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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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Teensy 4.1 with pre-soldered headers, no Ethernet PHY. A 600MHz ARM Cortex-M7 board for projects that need more power than a basic Arduino - robotics, audio, data logging, motor control, sensor hubs, and LED work.
This version drops the Ethernet PHY controller for a lower-cost board when wired network isn't needed. Built-in microSD socket, USB host port, and native SDIO.
Specs
| Processor | 600MHz ARM Cortex-M7 |
| Flash | 8MB |
| RAM | 1024K |
| Headers | Pre-soldered male |
| Storage | Built-in microSD socket |
| USB | USB host port |
| I/O Pins | 55 total (42 breadboard-friendly) |
| PWM Pins | 35 |
| Analog Inputs | 18 |
| Serial Ports | 8 |
| SPI / CAN | 3 SPI, 3 CAN bus |
| Ethernet | No PHY controller |
RTC support and power on/off management onboard.
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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