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The Arduino Mega is a microcontroller board that builds upon the features of the Arduino Uno, providing additional digital and analog I/O pins, more Flash memory, and other enhancements. Here are the key features of the Arduino Mega:
Microcontroller: The Arduino Mega uses the ATmega2560 microcontroller.
Clock Speed: The microcontroller typically runs at 16 MHz.
Digital I/O Pins: It has a total of 54 digital input/output pins, where 15 can be configured as PWM outputs.
Analog Input Pins: There are 16 analog input pins.
UART, I2C, and SPI Communication: Like the Arduino Uno, the Mega supports serial communication (UART), I2C, and SPI protocols.
Flash Memory: The ATmega2560 microcontroller has 256 KB of Flash memory for storing the user's program.
SRAM: It has 8 KB of SRAM for runtime data storage.
EEPROM: There is 4 KB of EEPROM available for non-volatile data storage.
Power Supply: The board can be powered through a USB connection or an external power supply. The recommended input voltage range is 7-12V.
Current per I/O Pin: The pins can source or sink a maximum of 40 mA.
Reset Button: There is a reset button for restarting the microcontroller.
LEDs: The board includes a built-in LED on pin 13, similar to the Arduino Uno.
Form Factor: The Arduino Mega has a larger form factor compared to the Uno, providing more space for additional pins and components.
Multiple Communication Ports: It has multiple hardware UART, I2C, and SPI ports, allowing for concurrent communication with multiple devices.
External Interrupts: The Mega supports external interrupts on a larger number of pins compared to the Uno.
USB-to-Serial Converter: It includes a secondary ATmega16U2 microcontroller for USB-to-serial communication.
Additional ICSP Header: The Mega has a separate ICSP (In-Circuit Serial Programming) header for advanced programming and debugging.
Compatibility: The Arduino Mega is compatible with most shields designed for the Arduino Uno.
The Arduino Mega is suitable for projects that require a larger number of I/O pins, more Flash memory, and increased computational power compared to the Arduino Uno. As always, check the official Arduino documentation for the most up-to-date and detailed information.
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