It's also important to note that the onboard voltage regulator IC only regulates the input voltage provided via power jack to 5V and 3.3V which is the required voltage for the board to function.Īrduino Mega 2560 Rev3 Pinout and Peripherals Additionally, the maximum current provided to the board is 1A. If the voltage is too high, it can damage the board. It's important to note that when using an external power supply, the voltage provided to the board should be between 7 and 12V. Power pins: The board can also be powered by the 3.3V or 5V power pins, which are capable of supplying up to 50mA of current but it's not recommended at all as it bypasses the voltage regulator IC on the board.The input voltage range for the VIN pin is 7-12V DC. VIN Pin: The board can also be powered by the VIN pin, which is the input voltage to the board when the board is powered via the power jack or USB.The input voltage range for the power jack is 7-12V DC. External Power Supply: The board can also be powered by an external power supply, such as a battery or a wall adapter, by connecting it to the power jack.USB: The board can be powered via the USB connection, which is convenient for projects that are connected to a computer or laptop.The Arduino Mega 2560 Rev3 can be powered in a variety of ways, depending on the specific requirements of your project. LEDs: The board utilizes several LEDs, including a power LED, a pin 13 LED, and a RX and TX LEDs which indicate when data is being transmitted or received.Power Jack: The board has a 2.1 mm center-positive power jack, which can be used for connecting an external power supply, such as a battery or wall adapter.USB Connector: The board has a USB Type B connector, which can be used for programming the board and for providing power to the board.ICSP Header: The ICSP header is intended for programming the board with an external programmer.
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