Like many others I have the timeout problem with my Chinese Arduino Mega 2560 r3 CH340. When I want to upload bigger sketches like Marlin it takes ages to compile and when it gets to the upload I get the error
avrdude: stk500v2_ReceiveMessage(): timeout
But when I upload small ones like the normal blink sketch it works just fine.
So the board should be fine I guess.
I also tried the thing with the 3 Exclamation Marks.
I'm pretty new to arduino and coding. So please if you have an idea let me know.
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