Any chance we'll see these as a qwiic unit? With a programmable interface that will command the the slider to a set value, then leave it easy to manipulate? (Because using an h-bridge and worrying about direction, steps, jogging, stalling the motor, etc)

Hmm, these look almost exactly like Midas Pro faders used in their M32 digital mixer. You can get a set of 5 of those for $150, and they're probably much higher quality (rated at 1 million cycles instead of 30,000). Not to mention they come with cool conductive knobs and the Midas logo... these still look pretty good for the price.

I made a video about how to use this product because there seems to be a lot of confusion. https://www.youtube.com/watch?v=fEuUHqmlPD4

Can anybody please help me?

I was looking for motor-driven faders in order to implement a project. Everywhere I came across motorfaders with resistor values of 5k or 10k. Does anybody know where I can get such faders that have other resistor values, such as 20k, 100k and 500k? I would appreciate it if anybody can help me and knows where to get this stuff out there..

So it can do capacitive touch sensing? Heh heh. You guys missed a chance for a good sketch with Dave. A control that senses when someone is about to change it and dodges away from their finger.

Just created a cool audio mixing console project using this fader called the "Uni Mixer". Documentation was difficult to find. Here's a good, readable diagram I created with all of the pins, what they are used for, touch sense, etc:

https://raw.githubusercontent.com/beausilver/uni_mixer/master/Docs/DIY_Diagram.jpg

Here's a video of my project: http://youtu.be/j2H5q4l1yM4

And here's my code: https://github.com/beausilver/uni_mixer

Thanks Sparkfun, this is great fader! Cheers!

After an evening of tinkering I was able to make it work akin to the example video. I don't have it set up as a pong game, but I do have it hitting programmable set points.

Hooked up with ATtiny85 (adafruit trinket) and L293D (equivalent: https://www.sparkfun.com/products/315).

• Motor leads to OUT1 and OUT2 on L293D.
• Potentiometer lead 1 to Ground, 2 to an analogRead pin, and 3 to 5V. I didn't attach the other set, but I might try in case that improves sensitivity.
• The L293D gets 5V to +V and +Vmotor, and Ground to 0V. EN1 is hooked to a PWM pin, and IN1 and IN2 are hooked to digitalWrite pins.

I didn't have success using PWM; anything short of 255 would lock and buzz, so I changed my program around to use digitalWrite instead. Not sure if that issue was in my programming, wiring, or something else.

Here was my code. Please let me know if you have suggestions.

//Demo of accelerating hitTarget pattern
int enablePin = 0;   int in1Pin = 1;  int in2Pin = 2; 
int potPin = 2;  //on the ATtiny85, analogRead(2) is digital(4)
float pos = 0;

void setup() {
    pinMode(in1Pin, OUTPUT);
    pinMode(in2Pin, OUTPUT);
    pinMode(enablePin, OUTPUT);
}

void loop() {
    for (int d = 2000; d > 1; d /= 1.5) { 
      for (int t = 10; t <190; t+=30) {hitTarget(t); delay(d);}
      for (int t = 190; t>30; t-=30) {hitTarget(t); delay(d);}
    }
}
//Drives the motor toward goal and stops when close enough.
void hitTarget(int target) {
    int threshold = 2;
    readPos();
    while (abs(pos-target)>threshold) {
        if (target > pos ) { setMotor(1, 1); }
        if (target < pos ) { setMotor(1, 0); }
        readPos();
    }
    setMotor(0,1);
}

//Takes a smoothed reading. Works ok w/o smoothing too.
void readPos() {
    float readWeight = 0.7;
    pos = (1-readWeight)*pos + readWeight*analogRead(potPin)/4;
}

void setMotor(boolean on, boolean reverse) {
    digitalWrite(enablePin, on);
    digitalWrite(in1Pin, ! reverse);
    digitalWrite(in2Pin, reverse);
}

How much weight would this push vertically? And what part(s) would you nee to make a toggle switch move it up, and then the toggle switch pressed the other way to move it down? Would I need a circuit board or just the slide and a polarity switch

Can you publish the circuit and code for the sliders demo? Mine are moving but not very smoothly. Also, can you explain the reasoning for the dual variable resistors? Do you feed the motor power into one???

Got this working:

Photo of wiring: https://www.flickr.com/photos/lateplate/15068862612/ Arduino code: https://gist.github.com/chrisallick/49e80ea6c82eb1d9ae9d

I can post more details if anyone wants :)

Any additional discount for extra large orders (e.g. 500+)?

no sorry this could be linear. Be carefull that another product (COM-10734) is not linear.

I have bougth it but it is not linear it is a Log fader!!!!

Any possibility of getting the 60mm version? I would order a whole bunch of them (100+). And no, I'm not kidding.

Hi Expert, I am a 15 yr-old high school student and would like to use this as a linear servo to turn 12 eggs. I bought two from your place, but I am not sure how to connect them. If you could give me some starter code/example code for me to start with, that would be great. Right now, I am using an Arduino to drive a servo to push the eggs, but I would like to use a taper. Thanks! Trevor

Annoyingly, it seems that the knobs listed as the recommended knob for this fader are not conductive at all - when trying to do touch sensing through them, there's not nearly enough sensitivity through the knob.

Found this: http://www.hazelwoodsound.com/motorized-faders-and-the-arduino/

You can find more results by searching for "motorized fader," as it seems the most popular application of this component is with audio mixers.

+1 for example wiring and code.

I just purchased 2 of these for a project, but don't know what the pins are and unfortunately don't understand the diminutional drawing. Can someone list or diagram them?

You've made a terrific project in your product video. Why not document and post that with wiring and code? I think it'd relieve a lot of frustration and eliminate many of the questions.

I'd buy this if there was any indication of how to connect it. Even just pin descriptions would be useful. The data sheet doesn't really provide much data!

Is there a smaller version of this? One that would fit in a standard Single Gang wall box?

I'm surprised that there is no tutorial or schematic for how to hook it up

How fast do you think I could actuate this repeatedly back and forth at a constant rate? (Doesn't have to be full length)

I've been a happy customer of sparkfun for years, but this thing really annoyed me. There is no details in the datasheet as to how to connect this thing. So i had to try every combination. POFF... smoke. Awesome. Now I have a non working slider !!!!

Hey guys! I just ordered one of these for a 9S12 project I'm working on. Does anyone have some examples of a good way to implement servo feedback? I want to use them for analog input, but recall stored positions on command like a digital sound board. The 9S12 I'll be using has 12-bit ADCs so I want to come up with a fairly precise recall algorithm, but still run it all through a single micro. If all goes well, I intend to use 12 of them side by side. Thanks!

I get an idea from the video, but are these sliders virtually silent? I have a special application where I require a linear actuator type of movement with as little sound produced as possible. Thanks!

I get an idea from the video, but are these sliders virtually silent? I have a special application where I require a linear actuator type of movement with as little sound produced as possible. Thanks!

are you acually about to sell linear actuators that can do heavier loads?