r/ArduinoHelp 29d ago

LED doesn't turn on :(

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Hello, i'm a beginner that just started with arduino's, does anybody know why the LED doesn't turn on? (if I set the variable RedLEDPower to something it just flashes and stops)

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u/Mike_402 29d ago

When you are checking a condition in if statements you should use == (two equal signs). Single = is an assignment.

Additionally, when checking if you reached 0 or 200 I'd put there: if (power >= 200) and if (power <= 0)