Create a connection to a nearby Bluetooth device. In this example, the HC-06 Bluetooth module is configured as a loopback device.

device = bluetooth("HC-06")

device = 
  bluetooth with properties:

                 Name: "HC-06"
              Address: "98D331FB3B77"
              Channel: 1
    NumBytesAvailable: 0
      NumBytesWritten: 0

  Show all properties

Check the default ASCII terminator.

device.Terminator

ans = 

    "LF"

Set the terminator to "CR" and write a string of ASCII data. The writeline function automatically appends the terminator to the data.

configureTerminator(device,"CR")
writeline(device,"hello")

Write another string of ASCII data with the terminator automatically appended.

writeline(device,"world")

Since the device is configured as a loopback device, the data you write to the device is returned to MATLAB. Read a string of ASCII data. The readline function returns data until it reaches a terminator.

readline(device)

ans = 

    "hello"

Read a string of ASCII data again to return the second string that you wrote.

readline(device)

ans = 

    "world"

Clear the Bluetooth connection.

clear device