Looking for a good tutorial on using LM3914 with LED bar and an Arduino

Other Hardware LEDs and Multiplexing
13

I am trying to learn how to use the LM3914 chip with a 10 segment LED bar and an Arduino Duo. I want to use a potentiometer to turn up and down the bar.

I can't find a good tutorial on how the LM3914 chip works and how to wire it to an Arduino.