My question involves a Sparkfun Fio v3, similar to the Arduino Fio.
I had a student who was testing his understanding of the Keyboard library. He uploaded a sketch that continuously sends output, emulating a keyboard, saying "Hello!If you're reading this, then you did things right!" (I don't have his code, unfortunately, so I can't post it.)
So, now, whenever I connect it via the USB, I can't upload a new sketch because the Serial channel is clogged with this output. (Error Message: "avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00" and so on)
I've tried putting the cursor inside the header comment in 'Blink', so that the new characters that are being spammed to my code are all inside a comment, and this makes it possible to compile, but it won't sync and upload. I've tried burning a new bootloader, and this fails as well (Message: "Error while burning bootloader.").
It seems to me that the only way to get this device back is to reset the memory without connecting to a computer, but I can't find any way to do this.
Is there any way to rescue this device?