Please make a copy of your project (not just an image) public so we can see your circuit and diagnose what might be wrong. https://easyeda.com/Doc/Tutorial/share.htm#Sharing In the meanwhile, these may help: **The EasyEDA Simulation eBook** https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub in particular: **Avoiding common mistakes** https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub#h.4d34og8 * Have you got a ground in your circuit? and: **Setting up Analyses** https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub#h.3fwokq0 https://easyeda.com/forum/topic/How_to_use_the_Potentiometer_and_Variable_Resistor_symbols_from_the_EasyEDA_Libs_-rfLvpjBSM https://easyeda.com/editor#id=mC82kCTN5 and: https://easyeda.com/andyfierman/Sweeping_a_potentiometer-3nlcM86QO

Hi Typical to measure a pots contributing resistance , is to have the wiper and either upper arm or lower arm (using one) joined to the wiper You need to move your probe to the lower arm - if that was the one you used ie the leg that was on its own. Rotating the pot now, as it moves you should see the changes occurring from not only resistance but also the poor action that a pot provides - it is after-all a mechanical wiping surface. If you have time compare it to other types of attenuation that remove the mechanical interface. Hope this helps

Thanks, it makes a lot more sense now. What was throwing me was the necessity for every node to trace back to a DC ground. I intended for the wiper of the pot to be my "output port", and all I had to do was connect a 10M resistor between the wiper and ground to make it all work. Andy, the links were just what I needed, thanks again.

You haven't posted a public copy of your simulation so I am guessing but I suspect that if you ground the negative end of the voltage source (which presumably connects to one end of the pot track) and put a VolProbe on the slider then you will not need the 10Meg resistor to ground and your probing will be simplified.

You haven't posted a public copy of your simulation so I am guessing but if you ground the negative end of the voltage source (which presumably connects to one end of the pot track) and put just one VolProbe on the slider then you will not need the 10Meg resistor to ground. This will also simplify your probing.

Sorry about the duplicate post. The first one didn't show up right away so I thought I'd accidentally lost it. Here's an example of what I was describing: https://easyeda.com/editor#id=mC82kCTN5

After playing with it some last night, here's what I ended up with. https://easyeda.com/editor#id=8SPCqe61of It seems to like 1000k pots more than it likes 1M pots as well. But everything works as expected now. Question...does the 1.3k on the voltage source actually insert a series resistance, or is that just a label? It doesn't make much difference, but I'd like to know for future reference. (The tutorial implied that it was just a label, and that I had to explicitly insert a series resistance).

The `EasyEDA Source` voltage sources are poorly documented and are buggy. Please replace it with a standard spice independent voltage source. This is the `Voltage Source`. That can be configured as described in the Simulation eBook. The reason 1000k works and 1M does not is: https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub#h.3dy6vkm **1M** = 1e-3 if you want 1e6 then you **must** use **1Meg**. BTW: I now see why you needed a 10Meg to ground from the slider.