![]() ![]() I am a PIC man, so I did not and had to order one. If you've ever worked with an ATmega chip before, you might have an AVR programmer already lying around that you can use. This 6-pin header is where you'll connect your AVR programmer Without this chip you can't use the USB cable to upload sketches, but thankfully there is an alternative way to program your Arduino. The ATmel8U2 chip replaced the FTDI chip from the earlier Arduino models and controls the USB-to-serial communications. Long story short, I fried the ATmel8U2 chip on my Arduino Mega board. ![]() You might have wondered why I didn't include a video in the last blog post on motor drivers. The solutions that worked for the other boards don't apply to the Arduino Mega 2560 because its flash memory is larger than 128kb and therefore uses a different uploading protocol. This problem is a lot more trivial for the other boards, but the ATmega2560 chip causes a lot of new problems due to its large memory size. After much trail and error, I think I may have found a sure way to upload sketches to your Arduino Mega 2560 without a functioning USB chip. I searched all over the internet for a solution for the Arduino Mega 2560, but never found a definitive answer. This post assumes that you have the same problem that I do, a busted USB chip. As long as you didn't damage the micro-controller, you still might be able to use your Arduino board. ![]()
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