I highly suggest you browse through the datasheet for the. This component has a maximum operating voltage tolerance of 2.7V - 5.5V, depending upon model and clock frequency. The microcontroller on this particular board is the ATmega2560 ( datasheet ). More information at the Arduino page here. VIN: Input pin for external power supply with a voltage range from 7 to 12 volts. The Arduino hardware is a development board (usually) based around Atmel AVR microcontrollers. This board offers several great functions such as:Īdditional features coming with this R3 version are:ĪTmega16U2 instead 8U2 as USB-to-Serial converter.ġ.0 pinout: added SDA and SCL pins for TWI communication placed near to the AREF pin and two other new pins placed near to the RESET pin, the IOREF that allow the shields to adapt to the voltage provided from the board and the second one is a not connected pin, that is reserved for future purposes. The Mega is compatible with most shields designed for the Arduino Duemilanove or Diecimila. 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. 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. The Arduino Mega 2560 R3 is a microcontroller board based on the ATmega2560. It makes a great controller board for RepRap. Find the same information in the Ultimate Arduino MEGA 2560 Hardware Manual for the Arduino MEGA 2560. Refer to the Ultimate Arduino Uno Hardware Manual for the Arduino Uno to find out how analog pins are configured as digital input/output pins, as well as analog input pins. The new Arduino Mega 2560 R3 is a microcontroller board which is an upgrade from the Arduino Mega. That is because they are multi-function pins.
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