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Is it possible to burn the bootloader of an arduino redboard using an esp8266 feather? whenever i connect my redboard to my pc the ports list on the ide would just be greyed out. I've looked around online and tried everything I found except burning the bootloader since I didnt have a spare arduino, atmega or a programmer. I have an EPS8266 feather though.

If anyone know whether or not this is possible to do and could walk me through on how to do it if it was.

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  • Sparkfun Redboard? yes it is possible, but complicated and it will not help with port grayed out
    – Juraj ♦
    Commented Nov 4, 2018 at 12:00

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The RedBoard has an FT232 chip for the USB interface. Flashing the bootloader on the main MCU will have no effect at all on your problem.

While, yes, it is technically possible to use the ESP8266, it's not easy and, since it won't cure your problem of a greyed out port option, isn't worth the effort to try and do it.

Instead, you should be looking at things like your USB ports, USB cables, FT232 drivers, etc on your computer.

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  • well I guess my redboard is broken then. I've tried 3 different cables which I know isn't just for power and the ports work fine with other devices so those are good too, FT232 drivers? don't remember installing those but my arduino worked fine before, and loopback test doesn't work. Guess I need to get a new arduino
    – Xiao Ning Er
    Commented Nov 4, 2018 at 19:21
  • What OS are you using? Check the chip next to the USB port - it should say "FT232" on it.
    – Majenko
    Commented Nov 4, 2018 at 19:30
  • I am on Windows 10. Chip? on my redboard? This is what I see imgur.com/a/SQroRKO
    – Xiao Ning Er
    Commented Nov 4, 2018 at 19:44
  • Yep, that's the FT232. The strange looking one.
    – Majenko
    Commented Nov 4, 2018 at 19:55
  • the latest project i used on it was this i.imgur.com/lyP0gkA.png. I used an 8pack aa battery for 12v and wired it into the vin to power the arduino. reckon that burned it out?
    – Xiao Ning Er
    Commented Nov 4, 2018 at 20:08

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