Virtual Panel is a toolbox for experiment control and display. It is a combination of a Windows application and two small Arduino libraries. Writing only Arduino code it is easy to setup control over experiments and display results on the Panel application on your PC.
Download: https://github.com/JaapDanielse/VirtualPanel/releases (includes VirtualPanel.exe)
Documentation: https://github.com/JaapDanielse/VirtualPanel/wiki