KeyPad.h File Reference

Containing a function to check which key of the KeyPad is pressed. More...

#include "../Pins/Pins.h"
#include "Core/Keys.h"

Go to the source code of this file.

Functions
Keys_t	KeyPad_GetKeys ()
	Check which key of the KeyPad is pressed.

Detailed Description

Containing a function to check which key of the KeyPad is pressed.

Date

03.09.2020 21:45:28

Author

Markus Scheich

See also

https://circuitdigest.com/microcontroller-projects/keypad-interfacing-with-avr-atmega32

Function Documentation

KeyPad_GetKeys()

Keys_t KeyPad_GetKeys ( )

inline

Check which key of the KeyPad is pressed.

This function first powers the row pins and reads the value at the column pins. Then the column pins are powered and the row pins are read. From the combination of these values the pressed key is calculated. This function always returns only one key. Multiple keys not supported with this structure.

Returns

Pressed key.