Adding an Analog Input to the Pi (ADC)

I wrote a post on the Raspberry Pi forums about adding an analog input to the Pi by using an ADC. The application I used to describe it was to measure the 5V supply to the Pi, which is still a major source of problems and confusion.

Here is the post : https://www.raspberrypi.org/forums/viewtopic.php?f=37&t=123962

Enjoy!