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 Raspberry Pi Pico H Development Board combines the power of the RP2040 microcontroller with pre‑soldered 0.1″ headers and a convenient debug header. It’s ready to drop into a breadboard, wiring panel, or control box, making it an excellent choice for students, makers, and rapid prototyping.
With a dual‑core Cortex‑M0+, 264 kB SRAM, 2 MB flash, and versatile I/O, this board is a workhorse for sensor hubs, robots, automation systems, and classroom labs that need robust, repeatable hardware.
| Microcontroller | RP2040 dual‑core Arm Cortex‑M0+ processor |
|---|---|
| Clock speed | Up to 133 MHz (programmable) |
| SRAM | 264 kB |
| Flash memory | 2 MB on‑board |
| GPIO pins | 26 multi‑function GPIO pins (3.3 V logic) |
| Interfaces | 2 × SPI, 2 × I²C, 2 × UART, 3 × 12‑bit ADC, 16 × PWM channels |
| USB | Micro‑USB 1.1 (host/device) |
| Supply voltage | 5 V input, 5 V/3.3 V outputs |
| Working current | ≤ 300 mA (typical board supply capability, depending on design) |
| Operating temperature | −20 °C to +80 °C (typical) |
| Headers | 0.1″ spaced dual headers + 3‑pin debug header, all pre‑soldered |
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 →