My Arduino Uno is out of the box. The IDE software has been installed and I have tried to launch "Blink" as a trial programme. No luck. I suppose this was because I used a resistor and a LED rather than the built in LED, and I didn't know how to edit the programming. OK, so I unplugged the LED a…

Can someone help me get started?

Z4KK4 October 31, 2021, 9:45pm 3

This is your first error

Same problem with Arduino tutorial book; check where the variable is declared

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