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A simple slide potentiometer can go a long way. Rated at 10KOhm and 0.1W. Comes with solder tab connections. The pot has an overall travel of 30mm and has two mounting holes on top.
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Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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The pot works as expected. As mentioned in the comments there is no pinout diagram on the datasheet, though it was very easy to determine which pin does what by using a multimeter.
The datasheet also states that the two mounting holes are for M2 screws. I've tried various screws, even went out to buy a specific M2 kit from a local electronics store but they don't work. It looks like the 4 pots I ordered aren't even threaded to accept a screw. A little disappointed by this.
UPDATE: I bought an inexpensive tap and die set and tapped the holes to M3x0.5 screws. Cuts close to the outer edge of the pot, but at least I can mount it now.
Sorry to hear about these issues with the threading. We will contact our supplier to see if they can correct this issue for future parts that they send us.
Just an FYI, the only knob sold on SparkFun does not fit onto this slide pot. As you can see, this is a plastic post with some beveling on the sides. That beveling cracks the plastic mount on the knobs sold on SparkFun. You'll have to find other pots or knobs.
Also, if it's helpful, top singular pin is the ground, left bottom is voltage and right bottom is the signal.