Interactive command line programs for the ADC
https://github.com/epccs/RPUno/tree/master/Adc

and Digital input/output

https://github.com/epccs/RPUno/tree/master/Digital

I like a command line interface, it started with old school GPIB instruments, but now that I have been exposed to the very infectious ideas of JSON the beauty of a ReSTful SCPI(ish) instrument for the garden is complete.