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I am doing the project to make a microcontroller communicate with PC.
I am facing the problem writing the VB code for command button to ask uC to display the data in my label.
How to write the code for visual basic to get the data from the microcontroller?
How are you communicating with it? IOW, what's the hardware interface? 1-Wire? RS-232? Something else? How you communicate with it depends on 2 things - the hardware interface and the code in the uC. (What does the uC need to tell it to send you data and what format will the data be in?)