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 →If you're looking for a fully-featured Raspberry Pi 4 case, then look no further than the Argon ONE Pi 4 Raspberry Pi Case. In addition to providing passive and active cooling to keep the Pi 4 running cool, it incorporates multiple pieces to allow for access to different levels of the board like a magnetic dedicated door for the 40 pin connector that provides pin numbers and labels. An included fan HAT provides software controllable, active cooling while the aluminum enclosure provides passive cooling through two extrusions that provide a heat sink for the ICs onboard (thermal tape included). An additional interface board plugs into the Pi and redirects all the connectors (outside of the 40 pins) to one side of the enclosure. But probably the best feature is a properly configured power button that provides the ability to safely shut down, reboot, or force shutdown the Pi.
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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.
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