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 →USB Micro to USB Tiny OTG Adapter. This super slim, super tiny, and super cute Micro-B to USB on-the-go adapter is so slim, tiny, and cute that we'd pinch its cheeks if it was big enough to have cheeks. At just ~15.5mm long, ~11.3mm wide, and ~2mm, this really is the tiniest little adapter we've probably ever seen.
But don't let the size fool you - this is a perfect and easy way to turn a device or cable with a USB-A to a USB-micro, great for use with OTG devices such as phones, tablets, mini computers, Arduino Zero's, Raspberry Pi Zeros, etc. Just push it into the slot of a USB-A plug and, ta-dah... microUSB!
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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 →