# Touchscreen Capacitive touchscreen example for Inkplate 4. ## Overview Polls the built-in Elan capacitive touchscreen. When a touch is detected the coordinates are shown and a filled rectangle moves to the touch position. Partial refresh is used for fast updates. ## Hardware Required - Soldered Inkplate 4 - USB cable ## Setup Run `idf.py menuconfig` and navigate to: **Inkplate Boards → Inkplate4** ## Build and Flash ``` idf.py build idf.py -p PORT flash monitor ``` ## Expected Output Touch the screen — a black square follows your finger. ## Notes - Touch events are detected via a FreeRTOS semaphore given from the GPIO ISR. - `display.touchscreen.getData(x, y)` returns the number of touch points and their coordinates. - `display.partialUpdate()` is used for fast live updates; full refresh every 30 partials. ## Resources - Docs: https://docs.soldered.com/inkplate - Support: https://forum.soldered.com/ - Image tool: https://tools.soldered.com/tools/image-converter/
To create a project from this example, run:
idf.py create-project-from-example "solderedelectronics/inkplate_lvgl=1.1.1:inkplate4/advanced/sensors/touchscreen"