I am still learning (slowly, lol).
I don't know what cascading is. Also, could you explaing about the left chip sensing greater
voltages?
I have other schematics that I "borrowed" from to get this.
I wanted to make sure I did it correctly to have to lm3914's connected to have 15 led's.
I used the values from the other schematics.
I really have no idea how to design these. I can build from them with no problem.
That's why I am on this forum, to learn how to do it myself.
I appreciate all the help, by the way.