I bought an Arduino uno r3 a few months ago, with the intention of using it to power a strip of LED lights. It worked fine for a few weeks, until one day when I plugged it in and found that the computer no longer recognised it. I had last used it a few hours before that, and it worked perfectly fine then. To clarify, the power light was on, and the piece of code I had previously uploaded onto it was still working. Since then I have tried different fixes, such as buying a new cable and burning a new bootloader onto it with a spare Arduino. Neither worked, and I am at a loss as for what to do next/
sorry, "burning a new bootloader" via ISP did not work? Or did the burning work, but the new bootloader dis not change anything?
Please excuse any bad phrasing, I burned the bootloader via "Arduino as ISP" in Arduino IDE, and did not get any error messages, but nothing seemed to change.
Can you upload "bink" using Arduino ISP?
If you are luck then the USB connector has a bad solder joint. You could take your multimeter and check.
If your operating system does not recognise it, the serial-to-usb converter is damaged.
Please provide a wiring diagram so we can see how you connected everything; do not forget all possibly power connections. It might show why your board died.
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