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 having problems interfacing 5V microcontrollers with 3.3V sensors, then this item is perfect for you. The Bi-Directional Level Shifter TXB0104 converts standard logic levels to any other standard level, plus it also automatically detects the direction. Furthermore, it doesn't introduce slew compared to traditional voltage dividers. This item is perfect for special bi-directional interfaces that talk to the microcontrollers in both ways. Note that since the item is bi-directional, it does not have a strong output that can drive LEDs or long cables. If you don't need the bi-direction feature, we suggest using the 74LVX245 instead.
Specifications:
Library: None
Inclusions: 1 x Bi-Directional Level Shifter TXB0104
Documents:
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 →