Arduino comparison

Characteristic Sanguino Arduino Arduino Mega Leonardo
Processor atmega644P atmega328 atmega1280 atmega32U4
GPIO Pins 32 20 54 26
Analog Pins 8 6 16 12
PWM Pins 6 6 14 8
Flash Memory 64K 32K 128K 32K
RAM 4096 bytes 2048 bytes 8192 bytes 3072 bytes
EEPROM 2048 bytes 1024 bytes 4096 bytes 1024 bytes
External Interrupts 3 2 32 13
JTAG yes no yes yes
I2C yes yes yes yes
SPI yes yes yes 2
USARTs 2 1 4 1
Onboard USB<->Serial Converter? no yes yes in-chip
         
         
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