Chat OnlineUNO R3 Opensource Board
Input voltage: No need for an external power supply when connected to the computer USB port
External power supply 5V ~ 9V DC voltage input
Output voltage: 5V and 3.3V DC output voltage DC output voltage
Using Atmel Atmega328 microprocessor
USB extend cable is included.
DUE 2012 R3 control board
The Arduino Due has a 32-bit ARM core that can outperform typical 8-bit microcontroller boards. The most significant differences are:
A 32-bit core, that allows operations on 4 bytes wide data within a single CPU clock.
CPU clock at 84Mhz
96KBytes of SRAM
512K Bytes of flash memory for code
A DMA controller, that can relieve the CPU from doing memory-intensive tasks
Microcontroller: AT91SAM3X8E
Operating voltage: 3.3V
Input voltage(recommended): 7V - 12V
Input voltage(limits): 6V - 16V
Digital I / O pins: 54(of which 12 provide PWM output)
Analog input pins: 12
Analog output pins: 2(DAC)
Total DC output current on all I / O lines: 130mA
DC current for 3.3V pin: 800mA
DC current for 5V pin: 800mA
Flash memory: 512KB all available for the user applications
SRAM: 96KB(two banks: 64KB and 32KB)
Clock speed: 84MHz
