Arduino Due

Pinout

• 

  Arduino Mega and Due

• 

  Arduino Mega

• 

  Arduino Due

Changes for Arduino Due

1. Each Arduino Due I/O pin can provide a current of 3mA or 15mA (see pin mapping). Transistors are needed for LEDs, speaker etc.
2. The Arduino Due runs at 3.3V. Therefore, all signal lines also need to run at 3.3V:

Module 5V signal output-----10k---+---20k---GND
                                  | 
                                  |
                    Arduino Due 3.3V signal input

Following modules and pins use 5V signal output:

  Module                   Signal output
  Pre-amplifier LM386      OUT
  Motor driver MC33926     M1_FB, M2_FB
  Ultrasonic HC-SR04       Echo

Following modules already use 3.3V signal output (and use 3.3V compatible signal inputs):

  Module                   Signal output
  WIFI ESP8266             TX
  Bluetooth HC-05          TX
  GPS GY-NEO6MV2           TX
  IMU GY-80                SDA
  RTC DS1307               SDA
  Current sensor INA169    OUT