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Index › Programming Questions & Help › Programs › Input/output error in writeByte
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Input/output error in writeByte (Read 558 times)
mitcho
Input/output error in writeByte
Sep 19th, 2006, 1:04pm  
i use a bluetooth serial replacement module to connect to a bluetooth device attached to a microcontroller. i used processing to connect and send data to the microcontroller.

the bluetooth device attached to the microcontoller is set up as a com port that i can connect to like this:   port = new Serial(this, Serial.list()[3], 9600);

when i run my program, everything goes fine and processing connects to the microcontoller. but then when i try to send data by pressing a button (which sends an integer) i get this error:

Code:

No method named actionPerformed was found in root. 


java.io.IOException: Input/output error in writeByte


any ideas?
at gnu.io.RXTXPort.writeByte(Native Method)
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--&&Kind Regards,&&&&Mitchell Page&&University of Sydney&&Australia
 
djones
Re: Input/output error in writeByte
Reply #1 - Sep 22nd, 2006, 4:46am  
I'm thinking it is expecting to be able to do a "callback"
to a function in your processing code called "actionPerformed".

Just add this to your sketch, and see if that resolves the problem:

void actionPerformed() { }

-- djones
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