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.
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The wireless Pico 2: Raspberry Pi's RP2350 microcontroller plus 2.4GHz WiFi and Bluetooth 5.2 on the familiar 40-pin board. Program it drag-and-drop over USB (UF2) in MicroPython or C/C++.
Wireless is handled by an onboard Infineon CYW43439, and the VSYS input takes anything from 1.8V to 5.5V - single Li-ion cells included.
Specs
| MCU | Raspberry Pi RP2350 |
| Cores | Dual Cortex-M33 or dual RISC-V Hazard3, up to 150MHz |
| Memory | 520KB SRAM + 4MB onboard flash |
| Wireless | 2.4GHz 802.11n WiFi + Bluetooth 5.2 (CYW43439) |
| GPIO | 26 multi-function pins (3.3V logic), 3 ADC-capable |
| USB | Micro USB, UF2 drag-and-drop programming |
| Power input | VSYS 1.8V to 5.5V (onboard buck-boost) |
| Size | 21mm × 51mm, castellated edges |
3.3V logic only - use a level shifter for 5V signals, and keep metal clear of the antenna end for better range.
FAQ
Will this ship from Manila?
Yes — all stock ships from our Quezon City warehouse. Order before 4 PM weekdays for same-day cutoff via J&T or LBC.
Do you ship nationwide?
Yes. Metro Manila usually arrives next-day; provincial 1–3 working days.
Can I get this on a school PO or class order?
Yes — we accept Purchase Orders from accredited schools and universities. Contact us with your PO details and we'll process it.
Is this compatible with Arduino, ESP32, or Raspberry Pi?
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.
What's your return policy?
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.
Do you offer technical support?
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.
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