Arduino Due
The new Arduino Due board is the first Arduino to be based on an ARM Coretex M3 micro (rather than the usual AVR micro). This is still an Atmel chip but it will have more in common with the Mbed, LPCXpresso, etc. At time of writing I am still yet to receive my first Due board but I'm reliably informed that it's in the post!
So what is all the fuss about? Did you even notice any fuss? Well, it's a move away from the old AVR architecture and into a bigger arena. ARM is massive! What we, as Arduino users, get is an Arduino with a shed load more speed, and capacity. There are some potential downsides in the area of legacy Arduino convenience (e.g. the 3.3v logic) but these are small problems for those who appreciate the extra power.
Useful links in these early days:-
- http://arduino.cc/en/Main/ArduinoBoardDue
- Due Arduino forum: http://arduino.cc/forum/index.php/board,87.0.html
- Atmel's ARM page: http://www.atmel.com/arm/?sf13808117=1
- CMCIS standard for ARM Coretex: http://www.arm.com/products/processors/cortex-m/cortex-microcontroller-software-interface-standard.php
- BOSSA: http://www.shumatech.com/web/products/bossa
- Teensy 3 and Due: http://rcarduino.blogspot.fi/2012/09/arduino-due.html
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|
Arduino UNO |
Arduino Mega |
Arduino Due |
|
MCU |
ATMega 328 |
ATMega 2560 |
AT91SAM3X8E |
|
Architecture |
8 bit AVR |
8 bit AVR |
32 bit ARM Cortex M3 |
|
CPU Speed |
16Mhz |
16Mhz |
84 Mhz |
|
Flash Memory |
32K |
256K |
512K |
|
RAM |
2K |
8K |
96K |
|
EEPROM |
1K |
4K |
250K |
|
Digital Pins |
14 |
54 |
54 |
|
PWM Pins |
6 |
15 |
16 |
|
AnalogInputs |
6 |
16 |
12 |
|
DAC |
0 |
0 |
2 |