Tuesday, 23 December 2014

Arduino - Serial IO: Arduino works but then is not accessable in Windows

If you're writing a library that communicates to windows you might find that the Arduino becomes unavailable until you remove it and it steps up in the com port index.

Fix: You need a handshake between the Windows and the Arduino.  The windows app needs to tell the Arduino to start sending data.

What is actually happening is if you're sending a constant stream of data, windows assumes it is a mouse and changes the driver!

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