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→Potentiometer
[[Image:Pot_in.png]] [[Image:Pot_photo.JPG|400px]]
The simple potentiometer voltage divider can be connected to an of the Analog In pins (0-5) on your Arduino. [[Image:Freeduino_seedstudio_labelled.png]] By default, the ''AnalogInput'' program expects the potentiometer to be connected on Analog In 0, the value of <code>sensorPin</code> variable at the top of the program.
QUESTION: What will the voltage output of the simple potentiometer circuit be? What are the upper and lower voltage values as you turn the knob, and where do they occur? Highest voltage ____, position ____. Lowest voltage ____, position ____. (HINT: this is a voltage divider. How do you calculate the voltage in a voltage divider?)
