DESCRIPTION : This project demonstrates how to interface a 4x4 matrix keypad with an LCD (16x2) display using an Arduino board. The system captures key presses from the user via the keypad and ...

A-seven-segment-display-connected-to-a-keypad-using-8086-and-proteus This project includes design and implementation of a digital keypad interface using an 8086 microprocessor, an 8255 Programmable ...