Arduino Stack Exchange
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Questions tagged [potentiometer]

Electronic component forming a three-terminal resistor with a sliding contact. Acts as a variable resistor / voltage divider, manipulating the amount of current flowing through it.

Potentiometer - short form pot. Electronic component forming a three-terminal resistor with a sliding contact that acts as a variable resistor / voltage divider and lets a variable current flow through.

Potentiometers are commonly used to control electrical devices such as volume controls on audio equipment.

Wikipedia: http://en.wikipedia.org/wiki/Potentiometer

Potentiometer Explanation: http://www.electronics-tutorials.ws/io/io_2.html

Voltage Divider Tutorial: https://learn.sparkfun.com/tutorials/voltage-dividers

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Why can't I use just the digital pins and a ground to use a potentiometer?

First of all I am a newbie. So please excuse. After doing the first basic project, in which I had hooked up the positive of a LED to a digital input of the Arduino and the negative to the ground of the board, I am assuming that the digital pins in…
enoob
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Flexibility of SoftPot Membrane Potentiometer during the use?

Does anybody have some information or experiences with the flexibility of Spectra Symbol's SoftPot Membrane Potentiometer during the use? Is it possible to partly wind it up on a reel (or something similar) and use the remaining part dynamically…
user3704293
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Ribbon sensor resistance slowly drops when released

I recently bought a ribbon sensor (the one displayed here), with the intention to use it as a touch-enabled music instrument. I used it correctly (so it seems), but I have two issues : When not pressed, the sensor seems to give random data, as if…
Orange Lux
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Problem with a digital potentiometer application

I am a beginner when it comes to electronics, coding and things like that (this is practically the first time I have done anything like this), so when building an application that is supposed to vibrate a vibration motor with a strength based on the…
user16665
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How to I measure the duration of touch with a soft potentiometer?

I'm having a soft pot meter here and I would like to register the duration of the touch event. I'm having a different variable, which keeps going from 1024 to 0 , which regularly takes 60 seconds, but for every second you touch the soft pot meter…
Sander Schaeffer
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Proteus potentiometer value always highest

#include #define potpin A0 int savebutton=2; int button1=3; int button2=4; int button3=5; Servo servo1; Servo servo2; Servo servo3; int servo1ipos=90; int servo2ipos=90; int servo3ipos=90; int val=0; void setup() { // put your…
Raybom
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Trying to use an LCD 1602 to display, but I don't have a 10 KOhm potentiometer

I'm following this tutorial page and I don't have a 10k ohm potentiometer on hand. Could I replace it with resistors to simulate a manual setting and replace the resistors to adjust to a new settings. From what I was reading this pin is for contrast…
Tolure
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Arduino wait for change in value

I am currently working on a project that involves steering wheels, and I would like a way for Arduino to wait for a change in value. A potentiometer is used and I would like a program to run (say, like lights blinking ) until there is a change in…
See Jian Shin
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Potentiometer on motor for position control

I am using a wiper motor as a rotor. I am trying to get it to at least point in different azimuths (compass azimuths eg. 180 degrees) In order to do this, I am thinking about attaching a potentiometer on the axle inside the motor housing to see…
Johnathan Yaesu
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Potentiometer with switch wiring question. Not reading correctly

I have a potentiometer with switch, that seems to be working a little wonky (Keep in mind I have tried this with a few different pots and they all behave the same way which leads me to believe I am wiring them wrong). I can easily hookup the…
Chris James Champeau
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Why do I need to connect a potentiometer to a +5V source in 1602 tutorial?

I'm getting starter with the Arduino and I'm going through the classic tutorial, it says to connect the VO to a pot's wiper, and pot itself to +5v and ground, so I did. I tuned it and it worked, but then I thought, why do I need a pot if I don't…
You Care
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Potentiometer won't work

I'm trying to get the potentiometer seen at the top left of the photo to work, essentially as a dimmer. I've managed to upload the Arduino sketch, but it isn't working. Any help would be greatly appreciated! NB: I have little-to-no electronics…
Velocir
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Where to get the potentiometer that comes with Arduino kit

Does anyone know where I can get the potentiometer that comes with the Arduino kit? You can see them here. They are sold out on their website.
Michael Rader
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