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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Fixed 5V rail from anything between 5.5V and 50V. The Pololu D36V50F5 is a step-down (buck) regulator that delivers up to 5.5A continuous - enough for single-board computers, sensor stacks, LED strips, and 5V accessory buses in robots.
Reverse-voltage protection covers you when battery leads get swapped in a hurry.
Specs
| Model | Pololu D36V50F5 |
| Type | Step-down (buck) regulator |
| Input voltage | 5.5V to 50V |
| Output voltage | 5V fixed |
| Continuous output current | Up to 5.5A (thermally dependent) |
| Reverse-voltage protection | Yes |
| Size | 1 in × 1 in × 0.375 in |
Continuous current depends on airflow, input voltage, and wiring. Thick short wires plus some ventilation buy real headroom at high loads.
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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