XPT2046-Python

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Python library for XPT2046 Touchscreen

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# XPT2046-Python
Python library for XPT2046 Touchscreen.

This library is the same as [rdagger](https://github.com/rdagger/micropython-ili9341/blob/master/xpt2046.py)'s, but adapted to work with pure Python on Raspberry Pi.

## SPI and GPIOs
SPI must be from [busio]()'s Adafruit CircuitPython library.
GPIOs must be from [gpiozero](https://gpiozero.readthedocs.io/en/stable/index.html) library.

## Usage
You must initialize the SPI. In this example we will use the auxiliary SPI of the Raspberry Pi (NOTE: you have to enable it in the `/boot/config.txt` configuration file, see [here](https://raspberrypi.stackexchange.com/a/56503)).

Wiring:

| Raspberri Pi  | <--> | XPT2046 |
| :------------ |:---------------:| -----:|
| SCLK_1 (GPIO21) | <--> | CLK |
| CE_1 (GPIO17) | <--> | CS |
| MOSI_1 (GPIO20) | <--> | DIN |
| MISO_1 (GPIO19) | <--> | DO |
| GPIO26 | <--> | IRQ |

Code, same as in [touch-test.py](https://github.com/Luca8991/XPT2046-Python/blob/main/touch-test.py) file:

from xpt2046 import Touch
    from gpiozero import Button, DigitalOutputDevice
    import board
    import busio
    from time import sleep
	
	# touch callback
    def touchscreen_press(x, y):
        print(x,y)

cs = DigitalOutputDevice(17)
    clk = board.SCLK_1		# same as writing 21
    mosi = board.MOSI_1	# same as writing 20
    miso = board.MISO_1	# same as writing 19
    irq = Button(26)

spi = busio.SPI(clk, mosi, miso)	# auxiliary SPI

xpt = Touch(spi, cs=cs, int_pin=irq, int_handler=touchscreen_press)

while True:
        #print(xpt.get_touch()) # to get the (x, y) coords when you desire
        sleep(.01)

Tested on Raspberry Pi Zero W, used [this](https://www.amazon.it/gp/product/B087C3KC8F/) LCD + Touchscreen module

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