backup supply is needed during power loss.
Features:
Auto switching function for power failure setups
Supports DC 5V to 48V
Up to 10A load
Compact 61 × 30 × 18mm size
Lightweight 22g build
Model: YX850
Mounting hole spacing: 23mm
Suitable for lithium battery backup projects
Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.
Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.
Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.
Most parts work with common maker boards — check the description for specific pinout / voltage notes. If you're unsure, send us a message before ordering.
7-day inspection window for DOA units. Email proof of issue and we'll ship a replacement or refund. Used / installed parts are not returnable unless faulty.
Yes — questions land on our forum or via email, weekday or weekend. We've actually wired up most of what we sell.
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 →