A4.8051 Communication Protocols:UART, RS232
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UART Serial communication using 8051

We have covered the basics of timers in the previous tutorial, with that we can see how can a microcontroller communicate with a computer serially.

There are two ways to connect a microcontroller to a computer.

  • Using RS232 protocol to the legacy serial port.
  • Using a USB to serial convertor.

From microcontroller programming point of view, there is fundamentally no difference.

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