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i urgently need a speaker simulator program for the project. i try searching my intrnet but cannot find much that is good. please someone must have some like anyone have library or source code for it?
A LED that is connected directly to a processor pin without a series resistor is likely to light up very bright, but for a limited time.
Very few LED are suitable for direct connection to 3.3V and the problem is evern worse if you have a processor with 5V output logic.