The default firmware on the LM048 has a Baud-Rate of 19200.
In the video below our engineer demonstrates how to use our LM149 configuration tool to change the Baud-Rate on the LM048 and LM058. When you change the Baud-Rate you have to select “Save Settings” to ensure that the tool sends the correct commands to the device and saves the configuration changes.
You can see that baud rates from 1200, 2400, 4800 to 9600 are supported and modified according to the response received from the AT+ENQ command. After you submit the AT+Reset command, the default baud rate of 19200 is loaded (the LM048/LM058 device will also be reset if you press and hold the Reset button continuously for 3 seconds).