79 lines
1.7 KiB
Markdown
79 lines
1.7 KiB
Markdown
Description
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---
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A simple **XPT2046** Touch Screen library for STM32 micro-controllers.
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* The first example sketch (**TouchTest.ino**) checks if the touch screen has been pressed and prints the X,Y coordinates on the Serial port 1.
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* The second example sketch (**TouchButtons.ino**) creates some virtual buttons defined by the user.
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Copyright (c) 03 December 2015 by **Vassilis Serasidis**
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Home: http://www.serasidis.gr , https://github.com/Serasidis
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The library is written for STM32duino (http://stm32duino.com)
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```
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//Create 4*2=8 virtual buttons
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#define LINES 2 //Divide the touch screen into 2 lines
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#define COLUMNS 4 //Divide the touch screen into 4 columns
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```
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Screenshot of the Serial port 1 (TouchButtons.ino)
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```
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-------------------------------------------------
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XPT2046 touch screen buttons
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Copyright (c) 02 Dec 2015 by Vassilis Serasidis
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Home: http://www.serasidis.gr
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-------------------------------------------------
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Button: 1
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X: 1097
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Y: 800
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Button: 2
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X: 3455
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Y: 617
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Button: 3
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X: 684
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Y: 1483
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Button: 4
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X: 3412
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Y: 1198
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Button: 5
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X: 860
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Y: 2395
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Button: 6
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X: 3353
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Y: 2355
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```
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PIN Connections between XPT2046 and STM32F103
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----
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| XPT2046 | STM32F103 |
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|:------:|:-----:|
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|T_DO|PA6|
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|T_DIN|PA7|
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|T_CS|PA3|
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|T_CLK|PA5|
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Selecting the SPI port number and Chip Select pin
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----
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Can be used other SPI port than the default SPI1 port. Just select the SPI port you want by replacing the following line into the sketch:
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```
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SPIClass mySPI(1); //Create an SPI instance on SPI1 port.
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//SPIClass mySPI(2); //Create an SPI instance on SPI2 port.
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```
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The Chip select pin can be defined by the user also.
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```
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#define CS_PIN PA3 // The pin PA3 has been chosen as Chip Select pin.
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```
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