Arduino Atmega 2560 R3 Microcontroller Board

Arduino Atmega 2560 R3 Microcontroller Board

With the MAX3421e IC, the Mega 2560 Atmega2560-16au compatible with Arduino is a microcontroller board based on the Arduino Atmega 2560 R3.

With a total of 54 digital input/output pins (including 15 PWM outputs), 16 analog inputs, and 4 UARTs, the MEGA ADK is jam-packed with features. It also boasts a 16 MHz crystal oscillator and comes equipped with a USB connection, power jack, ICSP header, and reset button. Based on the Arduino Atmega 2560 r3, this board shares many similarities with its counterparts, including the ATmega8U2 program that serves as a USB-to-serial converter. In fact, the Mega ADK revision 3 even includes a resistor that conveniently pulls the 8U2 HWB line to ground for easier DFU(Device Firmware Upgrade) mode access.

New features on the board include:

As part of the 1.0 pin-out, the shields will be able to adjust to the voltage provided by the board by adding SDA and SCL pins near the AREF pin and two new pins near the RESET pin, the IOREF. Shields in the future will be compatible with boards that use AVR, which operate at 5V, and Arduino Due, which operates at 3.3V. The second pin, which is not connected, will be used for future purposes.

Circuit with a stronger RESET.

A USB connection or an external power supply can be used to power the Arduino Atmega 2560 R3 Android Accessory Development Kit (ADK). An AC-to-DC adapter (wall-wart) or battery can be used to supply external (non-USB) power. An adapter can be connected by plugging a 2.1mm center-positive plug into the board’s power jack.

GND and Vin pin headers on the POWER connector can be inserted with battery leads. Since the Mega R3 Android Accessory Development Kit (ADK) is a USB Host, the phone will attempt to draw power from it when it needs to charge. When the ADK is powered over USB, 500mA is available for the phone and board.

Features and specifications:

Arduino Atmega 2560 r3 :

Atmel is the programmer

Microcontroller ATmega2560.

A total of 54 digital input/output terminals (14 of which have programmable PWM outputs) are available.

There are 16 analog inputs.

There are four UARTs (hardware serial ports).

A crystal clock with a frequency of -16 MHz.

A bootloader allows sketches to be downloaded via USB without having to go through an external writer.

-Powered by USB or external power supply (not supplied). The device will automatically switch between power sources.

A heavy gold plate construction is used.

The clock speed is 16 MHZ.

Bootloader uses 8 KB of the 256 KB flash memory.

The operating voltage is 6 x 12 volts.

Mega 2560 Arduino cable:

It is hot pluggable.

-Compatible with PCs.

Strain relief and PVC overmolding ensure error-free data transmissions for a lifetime.

-Aluminum under-mold shield helps meet FCC requirements for KMI/RFI interference.

-Filled and braided shield conforms to fully rated cable specifications and reduces EMI/FRI interference.

Error-free, high-performance transmission.

Case made of transparent acrylic:

MEGA2560 R3 (unassembled) compatible.

It is possible to adjust the cover.

Transparent color.

Acrylic is the material used.

The power of

The external power regulator has a maximum capacity of 1500mA. Of this, 750mA is reserved for the phone and MEGA ADK board, while the remaining 750mA is dedicated to any attached actuators and sensors. To use this amount of current, a power supply must be able to provide at least 1.5A. While the board can run on an external supply ranging from 5.5 to 16 volts, it is recommended to use between 7 and 12 volts. If supplied with less than 7V, there may be insufficient voltage output from the 5V pin, potentially causing instability in the board. On the other hand, using more than 12V may result in overheating of the voltage regulator and potential damage to the board components.

What follows is:

This pin is used to supply voltage to the Arduino board when it is powered by an external power source rather than 5 volts from the USB connection or another regulated source.

This pin generates a regulated 5V from the board’s regulator. The board can be powered via the DC power jack (7-12V), USB connector (5V), or VIN pin (7-12V). If you supply voltage via the 5V or 3.3V pins, you bypass the regulator and can damage your board. Please do not do so.

The onboard regulator generates 3.3 volts. Maximum current draw is 50 milliamps.

The ground pins are GND.

The Arduino board’s IOREF pin serves as a voltage reference for the microcontroller. In a properly configured shield, you can determine the voltage of the IOREF pin and select an appropriate power source or enable voltage translators to work with either 5V or 3.3V outputs.

The memory

It has 256 KB of flash memory for storing code (of which 8 KB is used for the bootloader), 8 KB of SRAM, and 4 KB of EEPROM (which can be read and written).

The inputs and outputs

By using pin Mode(), digital Write(), and digital Read() functions, each of the Arduino Atmega 2560 R3 Android Accessory Development Kit (ADK)’s 50 digital pins can be used as inputs or outputs. There is an internal pull-up resistor of 20-50 Ohm on each pin. They operate at 5 volts. They can provide or receive a maximum current of 40 mA. Some of the pins have specialized functions:

Serial 0: 0 (RX) and 1 (TX), Serial 1: 19 (RX) and 18 (TX), Serial 2: 17 (RX) and 16 (TX), Serial 3: 15 (RX) and 14 (TX). Connected to the ATmega8U2 USB-to-TTL Serial chip on pins 0 and 1.

External Interrupts: 2 (interrupt 0), 3 (interrupt 1), 18 (interrupt 5), 19 (interrupt 4), 20 (interrupt 3), and 21 (interrupt 2). An interrupt can be triggered on a low value, a rising or falling edge, or a change in value using the attach Interrupt() function.

Providing 8-bit PWM output with the analog Write() function for PWM values 2 to 13 and 44 to 46.

SPI: 50 (MISO), 51 (MOSI), 52 (SCK), 53 (SS). These pins support SPI communication using the SPI library. They are also broken out on the ICSP header, which is physically compatible with Uno, Duemilanove, and Diecimila.

MAX3421E is the USB host.

The Max3421E

The following pins are used to communicate with Arduino via the SPI bus:

Seven (RST), fifty (MISO), fifty one (MOSI), and fifty two (SCK) are digital.

You should not use Digital pin 7 for inputs or outputs because it is used to communicate with MAX3421E

PJ3 (GP_MAX), PJ6 (INT_MAX), PH7 (SS) are not broken out on headers.

A built-in LED is connected to digital pin 13. When the pin is HIGH, the LED is on, when it is LOW, it is off.

Supports TWI communication using the Wire library. These pins are not in the same location as the Duemilanove or Diecimila TWI pins.

Android Accessory Development Kit (ADK) with Arduino Atmega 2560 R3 has 16 analog inputs, each with a resolution of 10 bits (i.e. 1024 different values). It is possible to change the upper end of the range of the pins by using the AREF pin and analog Reference() function. Other pins on the board include:

Reference voltage for analog inputs. Use with analog reference.

Reset. This line is typically used to add a reset button to shields which block the board’s reset button.

The communication process