Sending a file to a particle board - perform firmware update for secondary micro

[rickkas7]

This question was asked a few hours earlier; you should check that thread to see if any of the answers apply. It's definitely possible but will depend on the size of your binary, among other things.

Best way to update local device with Particle

Both methods will work, but it kind of depends on how big your binary is. Since the application firmware is limited to 128K bytes, you probably can’t have much more than 120K assuming the Particle firmware does not do anything else. If you do a separate download, then you’re limited by the storage space on the device. For the Boron, this is probably around 1.8 Mbytes out of the 2 MB LittleFS flash file system to be safe. If your binary is bigger than that, you’ll need to add external storage …