Is it possible for an experienced developer to implement sensors that are not available in the Grove Pi+ .Net solution? If so can someone give me the high level process? I have some sensors from Seeed that came in an IoT developer kit with the Intel Edison that I would like to use on the Grove Pi+.
Yes it is. Grove Pi is 100% opensource, meaning you can view the code for the C# library, Grove Pi firmware, and even see how the hardware works itself. All of this is on github. https://github.com/DexterInd/GrovePi
Hope you figure it out 