how to connected devices with programming

Answer 1

harnoor Singh Pls Clarify your Question and use proper tags ...

Answer 2

I don't know exactly the answer, but I hope this can help you:
https://www.sciencedirect.com/topics/computer-science/programming-device
https://docs.microsoft.com/en-us/archive/msdn-magazine/2010/october/msdn-magazine-embedded-programming-connected-devices-using-the-net-micro-framework