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 →
134N3P boost module that turns a single 3.7V li-ion cell into a steady 5V output. The chip behind most DIY power banks: it charges the battery and boosts to 5V for your project.
Built-in MOSFET handles charge and discharge. 1A output, cuts off when input drops to 2.9V to protect the cell. Supports trickle and zero-voltage charging.
Specs
| Input | 3.7-5.5V |
| Output | 5V, 1A |
| Discharge efficiency | 85% at 3.7V |
| Standby current | 8uA max |
| Cutoff | stops output at 2.9V input |
| Protection | Over-temp, over-voltage, overload, short circuit, over-charge, over-discharge |
| Temp range | -30C to 85C |
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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