SparkFun Forums 

Where electronics enthusiasts find answers.

Howdy, has anyone here used the SIMetrix Simplis circuit simulation tool? It's like LTSpice or other spice modeling sims. I've been trying to create my own parts, and that has worked well, but now I want to use variables in the circuit models and have the user select values from a drop-down menu for these custom parts. As an example I tried making a resistor with drop-down menu to choose resistance but it just isn't working. I'm sure I've got a syntax error somewhere in the parameters or properties but I don't know what to do and I need help.
The properties
resistor2.PNG (28.61 KiB) Viewed 2769 times
The custom symbol using the circuit model from image0, with the drop down menu displayed. The value in the drop down menu should get passed to MY_RES and used in the resistor, but it isn't.
resistor1.PNG (9.43 KiB) Viewed 2769 times
The circuit model for this custom resistor. {MY_RES} is the variable for resistance.
resistor0.PNG (2.62 KiB) Viewed 2769 times