gt911

CircuitPython Driver for Goodix GT911-based touch screens

• Author(s): ladyada, retiredwizard, Robert Grizzell

Implementation Notes

Hardware:

• Product Page

Software and Dependencies:

• Adafruit CircuitPython firmware for the supported boards: https://circuitpython.org/downloads

• Adafruit’s Bus Device library: https://github.com/adafruit/Adafruit_CircuitPython_BusDevice

• Adafruit’s Register library: https://github.com/adafruit/Adafruit_CircuitPython_Register

class gt911.GT911(i2c: busio.I2C, i2c_address: int = None, rst_pin: digitalio.DigitalInOut = None, int_pin: digitalio.DigitalInOut = None, int_high: bool = False)

A driver for the GT911 capacitive touch sensor.

Parameters:

• i2c (I2C) – The object representing the I2C interface used to communicate with the touchscreen.

• i2c_address (int) – The I2C address of the GT911 device. This is optional, but can be useful for devices lacking RST or INT pin control.

• rst_pin (DigitalInOut) – The object representing the RESET pin.

• int_pin (DigitalInOut) – The object representing the INTERRUPT/IRQ pin.

property touches: list[tuple]

Get the touches from the device.

Returns:

List of touch points containing coordinates and size.

Return type:

list[tuple]