hi,
i need a help to develope a small project on visual studio.
i need to on and off motor using visual studio based graphical user interface button.
so how to interface it with microcontroller..?

 

Start here..
http://www.pjrc.com/teensy/
Read everything on how to make it do various things, learn what you need to know about Visual Studio and you will have what you are wanting.

 

hi,
i need a help to develope a small project on visual studio.
i need to on and off motor using visual studio based graphical user interface button.
so how to interface it with microcontroller..?

There are a number of ways. One of the easier ways is to get a USB-to-TTL/USB-to-UART module with a virtual COM driver (most have this). Then, setup your microcontroller to respond to UART commands to turn on/off the motor.

Once that's working, create a program that communicates with the virtual COM device and send the requisite data to the microcontroller to turn i the motor on and off.