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 ...

The Keypad library is designed for driving matrix style keypads (matrix decoder) when using the Arduino platform. It uses the standard method of selecting a column and scanning all the rows to see ...

For some reason the arduino ide2 does not allow manipulation of the text on the serial monitor so I used the vscode extension of microsoft serial monitor in the case of deleting already input text.