Open Source Prototyping Tool. Allows users to rapidly prototype their design by easily allowing the change of a capacitance value in a matter of seconds.
This capable board gives you 4.29 Billion+ capacitance combinations from the range of 0.1pF - 596uF.
More information can be found at the links below:
Programamble Capacitor webpage
The hardware is released under Creative Commons Share-alike 3.0.