To check whether it is accessible on your computer, you can run the following commands.ġ /Users/$(whoami)/Desktop/avrdude/bin/avrdude Troubleshoot The above commands utilizes a tool called AVRDUDE, which is included in each version of the IDE. You can now disconnect your board, and plug it into your Chromebook. This is another proof that it was successful. Now that your firmware is upgraded, you should see your board blinking (1 second off, followed by a quick blink). When finished, you should see the following output in the terminal (screen capture from Windows): This will not take long, but make sure you do not disconnect the board from your computer. This will start a process of uploading the. Open a terminal, and run the following command:ġ /Users/$(whoami)/Desktop/avrdude/bin/avrdude -C/Users/$(whoami)/Desktop/avrdude/etc/nf -v -patmega4809 -cxplainedmini_updi -Pusb -b115200 -e -D -Ufuse2:w:0x01:m -Ufuse5:w:0xC9:m -Ufuse8:w:0x02:m -Uflash:w:/Users/$(whoami)/Desktop/optiboot_atmega4809.hex:i Expected Outcome Download the AVRDUDE tool for Mac (.zip file) and unzip it to your Desktop folder.Ģ. hex file to your desktop folder, otherwise the following commands won't work. It is important that you move the optiboot_atmega4. Since Chromebooks cannot run executables, the firmware upgrade for the UNO WiFi Rev 2 needs to be done through a Windows/Mac/Linux computer.įirst download the optiboot_atmega4.hex file, and move it to your Desktop folder.Ĭonnect your UNO WiFi Rev2 board to your computer and follow the instructions for each operative system below.
You will need to upgrade the firmware using either a Windows/Mac/Linux computer, prior to programming it via a Chromebook.If you are using a Chromebook, setting up your board is a bit different for this particular board: The UNO WiFi Rev 2 is the connected version of the classic UNO board.
This tutorial is only relevant for Chromebook users that uses an Arduino UNO WiFi Rev 2 board.
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