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 Pololu S9V11F3S5C3 is a compact 3.3V step-up/step-down voltage regulator with a fixed 3V low-voltage cutoff. It can raise or lower the input voltage to keep a stable output, making it useful for battery-powered projects where the voltage can change during use.
The output is set to 3.3V by default and can be changed to 5V using the SEL pin. Its fixed 3V cutoff helps protect batteries from over-discharging, while built-in short-circuit and over-temperature protection add extra safety during operation.
Features:
- Output voltage: 3.3V default, 5V selectable
- Input voltage range: 3V to 16V
- Typical maximum output current: 1.5A
- Fixed 3V low-voltage cutoff
- Power-good indicator pin
- Low quiescent current under 1mA when enabled
- Short-circuit protection
- Over-temperature protection
- Size: 0.5″ × 0.6″ × 0.17″
- Weight: 0.7g without headers
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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