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Bluetooth Warning - Unable to Read Any Data

These remedies apply to the case when you receive no data and you get this warning message:

'Bluetooth' unable to read any data

When using the Bluetooth® interface for:

  • Reading ASCII (text) data using the fscanf, fgets, or fgetl functions

  • Reading binary data using the fread function

  • Reading binblock data using the binblockread function

these are possible causes and remedies:

CauseSolution
An invalid command was sent to the device, so there is a problem reading the response to the command.Check your device manual for proper command formatting.
An incorrect write terminator was sent to the instrument before attempting to read data, so there is no data to read.Verify that the Terminator property is set to the value required by your device. For more information about setting the property, see Terminator.
An incorrect RemoteName, RemoteID, or Channel was used.Verify that the device is paired and connected. For more information about pairing and connecting, see Configuring Bluetooth Communication.

More Troubleshooting Help

For more information about troubleshooting the Bluetooth interface, including supported platforms, adaptor requirements, configuration and connection, and other troubleshooting tips, see Troubleshooting Bluetooth Interface.