Resistors

This brick is based on a potentiometer, rotary angle from 0-300 degree.

This Rotation Sensor V1 is arduino compatible and can be rotated upto 300-degree. It is based on the potentiometer. With the Arduino IO expansion board, in combination, it can be very easy to achieve position-dependent interaction with the rotating effect or produce MIDI instrument.

Specification

•  Interface type: Analog  
• 300 degree rotation sensor

Single turn 10K Ohm Trimmer Potentiometers. Trimpots are perfect for testing ADC setups, setting LCD contrast, and a multitude of other applications. Leads can be straightened and inserted into a breadboard.

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Yes you read that correctly - 1 Farad capacitor. This small cap can be charged up and then slowly dissapated running an entire system for hours. Combine two in series for 0.5F/5V. Do not over voltage or reverse polarize these capacitors.

Documents:

• Datasheet



There are lots of trimpots out there. Some are very large, some so small they require a screwdriver. Here at SparkFun, we just needed a simple one that worked. This 10K trimmable potentiometer has a small knob built right in and it's breadboard friendly to boot! Perfect for your next LCD contrast adjuster, opamp setting, or volume level. This model # is TSR-3386U within the datasheet.

• SFE Eagle Library has this part!

Documents:

• Datasheet(Note pins are in a single row, as shown in the pictures)



Potentiometers are incredibly useful, whether you're controlling the volume on your stereo or the 'mood lighting' in your room. The problem with traditional potentiometers the fact that your microcontroller doesn't have an easy way to interface with them. Digital Potentiometers solve that problem by allowing you to control a voltage splitter with digital signals.

Wire it up just like a potentiometer and use serial signals to 'turn the knob.' Another handy feature of digital potentiometers is that because they aren't controlled mechanically, they don't have a pre-determined sweep profile.In other words, depending on the way you write your code the potentiometer can 'sweep' in a linear fashion, a logarithmic fashion, or according to any other profile you like. Digital potentiometers can also be used in conjunction with rotary encoders to consolidate large banks of potentiometers into one 'smart' rotary control.

Documents:

• Learn More

A simple slide potentiometer can go a long way. Rated at 10kOhm and 0.5W. Comes withe solder lug connections.

Documents:

• Datasheet

This V2 Rotation Sensor  is arduino compatible multi-ring rotation sensor. It is based on multi-turn precision potentiometer. It can rotate upto 10 laps. The voltage can be subdivided into 1024 copies. With the usage of special sensors expansion can be achieved accurately. It is easy to be connected to Arduino or DFRduino with our sensor expansion board.

Specification

• Arduino compatible
• Interface type: Analog

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 outer pins will vary from 10K Ohm to about 50 Ohm. The pot is linear meaning the resistance will vary linearly with its position. This is a good choice for general user interfaces.

This pot works great in a breadboard but on a few breadboards, you may have to trim off the large metal anchors.

Documents:

• Datasheet
• Part #: EVU-F2AF30B14

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 4.7K linear taper. Check the datasheet for dimensional drawings.

Documents:

• Datasheet
• How potentiometers work

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 logarithmic taper. Check the datasheet for dimensional drawings.

Documents:

• Datasheet
• How potentiometers work

Well, yet another potentiometer - with NEEDLES!
Able to be tweaked with 1200 mark (total 10 cycles, 120 mark/cycle). Should be good enough to help shoot some stars.