A keypad is one of the most commonly used input devices in microprocessor applications. In a standard keypad wired as an X-Y switch matrix, normally-open switches connect a row to a column when ...

Forked and enhanced Keypad library for Arduino, based on the official version 3.1. This version has an internal buffer recording the last n strokes. The buffer can be used to read numbers and strings ...

Watch the video below to learn more about his Arduino-based portable keypad that connects to your Arduino development board and offers the complete alphabet, numbers 0-9 as well as several commands.