Hello,
I got my UNO yesterday, and I hear ground noises in my headphones (which dont have integrated mic). I run my UNO on batteries (no USB cable). I made the latest firmware update.
The noise is related to the numbers displayed on the screen (more numbers = more noises, there are less noises when 1 is displayed)
How can I fix this ? I know that im not alone because I saw people with the same problem on this forum
Thanks for your help