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Week 3 Lab

18 bytes added, 00:39, 14 April 2009
photoresistor
=== other loads ===
==== photoresistor ====
* taking the photoresistor from your 147A kit, it has a resistance of ~160k 140k - ~10k 800 (depending on your lighting conditions)
* Q: With the same R2 resistor (10k) from above, replacing R1 with the photoresistor, what range of voltages (and corresponding data values) would you expect to see at your A_IN pin?
* Q: Using methods you invented above, verify your data readings.
* Q: How could you make this more sensitive? There are least three ways to try... think in terms of the physical enclosurearound the sensor, the hardware setup (a voltage divider), and the software (look at File->Sketchbook->Analog->Calibration...)
* Q: Would changing the code make it more sensitive?
<code>

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