Completed the analog output lab using a photo cell to control the servo. It's amazing how varied the values are when using different analog sensors. When I was messing around with a flex sensor, my values fell in a tiny range between about 1017 to 1023. With the photocell, the values coming in were between 1 and 67, give or take. This was indoors on a cloudy day, so I imagine the values can shift quite a bit. I can see the importance of a calibration period at the start of a program in order to account for different light conditions.
Tuesday, June 2, 2009
Analog Output!
Completed the analog output lab using a photo cell to control the servo. It's amazing how varied the values are when using different analog sensors. When I was messing around with a flex sensor, my values fell in a tiny range between about 1017 to 1023. With the photocell, the values coming in were between 1 and 67, give or take. This was indoors on a cloudy day, so I imagine the values can shift quite a bit. I can see the importance of a calibration period at the start of a program in order to account for different light conditions.
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