![]() ![]() This comes with the most number of digital I/O pins incorporated on any Arduino board. The SDL is the serial data pin that carries the data while SCL is the serial clock line that ensures the synchronization of data transfer over I2C bus. The board carries one I2C communication protocol. It contains two Pins… MISO (master input slave output) and MOSI (master output slave input) for the SPI communication. It is used to develop communication between the controller and other peripheral devices like sensors and shift registers. While is a serial peripheral interface communication protocol. The board contains one SPI communication protocol. The Rx is the receiving pin that ensures the receiving of serial data while Tx is the transmission pin that guarantees the transmission of serial data. Each UART serial port comes with two pins Rx and Tx. There are 4 serial ports incorporated on the board. In this section, we’ll highlight the pin description of each pin incorporated on the board. Hope you’ve got a brief idea about this Arduino Mega board. ![]() While two LEDs are reserved for Rx and Tx which respond when the serial communication happens on this board. One is a power LED that turns on when the board is turned on. The board incorporates 4 LEDs where one is a built-in LED connected to pin 13 of the board. In the following picture, you’ll see the pinout diagram of Arduino Mega 2560 Rev3. It comes with everything required to support the microcontroller.
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