dimmer Controller circuit

  
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Connect a 12 volt 20 watt lamp and 12 volt battery to the circuit (observe battery polarity). Momentarily press and release the button to turn the lamp on. Repeatedly press the button to cycle through the power levels. Pressing and holding the button will turn the lamp off. I have provided commented assembly code as well as the hex code for progra
dimmer Controller circuit - schematic

mming. Feel free to modify or add to the code as you wish. The basic circuit can easily be expanded to control additional HEXFETs, additional buttons, etc. There are 11 more I/O lines open for use. Also, the EEPROM memory could be used to "remember" settings when power is turned off.



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