[SeanHodgins] has a project in mind where he needs to sample over 500 analog ... There are five input pins to the chip which lets you connect one analog pin to any one of 32 analog pins.

Luckily [Paul Martinsen] has put together a primer of three different ways to use an Arduino to filter signals. The first (and fastest, simplest, etc.) way to filter an analog signal is to sample ...

As for the pins, the UNO features 14 digital pins for both input and output use, six analog pins for input ... small using one of the built-in examples in the Arduino IDE. The most beginner ...