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 →Raspberry Pi Pico H, the RP2040 board with pre-soldered 0.1" headers and a 3-pin debug header. Ready to drop into a breadboard or wiring panel, so no soldering step for most tutorials and HATs.
Dual-core Cortex-M0+, 264 kB SRAM, 2 MB flash, and versatile I/O for sensor hubs, robots, automation, and classroom labs.
| Microcontroller | RP2040 dual-core Arm Cortex-M0+ |
| Clock speed | Up to 133 MHz |
| SRAM | 264 kB |
| Flash | 2 MB on-board |
| GPIO | 26 multi-function pins (3.3V logic) |
| Interfaces | 2 × SPI, 2 × I²C, 2 × UART, 3 × 12-bit ADC, 16 × PWM |
| USB | Micro-USB 1.1 (host/device) |
| Headers | 0.1" dual headers + 3-pin debug header, pre-soldered |
GPIO runs at 3.3V even though the board is powered from 5V. Keep per-pin and total GPIO current within RP2040 datasheet limits.
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 →