This is a pin map for the Arduino Mega 2560 Rev3. All used ports are

Arduino Mega 2560 Rev3 — Arduino Official Store

Les ports ARDUINO: gérer un feu tricolore

Arduino Mega 2560 ADK

ATmega2560-Arduino Pin Mapping

Arduino - ArduinoBoardMega2560

OBD2 for Arduino Elektor Magazine

Introduction to Arduino Mega 2560 - The Engineering Projects

OpenCR 1.0

Arduino MEGA 2560

Arduino Mega 2560 Rev3 Pinout, Atmega2560 Pin Mapping, EAGLE Files, Schematics, and More! - element14 Community

Arduino Mega ADK Android Rev3 Botland - Robotic Shop

4. Arduino Technical Details - Arduino: A Technical Reference [Book]

Arduino Mega Tutorial - Pinout and Schematics. Mega 2560 Specifications

Arduino Mega2560 R3 pinouts photo - #35 by GolamMostafa - Microcontrollers - Arduino Forum