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Project:AC Intensity Controller: Difference between revisions
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== Design == | == Design == | ||
[[Image:AC Dimmer Board.png|frame|right]] | |||
To detect the zero-crossing a zener diode (actually a diode and 3 LEDs) converts the AC waveform in to a square wave, which is passed in to an optoisolator (e.g. the CNY17-3) before being passed to the microcontroller. | To detect the zero-crossing a zener diode (actually a diode and 3 LEDs) converts the AC waveform in to a square wave, which is passed in to an optoisolator (e.g. the CNY17-3) before being passed to the microcontroller. | ||
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In my prototype I have been using an Arduino Uno, but intend to replace this with a [[Project:Nanode|Nanode]] once the PCB is complete and it is ready for enclosure. | In my prototype I have been using an Arduino Uno, but intend to replace this with a [[Project:Nanode|Nanode]] once the PCB is complete and it is ready for enclosure. | ||
[[Image:AC Dimmer Schematic.png]] | |||
== Application == | == Application == | ||
