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Classes/2010/VIS147A/Lab4

1 byte removed, 17:21, 1 February 2010

→‎Part 2 - Light Sensor

** measure the "dark" resistance. (cover the resistor with your hand, or try shutting it in one of the lab cabinets)

[[Image:Photo_resistor_Symbol.png]] [[Image:Photoresistor_2.jpg]]

** Set up a voltage divider with the photoresistor and a 10K resistor. You can take your circuit from before and replace the potentiometer with the photoresistor. What range of output voltages can you get by covering or uncovering the photoelement?

[[Image:Photoresistor_v_out.png| 200px]]

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