Introduction to ATmega2560 Microcontroller Architecture Feautures Register mode-pinout Applications
Introduction ATmega2560 Microcontrollers :
This is quite a bit easier than updating the firmware on the ATmega16U2. Here's what I did. Stuff you will need: Your Arduino Mega. An USBtinyISP (mine says USBtinyISP v3.0). Various software that I will mention Download the latest version of the Arduino IDE. Download or install the USBtinyISP driver found HERE. Download and install WinAVR, found HERE. Detailed instructions are found HERE. Open the Arduino IDE. Select your board and the USBtinyISP programmer (do not select a COM port).Atmel-ICE is a powerful development tool for debugging and programming ARM Cortex-M-based SAM and AVR microcontrollers with on-chip debug capability.
The MEGA 25600 is designed for more complex projects. With 54 digital I/O pins, 16 analog inputs, or a larger space for your sketch it is the recommended board for 3D printers and robotics projects. This gives your projects plenty of room or opportunities. While Arduino Nano is a breadboard-friendly version of Arduino UNO with more and less the same features, Arduino Mega is completely a different board. It can be considered a big brother to both UNO and Nano, in terms of size as well as features. Arduino Mega is based on an ATmega2560 Microcontroller and an 8-bit AVR Architecture-based MCU from ATMEL. It is available in a 100-pin Quad Flat Package. It is designed and developed to provide more IO lines (both Digital and Analog), more flash memory, and more RAM when compared to UNO.
Spceifications:
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Density: 256 kB
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Frequency: 16 MHz
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Max Frequency: 16 MHz
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Max Operating Temperature: 85 C
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Max Supply Voltage: 5.5 V
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Memory Size: 256 kB
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Min Supply Voltage: 4.5 V
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Operating Supply Voltage: 5 V
ATmega2560 Microcontrollers Pinout Configuration:
1. SPI (pin-12) :Pins 50 (MISO), 51 (MOSI), 52 (SCK), and 53 (SS) support SPI communication using the SPI library. They are also broken out on the ICSP header, which is compatible with Uno, Duemilanove, and Diecimilia.
2. LED (pin-13) : Pin connects to the built-in LED. When the pis have a HIGH value the LED is on, and when it is a LOW value it's off.
3. Reset (pin-14) :for this pin bring the reset line LOW to reset the microcontroller. This pin is typically used when there is a shield that is blocking the reset on the board.
Read Also:
Circuit Operation:
The ATMega2560 is an 8-bit AVR microcontroller that comes with 86 programmable GPIO pins, PWM, ADC, or timer peripherals. It could be programmed using Atmel Studio and a dedicated programmer, using another ATMega microcontroller, or using the Arduino development environment. The easiest to use is the Arduino Mega board, which contains the ATMega3560 or can be programmed over USB from the Arduino software. The GPIO pins are also mapped internally to the peripherals like SPI, USART, or SPI. The ATMega2560 uses 5V logic levels so it might not be compatible with 3.3V sensors or other peripherals. This is not a major limitation, it could be overcome using level-shifting circuits. Thanks to its large number of GPIO pins, the ATMega25600 overcomes the limitations of smaller microcontrollers like the ATMega328P and allows it to communicate with more sensors or peripherals, also leaving a large number of GPIO the pins available for other tasks.
The Arduino Mega 2560 is a microcontroller of the board based on the ATmega 2560. It has 54 digital input/output pins (of which 15 could be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power supply 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 supply it with an AC-to-DC adapter or battery to get started. The Mega 2560 board is compatible with most shields designed for the Uno or the former boards Duemilanove or Diecimila.
The high-performance, low-power supply Microchip 8-bit AVR RISC-based microcontroller combines 256KB ISP flash memory, 8KB SRAM, 4KB EEPROM, 86 general purpose I/O lines, 32 general purpose working registers, real-time counter, six flexible timer/counters with compare modes, PWM, 4 USARTs, byte-oriented two-wire serial interface, 16-channel 10-bit A/D converter, and a JTAG interface for on-chip debugging. The device achieves a throughput of 16 MIPS at 16 MHz or operates between 4.5 and 5.5 volts.By executing powerful instructions in a single clock cycle, the device achieves a throughput approaching 1 MIPS per MHz, balancing power supply consumption and processing speed.
Frequently Asked Questions
How to use ATmega2560?
You will need to select the entry in the Tools > Board menu that corresponds to your Arduino board. You have a Mega2560, therefore it has an ATmega2560 microcontroller, selected by default as the processor. Select the serial of the device of the board from the Tools.
what is the analog input of Mega 2560?
The Mega2560 has 16 analog inputs, each of which provides 10 bits of resolution (i.e. 1024 different values). By default they measure from ground to 5 v, though is it possible to change the upper end of their range using the AREF pin or analog Reference.
What are the advantages of Arduino Mega 2560?
Arduino boards use SRAM (Static Random-Access Memory). The Mega 2560 has the most SRAM space with 8 kB, which is 4x more than the Uno, or 3.2x more than the Micro. With more SRAM space, the Arduino has more space to create or manipulate variables when it runs.
Does Arduino Mega 2560 have EEPROM?
The supported micro-controllers on the various Arduino or Genuino boards have different amounts of EEPROM: 1024 bytes on the ATmega328P, 512 bytes on the ATmega168 and ATmega8, and 4 KB (4096 bytes) on the ATmega1280 and ATmega2560. The Arduino or Genuino 101 boards have an emulated EEPROM space of 1024 bytes.
How many pins does ATmega2560 have?
The Arduino Mega 2560 is a microcontroller of the board based on the ATmega 2560. It has 54 digital input/output pins (of which 15 could be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power supply back, an ICSP header, and a reset button.
