XPT2046-Python

Python library for XPT2046 Touchscreen.

This library is the same as rdagger'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 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).

Wiring:

Code, same as in 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 LCD + Touchscreen module