Gui900 is a GUI library for Arduino displays. It currently only supports touchscreens supported by MCUFRIEND_kbv and Adafruit touchscreen, but support for other display library can be added using a wrapper.

This library is a major upgrade over the previous Gui900 version. The following list describes what has been added and what has been removed or not implemented yet.

• Has the proper Arduino library structure
• Uses OOP instead of arrays and functions
• Everything is inside the namespace Gui900
• More efficient memory usage
• More flexible styles
  • Buttons no longer need the space padding workaround
• Ability to share a style between elements
• Hover effects
• Callbacks for buttons and check-boxes

These items may or may not be implemented in the future.

• Radio buttons
• Invisible / disabled elements
• Changing non-style properties (except a few)
• Screen auto-sleep and brightness
• Restarting the Arduino board
• Running another sketch
  • What were these two features doing in a GUI program in the first place?