![]() ![]() ![]() When released, the function returns 1 to 16, depending on the key. Port needs to be initialized for working with the Keypad library, see Keypad_Init.Ĭall to Keypad_Key_Click is a blocking call: the function waits until some key is pressed and released. Reads the key from keypad when key gets pressed. Lcd module connections sbit LCD_RS at PORTD2_bit Port direction char keypadPort_Direction at DDRB Initialize PORTB for communication with keypad char keypadPort at PORTB Must be defined before using this function. keypadPort_Direction - Direction of the Keypad port.Initializes port for working with keypad. External dependencies of Keypad Library The following variable must be defined in all projects using Keypad Library: The library routines can also be used with 4x1, 4x2, or 4x3 keypad.įor connections explanation see schematic at the bottom of this page. ![]() The mikroC PRO for AVR provides a library for working with 4x4 keypad. ![]()
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