Upload a new HEX file to the RFu-328

You can upgrade your RFu-328 firmware with the XLoader utility (Windows only) and a FTDI USB connector.

Download the utility from the XLoader website or from ours here.

Usage:
  • Select the hex file you want to upload
  • Use the Uno(ATmega328) Device option
  • Select the COM port to where your FTDI USB cable is attached (usually the last on on the list).
  • Click upload. 


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