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 Arduino Pro Mini is Sparkfun's take on a compact, low-cost, and adaptable Arduino development board. Its minimal components make it highly flexible and easy to integrate into any project. In order to program the Arduino Pro Mini, you need to have an FTDI cable since it doesn't have an onboard USB interface.
Specifications:
- ATmega328 running at 16MHz with external resonator (0.5% tolerance)
- 5V regulator
- DC input 5V up to 12V
- 14 digital IO - TXD, RDX, D2-D13
- 8 analog IO - A0-A7
- Reverse polarity protected
- Dimension: 33.3 *18.0mm
Inclusions:
- Arduino Pro Mini 328 x1
- 12Pin Male Header x 2
- 6Pin Male Header x 1
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.
Compatibility & downloads
// downloads
- Schematic pdf
Customers also bought
Build with this board
Thumb Joystick - A Beginner's Guide
Wire a joystick to your Arduino, read X/Y, then print UP / DOWN / LEFT / RIGHT to the serial monitor.
read tutorial →Motor Drive (BTS7960 43A) - A Beginner's Guide
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 →Raspberry Pi Pico (RP2040) - A Beginner's Guide
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 →Notes from the bench
Ask the community
Project Showcase — show what you built
Share what you built. Photos, BOM, what worked, what didn't.
view thread →How to ask a good question (and actually get answers)
Symptom + what you tried + clear photo = answers within hours.
view thread →ESP32 brownout when wiring a sensor — fixes that worked
Brownout reset when adding a sensor? Notes on supply decoupling and GPIO checks.
view thread →First Arduino — sketch upload error, what to try?
Upload failing on your first Uno? Driver, COM port, board match — checklist inside.
view thread →