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LED bulbs on old dimmer switches: Why they buzz or flicker and how to fix it
You swap a warm old incandescent for a shiny new LED, turn the dimmer down for dinner, and the room starts to hum or pulse.
In the previous chapter, we stored the current state in a variable and switched the LED operation mode every time the button was pressed.The signals sent to the LED so far have been of two types: HIGH ...
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