It is available in a 100-pin Quad Flat Package. The Mega 2560 R3 board is compatible with most shields designed for Arduino Uno board. Arduino Mega is based on ATmega2560 Microcontroller, an 8-bit AVR Architecture based MCU from ATMEL. Using the board is also very easy, simply connect it to a computer with a USB cable or power it with DC adapter or battery to get started. It contains everything needed to support the microcontroller. This Board has 54 digital input/output pins (of which 15 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. You have a Mega2560, therefore it has an ATmega2560 microcontroller, selected by default as processor. Select your board type and port You'll need to select the entry in the Tools > Board menu that corresponds to your Arduino board. The Arduino Mega 2560 R3 works with all existing shields but can adapt to new shields which use these additional pins. Open your first sketch Open the LED blink example sketch: File > Examples >01.Basics > Blink. The other is a not connected and is reserved for future purposes. Im working now on Arduino MEGA 2560 pinout Stay tuned. liudr: Nice, especially the laminated printout and mounted arduino. One is the IOREF that allow the shields to adapt to the voltage provided from the board. Im also working on diagrams with basic connections for Arduino Uno at this link. In addition, there are two new pins placed near the RESET pin. The Mega 2560 R3 also adds SDA and SCL pins next to the AREF. All you have to do is replace the bootloader, and youre ready to go Theres also an alternative pinout for these microcontrollers - AVR pinout. Arduino Mega 2560 is an open source precise microcontroller board Successor to the Arduino Mega 2560 based on the ATmega2560 SMD chip. Now that support for the ATmega640/1280/2560 is added, you can use MegaCore with your Arduino Mega or Arduino Mega 2560.
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