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Topic: Loop Back Test Failed (Read 621 times) previous topic - next topic


No Tone or any activity in device manager In windows Please help. :~


What Arduino do you have?
What have you tried?
No technical PMs.
The last thing you did is where you should start looking.


I have arduino uno r3,  last time I connected it to my pc it can't detect in device manager I tried looptest posted here but no ssuccess pls help.

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