Editing PC-Microcontroller Communications

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== USB Communications from a PC to Microcontrollers ==
 
== USB Communications from a PC to Microcontrollers ==
  
Many modern computers especially laptops do not have serial ports and the serial connector port is big and bulky.  RS232 communication requires the use of level shifters which add parts.  Serial communication can also be slow.  Note that USB often appears as virtual RS232 on the PC which allows you to use RS232 on the microcontroller and rs232 techniques on the PC.
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Many modern computers especially laptops do not have serial ports and the serial connector port is big and bulky.  RS232 communication requires the use of level shifters which add parts.  Serial communication can also be slow.
  
 
An alternative is more and more microcontrollers now have native support for USB which has smaller connectors, is faster, and works with the plug and play architecture of modern OSs.  The disadvantage is that the firmware is much more complex and the PC side requires an device driver and corresponding INF file.  Lucky, many generic drivers are available and many microcontroller manufacturers that support USB provide sample firmware.
 
An alternative is more and more microcontrollers now have native support for USB which has smaller connectors, is faster, and works with the plug and play architecture of modern OSs.  The disadvantage is that the firmware is much more complex and the PC side requires an device driver and corresponding INF file.  Lucky, many generic drivers are available and many microcontroller manufacturers that support USB provide sample firmware.

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