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I'm trying to communicate with my Arduino UNO by using Processing and bluetooth. Basically, I'm following every step in this guide: http://playground.arduino.cc/Learning/Tutorial01
The code I'm using is identical to the above guide and as bluetooth modem I'm using HC-06. The problem is that I keep getting an error message that says: "Error opening serial port COM22: Port busy". Still, the prinln(Serial.list()) claims that COM22 is available? I have rebooted my computer but still it won't work. I'm using processing 3.0a5 and Arduino 1.05
I have googled and searched the forum but still I can't find any solution for my problem.
Best regards, Mattias