An Arduino is a microcontroller — a ... complicated than the others on this list. You'll need the sensor module R305 to read ...

Electronic and Arduino enthusiasts searching for an ... “This is a security door lock with fingerprint sensor. It is able to record all the door actions to and SD card and with real time.

The primary components are the fingerprint sensor and Microsoft’s Secure Device Connection Protocol (SDCP), with the latter tasked with securing the (USB) connection between the sensor and the host.

Sometimes that means a face- or iris-scanning infrared webcam; sometimes it means a fingerprint sensor mounted on the power button or elsewhere on the device. While these authentication methods ...