Setting up your XM132

For detailed instructions, visit our developer page.

Finding the serial port

On Windows, use device manager to find the port which will be listed as USB Serial Port. It’s most likely COMx where x is 3 or higher. On Linux, it’s likely /dev/ttyUSBx where x is 0 or some other integer.

PySerial has a simple tool for listing all ports available:

python -m

Note that the XM132 has two serial ports. Usually, the first port is the one to use.


Download the module software from our developer page. In the archive acconeer_xm132_module_software_v*.zip, under bin, you’ll find acc_module_server.bin which is the file to flash.

We recommend flashing using the Python library stm32loader. Install it with:

python -m pip install --user stm32loader

Enter the bootloader by doing the following:

  • Hold down the DFU button
  • Push the RESET button
  • Release the RESET button
  • Let go of the DFU button

Now you should be able to flash:

stm32loader -p /dev/ttyUSB0 -e -w -v -g 0x08000000 acc_module_server.bin

Replace /dev/ttyUSB0 with the serial port of your XM132.