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Index › Programming Questions & Help › Electronics,  Serial Library › Bluetooth Serial Init() Error 100% of the time.
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Bluetooth Serial Init() Error 100% of the time. (Read 1392 times)
Pinter1975
Bluetooth Serial Init() Error 100% of the time.
Mar 17th, 2010, 5:59pm  
Howdy,

Running XP32 bit and have a problem that fails 100% using the Serial Library.

I have a Bluetooth Serial adapter plugged into a servo controller. I can connect to it using hyperterminal fine and control as needed.

If I try to connect to the same adapter through the processing serial library I constantly get a Error inside Init(). I can see that processing is trying to connect because the rx leds flash on the servo controller. It just fails and the sketch runs, with a long stream of errors on every attempted serial write.

If I use a cable the processing code works fine, so that is not to blame.

Is the serial library just buggy, or is there something I can do to fix this.

I have tried reboots to make sure the port is closed. Also downloaded the latest processing build 1.1

Cheers.
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Steve Legge
Re: Bluetooth Serial Init() Error 100% of the time.
Reply #1 - Apr 13th, 2010, 7:21pm  
Hello,

From WinXP, I have Processing connecting to my BlueSMiRF that I have connected to a Pololu Serial Servo controller.  

Here are the salient statements:

import processing.serial.*;
Serial serialServoPort;

println(Serial.list());  // will show all Com ports

serialServoPort = new Serial(this, Serial.list()[3], 9600);

I had a problem until I set the BlueSMiRF baud rate to 9600.
Also, you must make sure to use the increment - [3] in my case, that matches your bluetooth port displayed with the println(Serial.list());

I cannot get connected from Ubuntu however because the Serial.list() does not contain the RFCOMM port, only TTY com ports.  If anyone knows how to get around this I would be grateful.

Thanks
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