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Results tagged with led
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user 49068
An LED is a type of light source which is typically fairly small and has low power requirements.
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A LED should be lit when 'high'. Why does mine only burn with 'low'?
So depending on how you have the LED wired up you can use either to turn on the LED. … Since LOW turns your LED on then you must have the long lead of the LED attached to +5v supply and the short lead to the pin on the arduino. …
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