Started with an old 3D Chameleon kit (2 or 2.5?) and printed the new Mk4 parts for it. Guessed my way through the assembly. Have flashed the board a few times, using different UNO boards. Here is where I am at currently. Any guidance would be appreciated. Thanks https://youtube.com/shorts/t8BY-jMchL8?si=p8zbl5jMKVUEaKSD
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Sorry, I had already closed the Arduino IDE window without taking a photo. I can run it again and take more photos if it will help.
Ok... it seems that something isn't quite right there... the clock speed seems to be very very fast. It doesn't seem it's burning the firmware with the correct fuse settings or clock settings, but I've never seen that symptom before. (The default clock speed should be the internal 8mhz clock... but this looks like it's running 3 or4 times as fast as it should be, which tells me the firmware is on the chip, but the settings for burning it are incorrect.)
Can you post the output of your arduino environment to see if there is an error being displayed?
Bill