Introduction to Arduino Mega 2560 Rev3

What is Arduino Mega 2560 Rev3

• Arduino Mega 2560 Rev3 is a type of microcontroller based on the ATmega2560 microcontroller. It main component for controlling different circuits and devices that work in the human brain. Different memory units such as SRAM, EEPROM, and Flash memory are configured on this controller.

Arduino Mega 2560 Rev3 Features

Technical Features of Arduino Mega 2560 Rev3

• The technical features of the Arduino Mega 2560 Rev3 are discussed here
• Microcontroller type: ATmega2560
• Operating voltage: five volts
• Input voltage: 7 to 12V
• Input voltage (limit): 6 to 20V
• Digital I/O pins: 54 (fifteen are PWM outputs)
• Analog input pins: Sixteen
• DC for single  I/O pinout: 20 milliamperes
• DC for 3.3V pin: 50 milliamperes
• Flash memory: 256 KB of which 8 KB is used by the bootloader
• SRAM: 8 kilobyte
• EEPROM: 4 kilobyte
• Clock speed: 16 Megahertz

Arduino Mega 2560 Rev3 Pinout

•  Her details of pins operation are explained

Arduino Mega 2560 Rev3 Programming

• Mega 2560 board gets programmed through Arduino’s IDE, CLI, and Web Editor.  Preprogrammed through a bootloader the ATmega2560 helps to upload new code without the use of any hardware programmer.
• This bootloader can bypassed through the ICSP header with the use of Arduino ISP.
• Arduino repository comes with ATmega16U2 that can loaded with a DFU bootloader operated through a resistor that pulls the 8U2/16U2 HWB line to the ground.

How to Power Arduino Mega 2560 Rev3

• The power to the Arduino board gets from a USB connection or outer power source AC to DC adapter or battery.
• There is a need of a power jack of 2.1mm center-positive plug that has features to handle 6-20 volts of external supply. The recommended voltatge value is seven to twelve volts.
• At Vin pin external power sources are connected, and five volts regulate 5V output on board through a DC power jack or USB connector.
• The 3.3 pin regulates 3.3-volt output at a high current of 50 mA.
• GND pin IOREF pin sets working voltage as reference.

Communication Protocol

• The Arduino Mega 2560 board comes with features to communicate to computers, other Arduino boards or controllers. it comes with an ATmega2560 that provides UART TTL five volts serial communication. The ATmega16U2 offers serial communication through a USB that exists as a Com port. It uses USB COM standard drivers and .inf files for Windows devices.
• Arduino Software (IDE) comes with a monitor that transmits textual data to and from the board. At the time of data transmission through USB to serial chip and USB connection, Rx and TX led works and not for communication through pins zero and one.