Library for TouchPad click

Author: KacaPerendic

README.md

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+![MikroE](http://www.mikroe.com/img/designs/beta/logo_small.png)
+
+---
+
+# Touchpad Click
+
+- **CIC Prefix**  : TOUCHPAD
+- **Author**      : MikroE Team
+- **Verison**     : 1.0.0
+- **Date**        : Jul 2018.
+
+---
+
+
+### Software Support
+
+We provide a library for the Touchpad Click on our [LibStock](https://libstock.mikroe.com/projects/view/1634/touchpad-click) 
+page, as well as a demo application (example), developed using MikroElektronika 
+[compilers](http://shop.mikroe.com/compilers). The demo can run on all the main 
+MikroElektronika [development boards](http://shop.mikroe.com/development-boards).
+
+**Library Description**
+
+The library contains all the functions required to operate the Touchpad click.
+
+Key functions :
+
+- ``` void touchpad_getPosition( T_touchpad_touchPoint *posData ) ``` - Gets coordinate X and Y of touch and puts them in structure touch_point
+- ``` void touchpad_readRegister( uint8_t rAddr, uint8_t *buffer) ``` - Reads register on rAddr address and returns value through buffer 
+- ``` void touchpad_writeGesture( uint8_t _data, char *str ) ``` - Writes gesture through *str based on red value _data 
+- ``` void touchpad_readBytes( uint8_t rAddr, uint8_t *buffer, uint8_t nBytes) ``` - Reads register for more bytes on consecutive addresses and returns value through buffer
+
+**Examples Description**
+
+The application is composed of three sections :
+
+- System Initialization - Initializes I2C module and sets INT pin as OUTPUT and RST pin as INPUT.
+- Application Initialization - Initializes driver init. 
+- Application Task - (code snippet) - Reads every touch and gesture and logs to USBUART_A.
+
+```.c
+void applicationTask()
+{
+    Delay_ms( 50 );
+    touchpad_readRegister( _TOUCHPAD_TOUCHSTATE, &touchpad_data );
+    if( (touchpad_data & _TOUCHPAD_TOUCH_ONLY) != 0 )
+    {
+        mikrobus_logWrite( "", _LOG_LINE );
+        touchpad_getPosition( &touchpad_posData );
+        WordToStr( touchpad_posData.posX, touchpad_text );
+        mikrobus_logWrite( "Position X: ", _LOG_TEXT );
+        mikrobus_logWrite( touchpad_text, _LOG_LINE );
+        WordToStr( touchpad_posData.posY, touchpad_text );
+        mikrobus_logWrite( "Position Y: ", _LOG_TEXT );
+        mikrobus_logWrite( touchpad_text, _LOG_LINE );
+        mikrobus_logWrite( "-----------", _LOG_LINE );
+        Delay_ms( 50 );
+    }
+    else if( (touchpad_data & _TOUCHPAD_GESTURE) != 0 )
+    {
+        Delay_ms( 50 );
+        touchpad_readRegister( _TOUCHPAD_GESTURESTATE, &touchpad_data );
+        if( touchpad_data != _TOUCHPAD_NO_GESTURE_PRESENT )
+        {
+            touchpad_writeGesture( touchpad_data, &touchpad_text );
+            mikrobus_logWrite( touchpad_text , _LOG_LINE );
+        }
+    }
+}
+```
+
+The full application code, and ready to use projects can be found on our 
+[LibStock](https://libstock.mikroe.com/projects/view/1634/touchpad-click) page.
+
+Other mikroE Libraries used in the example:
+
+- I2C
+
+**Additional notes and informations**
+
+Depending on the development board you are using, you may need 
+[USB UART click](http://shop.mikroe.com/usb-uart-click), 
+[USB UART 2 Click](http://shop.mikroe.com/usb-uart-2-click) or 
+[RS232 Click](http://shop.mikroe.com/rs232-click) to connect to your PC, for 
+development systems with no UART to USB interface available on the board. The 
+terminal available in all Mikroelektronika 
+[compilers](http://shop.mikroe.com/compilers), or any other terminal application 
+of your choice, can be used to read the message.
+
+---
+---