A library for Arduino/Teensy etc that provides (relatively) easy creation of a keypad touch interface with events fired (touch and repeat touch) with visual feedback of touch interactions.

Each key can be assigned its own touch callback handler (or use a common one) and the display class can also have a draw function attached for icons etc..

A subclass of TouchKeypad (below).

Requires Adafruit's GFX library (or rather, a subclass of it for your display).

This is the class that actually draws stuff on the display - either instantiate or subclass this one.

The update(uint16_t touchUpdateMs=10) and draw(uint16_t displayRefreshMs=100) methods are provide separately as it is often necessary to control the timing of drawing. Both accept a milliseconds parameter to limit update/draw frequency.

An updateAndDraw() method is provided for convenience.

See methods in TouchKeypad class below to configure your touchscreen parameters.

Creates a keypad of TouchKeys

Extends the DisplayUtils Area

Requires Adafruit's TouchScreen.h

void rotate() Unlike the GFX display, this does not take any arguments, it just rotates the touch screen 90 degrees clockwise.

The touchscreen is highly likely to at a completetely different native rotation to the actual (display) screen and also be (internally) wired back-to-front in x and/or y.

To deal with this we have flipX() & flipY() as below.

If required, call rotate() just once and then use flipX() and/or flipY() to match the display.

void flipX() Swap tsLeft & tsRight boundaries

void flipY() Swap tsTop & tsBottom boundaries

Created automagically by the TouchKeypad class, this would not normally be instatiated outside of that context.

The area of each key will be able to be changed (but not in this release).

Extends the DisplayUtils Area