The device achieves a throughput of 16 MIPS at 16 MHz and operates between 4.5-5.5 volts.By executing powerful instructions in a single clock cycle, the ATmega2560 achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.
However, you need to know functions of every pins before it can work better for you. The ATMEGA2560 pinout schematic is as shown in the picture below. It has 54 digital inputoutput 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. 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 2560 board is compatible with most shields designed for the Uno and the former boards Duemilanove or Diecimila. With 54 digital IO pins, 16 analog inputs and a larger space for your sketch it is the recommended board for 3D printers and robotics projects. A function is then used to display a line of text on the display as can be seen in the image a hello world program. Libraries are then installed and some example programs run which show how to use the display in an Arduino sketch. The data connection is I2C (IC, IIC or Inter-Integrated Circuit). This interface is sometimes called TWI (Two Wire Interface). Libraries are available that make it easy to start using the display right away to display text and graphics. Check your display to make sure that it is the same as the image below. If the pins are swapped, make sure to change the connections to the Arduino OLED VCC connects to 5V on the Arduino, OLED GND to GND on the Arduino. Pin connections are as follows for wiring the OLED display to an Arduino Uno. Arduino Mega 2560 Pinout Datasheet Driver Library IsThe SSD1306 driver library is used to initialize the display and provide low level display functions. The GFX library provides graphics functions for displaying text, drawing lines and circles, etc. This folder is usually found at Documents Arduino libraries on Windows systems. When the mouse cursor is hovered above the Include Library menu item, the new libraries can be found on the pop-out menu. In Windows the libraries appeared under Contributed libraries near the top of the pop-out menu on my system. On my Linux computer the libraries appeared under the Recommended libraries section of the pop-out menu near the bottom. The display size must be changed in the driver before it can be used. If it is not changed, an error message will appear when attempting to verify the example sketch (see the section below) in the Arduino IDE: error (Height incorrect, please fix AdafruitSSD1306.h). Scroll down the file to find the section with the header SSD1306 Displays or search for for this term in the text editor to find it quickly. Arduino Mega 2560 Pinout Datasheet Code In ThisComment out define SSD130612832 and uncomment define SSD130612864 so that the code in this section looks as follows. Change the address from 0x3D to 0x3C as shown in the code below. This address is not 0x78 or 0x7A as printed on the back of the OLED board. When building the sketch for an Arduino Uno the IDE will display a low memory warning message, but the sketch will still run. The example program starts by showing the Adafruit logo, it then turns on a single pixel. A quick start Arduino template sketch, text display demo and various graphics functions follow. Copy the code and use it as a basis for starting new OLED display projects.
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