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Notice: This page contains information for the legacy Phidget21 Library. Phidget21 is out of support. Bugfixes may be considered on a case by case basis. Phidget21 does not support VINT Phidgets, or new USB Phidgets released after 2020. We maintain a selection of legacy devices for sale that are supported in Phidget21. We recommend that new projects be developed against the Phidget22 Library.
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Potentiometer Primer
Under Construction
- everything
Introduction
Potentiometers are three terminal resistors with one contact, known as the wiper, which slides across the device in order to create a variable voltage divider. They can also be used with just 2 terminals connected in which case they behave like a variable resistor or rheostat. Potentiometers are a common choice for human interface devices since they can easily be made to resemble a dial or track slider.
How Potentiometers Work
There are 3 pieces to a potentiometer:
