In the .NET embedded space there's also Meadow from Wilderness Labs (which is based on Mono, as opposed to NanoFramework which is a rework of MicroFramework[0]).

There was (semi) recently a "dev day" for Meadow which I found super interesting[1]. The founder of Wilderness Labs has also been doing a bit of streaming on Twitch[2].

They also have some great docs if you're interested in learning about electronics in general[3].

[0] https://community.wildernesslabs.co/t/lay-of-the-land/362

[1] https://www.youtube.com/watch?v=qE8qWhiz8Vw&list=PLoP9Fu9zn7...

[2] https://www.twitch.tv/wildernesslabs

[3] http://developer.wildernesslabs.co/Hardware/Tutorials/Electr...