st7123 Touch Screen Controller

The st7123 touchscreen platform allows using the touch screen controllers based on the Sitronix ST7123 chip with ESPHome. The I²C is required to be set up in your configuration for this touchscreen to work.

This controller is used in the M5Stack Tab5 (newer version);

Base Touchscreen Configuration

# Example configuration entry
touchscreen:
  platform: st7123
  id: my_touchscreen
  interrupt_pin: GPIOXX
  reset_pin: GPIOXX

Configuration variables

• id (Optional, ID): Manually set the ID of this touchscreen.

• interrupt_pin (Optional, Pin Schema): The touch detection pin. When connected directly to an MCU GPIO, the driver uses it for interrupt-driven operation; otherwise it falls back to polling.

• reset_pin (Optional, Pin Schema): The chip reset pin.

• address (Optional, int): The I²C address of the touchscreen controller. Defaults to 0x55.

• All other options from Touchscreen.

If no calibration is supplied, the driver reads the native coordinate resolution from the controller and uses it automatically.

See Also

• API Reference: st7123_touchscreen.h