This Arduino board includes a LED and that is allied to pin-13 which is named as digital pin 13. Providing LOW value, rising or falling edge or changing the value to the interrupt pins. These pins produce interrupts by a number of ways i.e. The external interrupts can be formed by using 6-pins like interrupt 0(0), interrupt 1(3), interrupt 2(21), interrupt 3(20), interrupt 4(19), interrupt 5(18). For serial 0, it includes Tx (1) and Rx (0), for serial 1, it includes Tx(18) & Rx(19), for serial 2 it includes Tx(16) & Rx(17), and finally for serial 3, it includes Tx(14) & Rx(15). The serial pins of this board have four combinations. Tx indicates the transmission of information whereas the RX indicates receive data. The serial pins of this board like TXD and RXD are used to transmit & receive the serial data. However, the output voltage through this pin to the board will be automatically set up to 5V. The voltage provided by the power jack can be accessed through this pin. The range of supplied input voltage to the board ranges from 7volts to 20volts. The Arduino mega board includes 5-GND pins where one of these pins can be used whenever the project requires. The max power can be drawn by this is 50mA. It can be attained from Vin-pin of the board or one more regulated voltage supply-5V otherwise USB cable, whereas another voltage regulation can be offered by 3.3V0-pin. This RPS (regulated power supply) provides the power to the microcontroller as well as other components which are used over the Arduino mega board. These pins are used for providing o/p regulated voltage approximately 5V. When we compare with other types of Arduino boards, these boards are physically superior. These boards offer flexible work memory space is the more & processing power that permits to work with different types of sensors without delay. By using this board, the Arduino mega projected can be designed. All analog pins of this board can be used as digital I/O pins. Every pin of this board comes by a particular function which is allied with it. The pin configuration of this Arduino mega 2560 board is shown below.
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