cst9220 Touch Screen Controller

The cst9220 touchscreen platform allows using touch screen controllers based on the Hynitron CST92xx series of chips with ESPHome. The component supports the CST9220 (multi-touch) and CST9217 (single-touch) controllers, which are found on a number of Waveshare ESP32-S3 Touch AMOLED displays. The I²C is required to be set up in your configuration for this touchscreen to work.

Base Touchscreen Configuration

# Example configuration entry
touchscreen:
  platform: cst9220
  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.

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

• All other options from Touchscreen.

The display resolution is read from the controller automatically; calibration is therefore not normally required.

See Also

• API Reference: cst9220_touchscreen.h