Explain & How Use Keypad Library MicroC and Interfacing PIC
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- Connect Keypad With Pic MicroController
- MikroC Program
- Proteus Program
The mikroC PRO for PIC provides a library for working with 4x4 keypad. The library routines can also be used with 4x1, 4x2, or 4x3 keypad. For connections explanation see schematic at the bottom of this page.
External dependencies of Keypad Library
The following variable must be defined in all projects using Keypad Library:Description :Example : extern sfr char keypadPort;Keypad Port. char keypadPort at PORTD;
Initializes port for working with keypad.
Reads the key from keypad when key gets pressed.
Call to Keypad_Key_Click is a blocking call: the function waits until some key is pressed and released. When released, the function returns 1 to 16, depending on the key. If more than one key is pressed simultaneously the function will wait until all pressed keys are released. After that the function will return the code of the first pressed key.
- Any Person Using Keypad In Projects
- Love Electronics
- Geeks Electronics