Editing Arduino Theremin

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The last program just told if the light was "on" or "off".  What we want to do is get an integer ( int ) that tell how bright the light is.  This is a conversion from the analog ( continuous ) value to a digital approximation.  To do this we use the Arduino's analog to digital converter ( adc ).  Open the project SerialBrightness1 and save it as SerialBrightnessAnalog.  Also open the sample project on analog to digital conversions Examples -> Analog -> AnalogInSerialOut.  This has pretty much all the code you need, but as an excercise use it as a guide to modifying your program.  Your program should output the brightness only when it changes.
 
The last program just told if the light was "on" or "off".  What we want to do is get an integer ( int ) that tell how bright the light is.  This is a conversion from the analog ( continuous ) value to a digital approximation.  To do this we use the Arduino's analog to digital converter ( adc ).  Open the project SerialBrightness1 and save it as SerialBrightnessAnalog.  Also open the sample project on analog to digital conversions Examples -> Analog -> AnalogInSerialOut.  This has pretty much all the code you need, but as an excercise use it as a guide to modifying your program.  Your program should output the brightness only when it changes.
 
[[Category:Arduino]]
 

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