Bluetooth Serial Connection Matlab Student
I have this bluetooth device powered by an arduino which I can connect via COM port in a serial monitor such as putty. However I cannot do this in matlab. However I cannot do this in matlab. I set this up as a normal com port as follows. Arduino Bluetooth Setup Tips. Try these tips to troubleshoot issues that you face while configuring Arduino ® Bluetooth ® setup. To connect to your Arduino hardware using an HC-05 or HC-06 Bluetooth module, make sure you have Instrument Control Toolbox installed.
I am sending accelerometer data via bluetooth into Matlab where I will process it and build a GUI.
I am currently working on getting the bluetooth data into Matlab. I'm using a dongle which gets data into port COM18. This is the code I'm using:
When I start from scratch (disconnect and connect bluetooth and dongle, reopen matlab etc) The port successfully opens and allows me to read data. However, if I close and then try to open, it will give me an error:
Error using serial/fopen (Line 72) Open failed: Port COM 18 is not available. Available ports: COM6, COM7, COM19. use INSTRFIND to determine if other instrument objects are connected to the requested device.
I know that my device isn't connected to anything else. So I then have to disconnect my bluetooth, dongle, and restart matlab.
Is there a more efficient way to do this?
Also, I am able to get values from my accelerometer into Matlab, but I don't know how to make them continuous. Each time 512 bytes are sent and if my ValuesReceived exceeds 12000, I once again have to restart my bluetooth device to get more values. I've tried flushoutput, but it hasn't worked. Any ideas on how to get continuous data into Matlab so I can process it in my GUI?
Ben ReichBluetooth Serial Connection Matlab Student Edition
1 Answer
I figured out the problem. In order to not get this error anymore I simply had to follow the sequence
and then when I do
I am no longer getting the error. It was just the order of operation to close the serial.