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Rotary Potentiometer - 100k Ohm, Linear (Panel Mount)
Price: $3.44
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Sparkfun Item #: COM-14622 -

An adjustable potentiometer can open up many interesting user interfaces. With this rotary potentiometer just turn the dial and the resistance changes. This potentiometer from Bourns has a ¼" metal knurled shaft diameter, solder lug terminals, no detents, and has a 100K linear taper. Connect VCC to an outer pin, GND to the other, and the center pin will have a voltage that varies from 0 to VCC depending on the rotation of the pot. Hook the center pin to an ADC on a microcontroller and get a...

Rotary Potentiometer - 100k Ohm, Logarithmic (Panel Mount)
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Price: $3.31
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Availability: Back Order
Sparkfun Item #: COM-14624 -

An adjustable potentiometer can open up many interesting user interfaces. With this rotary potentiometer just turn the dial and the resistance changes. This potentiometer from Bourns has a ¼" metal knurled shaft diameter, PC pin terminals, no detents, and has a 100K logarithmic taper. Connect VCC to an outer pin, GND to the other, and the center pin will have a voltage that varies from 0 to VCC depending on the rotation of the pot. Hook the center pin to an ADC on a microcontroller and get a...

Rotary Potentiometer - 10k Ohm, Linear
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Price: $1.77
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Sparkfun Item #: COM-09939 -

An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VCC to an outer pin, GND to the other, and the center pin will have a voltage that varies from 0 to VCC depending on the rotation of the pot. Hook the center pin to an ADC on a microcontroller and get a variable input from the user! This pot has a 1/4" mounting diameter and has a 10K linear taper. Check the datasheet for dimensional drawings. Documents: Datasheet How...

Rotary Potentiometer - Linear (10k ohm)
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Price: $1.99
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Availability: Back Order
Sparkfun Item #: COM-09288 -

An adjustable potentiometer can open up many interesting user interfaces. Turn the pot and the resistance changes. Connect VCC to an outer pin, GND to the other, and the center pin will have a voltage that varies from 0 to VCC depending on the rotation of the pot. Hook the center pin to an ADC on a microcontroller and get a variable input from the user! This is a center-tap linear type potentiometer. The outer two pins will always show 10K resistance, the center pin resistance to one of the...

SparkFun Rotary Switch Potentiometer Breakout
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Price: $5.08
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Sparkfun Item #: BOB-13099 -

The SparkFun Rotary Switch Potentiometer Breakout is a small board the allows you to add resistors to a 10-position rotary switch, turning it into a potentiometer with 10 discrete steps. Multiple applications require potentiometers that are hard to find due to specific resistance values or custom tapers, the Rotary Switch Potentiometer board allows you to populate your own resistors to help match situations where ordinary parts aren’t available or suitable. Specific resistors can also be used...