Once I realized that I wanted more information than just the presence of water alone, and that reasonable measurements are possible for cheap, I placed the EC sensor on the back burner, for now. At least until my head is above water.
I do intend on coming back to this, pending demand. Right now, I am having a lot of fun with an optical IR sensor.
Though, if you did make the class, I believe I would use it. Lucky for Sara, I had waited to send that email asking about how homemade sensor data made its way to MMW.
I am still figuring what will be the best strategy, EC may be it and may come back to this sooner than I expect.
I will for sure be reaching out.