How to simultaneously use 5 rotary encoders?

Using Arduino Sensors
#1

Hey all,
Is there a way for me to use 5 rotary encoders simultaneously with 1 Arduino mega? I need to program the Arduino to read the inputs of the rotary encoders (each will control a separate function) and then output data to respective channels on a digital potentiometer. How would one hook up multiple rotary encoders to the Arduino, and use them simultaneously?
Cheers!
Eren Semonik

#2

  1. Use PCINTs to decode the AB outputs of each.

  2. Use LS7184N from LSI/CSI. This chip creates a pulse out and a level to let you know which way the encoder is turning. Use PCINT for the pulse, and read the level. Respond accordingly in your sketch.
    http://www.lsicsi.com/pdfs/Data_Sheets/LS7183N_LS7184N.pdf
    About $3.50 a chip, have to work their distributors to see who has some.
    I used 4 of these with PCINT to read mechanical Bourne brand encoders in a '328P project.

#3

The other way is to use the pin change interrupt on one pin of each of the 5 encoders, Wire the other pin to normal inputs.

#4