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This is the updated DFRduino Mega 2560 V3.0 which is now fully compatible with Arduino Mega 2560 R3. The Arduino Mega is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins (of which 14 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Mega is compatible with most shields designed for the Arduino Duemilanove, Diecimila or Uno.
One cool thing about our DFRduino microcontrollers is that the hearders with different colors are used to differentiate I/O ports in an relatively easy way: red indicates Power Section, blue indicates Analog I/O and green indicates Digital I/O. This kind of correspondence match exactly the same with our sensors, making it even cooler and more user-friendly.
The R3 board enjoys following new features:
Added SDA and SCL pins that are close to AREF pin and two other new pins close to RESET pin, allowing voltage adaptation with IOREF. Our shields will be fully compatible both with the AVR boards operating @5V and Due @3.3V in future.
Improved RESET circuit
Replacing the Atmega 8U2 with Atmega 16U2 (datasheet)
Specifications
Compatible with Arduino Mega 2560 R3
Microcontroller: ATmega2560
Operating Voltage: 5V
Input Voltage (recommended): 7-12V
Digital I/O Pins: 54 (of which 14 provide PWM output)
Analog Input Pins: 16
DC Current per I/O Pin: 40 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 256 KB of which 8 KB used by bootloader
SRAM: 8 KB
EEPROM: 4 KB
Clock Speed: 16 MHz
The Mega is compatible with:
Mega Prototyping Shield For Arduino Mega
Mega IO Expansion Shield V2.3 For Arduino Mega
Mega-multi Expansion Shield
LCD Keypad Shield For Arduino
2A Motor Shield for Arduino
Stepper Motor Driver Shield for Arduino
Screw Shield V3 for Arduino
Xbee Shield
DFRduino Ethernet Shield (Support Mega and SD)
Relay Shield for Arduino V2.1
WIFI Shield V2.2
IO Expansion Shield For Arduino(V7)
And other arduino standard size shields...
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УЛ555699:3795
