In this article we discussed about 16x2 LCD, its working, pinout, and also how to use 16x2 LCD with Arduino. We provided Circuit Diagram, Complete Arduino Code, and step-by-step guide. Skip to main ...

For this, we are using an R305 fingerprint sensor. The R305 is an optical fingerprint sensor with the capability to store up to 512 fingerprint templates. The fingerprint sensor is interfaced with the ...

The first layer has both a sensor input plug and an LCD readout. The second layer is a SD card shield, which is used to store all collected data. The SD card shield talks to the arduino through the ...