Hi! I'm facing a problem while uploading sketch to Arduino uno r3.
After I connect it and try to upload an example code, the RX and TX led blind twice at first then the RX led blink for about 22 times and then the message comes "An error occurred while uploading the sketch."
I've already done the loop back test. Everything's fine there. But the code can't be uploaded.
@ Soumyadeep01
Please start your OWN thread with specific details about your issue.