README

README for AdaEncoder

Note that you MUST connect the two pins for your rotary encoder to 2 pins on the same PORT on the ATmega chip. If you do not, your sketch will simply reset. I should probably remove this restriction one day.

ALWAYS make sure you are using the latest version of the ooPinChangeInt library. Check this page for the latest version and status: http://code.google.com/p/oopinchangeint/

These are the PORTs on the ATmega328:

• Arduino Pins PORT

• ---

• Digital 0-7 D
• Digital 8-13 B
• Analog 0-5 C (== digital pins 14-19)

ATMEGA2560 Pin Change Interrupts, pins and PORTs:

Arduino              Arduino              Arduino
  Pin*  PORT PCINT     Pin   PORT PCINT     Pin   PORT PCINT
  A8     PK0  16       10     PB4   4       SS     PB0   0
  A9     PK1  17       11     PB5   5       SCK    PB1   1
 A10     PK2  18       12     PB6   6       MOSI   PB2   2
 A11     PK3  19       13     PB7   7     MISO   PB3   3
 A12     PK4  20       14     PJ1  10
 A13     PK5  21       15     PJ0   9
 A14     PK6  22        0     PE0   8 - this one is a little odd.*
 A15     PK7  23

• Note: Arduino Pin 0 is PE0 (PCINT8), which is RX0. Also, it is the only other pin on another port on PCI1. Therefore, this pin is not supported by this library.