It is essential for the programming of the Arduino Mega board. It allows the board to connect to the computer. The ground pins are used to ground the circuit. It is recommended for complex projects, such as Robotics, etc. It is used for the boards that require more memory, sketch, and I/O lines. Here, AVR stands for Audio Video Recorder and RISC stands for Reduced Instruction Set Computing. The Mega 2560 is based on AVR RISC Architecture. ATmega2560 Microcontroller - The Atmega2560 is a CMOS (Complementary Metal Oxide Semiconductor) low powered 8-bit microcontroller.The description of pins present on the Arduino board are listed below: The Pinout of Arduino Mega is shown below: The advantage of using the Arduino Mega board over other boards is that it gives the advantage of working with more memory space. The schematic diagram above is also helpful when you want to build your own Arduino.The Arduino Mega is based on ATmega2560 Microcontroller. Arduino UNO Rev3 Schematic Diagramįor those who want to dig deeper into understanding the Arduino UNO board, I suggest you look into its schematic diagram: For details on how to use these pins, see Arduino Port Manipulation.
Insert other voltage (0-5V only) to use as reference for analog conversionsĪlso notice that the ATMega pins for each Arduino pin are also provided in the diagram above. This pin is connected to 5V for the UNOĪREFADC Reference Voltage. Pin Name DescriptionĥV5V (Regulated) Sourceģ.3V3.3V Source
Pin Name Description Secondary Function Descriptionĭ0Digital Pin 0RXReceive pin for Serial UARTĭ1Digital Pin 1TXTransmit pin for Serial UARTĭ2Digital Pin 2INT0Interrupt Pin 0ĭ3Digital Pin 3INT1Interrupt Pin 1ĭ4Digital Pin 4ĭ5Digital Pin 5ĭ6Digital Pin 6ĭ7Digital Pin 7ĭ8Digital Pin 8ĭ9Digital Pin 9ĭ10Digital Pin 10SSSPI Slave Select Pinĭ11Digital Pin 11MOSISPI Master Out-Slave Inĭ12Digital Pin 12MISOSPI Master In-Slave Outĭ13Digital Pin 13SCKSPI ClockĪ0Analog Pin 0Ī1Analog Pin 1Ī2Analog Pin 2Ī3Analog Pin 3Ī4Analog Pin 4SDAI2C Data OutĪ5Analog Pin 5SCLI2C Clock Secondary pins are mostly communications pins such as I2C and SPI. There are pins with secondary functions as listed below. The Arduino UNO board is divided into digital pins, analog pins and power pins. This Arduino UNO Pinout diagram reference will hopefully help you get the most out of this board: The Arduino UNO is arguably the most popular Arduino board currently available.
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