Gainer is a DIY environment for user interfaces and media installations. It can be used to connect sensors or actuators with Max/MSP.

The basic concepts are:

• The user can use it for creative work from prototype stage to final output stage.
• Using a breadboard allows the user to learn by mistake.
• The user can build their own I/O module from components.
• The user can choose a configuration from various configurations (software and hardware).
• Open source software and hardware.