Arduino mega 2560 pin mapping serial#
Arduino mega 2560 pin mapping full#
Arduino mega 2560 pin mapping software#

It is popularly used by the microcontrollers to communicate with one or more peripheral devices quickly.

Arduino mega 2560 pin mapping serial#

It stands for Serial Peripheral Interface. The digital pins have the value either HIGH or LOW. The 15 pins from the digital I/O are PWM (Pulse Width Modulation) pins numbered from D2 - D13 and D44 - D46.

There are 54 digital Input/Output pins from pin numbered from 0 to 53. It can also act as GPIO (General Purpose Input Output) pins. The function of Analog pins is to read the analog sensor used in the connection. There are total of 16 Analog pins from A0 - A15. The SCL is a clock line, while SDA is a data line. The I2C is a serial communication protocol that uses SCL (Serial Clock) and SDA (Serial Data) to receive and send data between two devices. It is the two-wire serial communication protocol. The structure of the ICSP header is shown below: The program or firmware with the advanced functionalities is received by microcontroller with the help of the ICSP (In-Circuit Serial Programming) header. The adapter is plugged-in to the power jack of the Arduino Mega board. The power jack is used to supply the power to the board. It permits the Arduino to communicate with serial devices. It stands for Universal Asynchronous Receiver and Transmitter. We usually plug the USB cable in the USB port to load the sketch to the board. 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.

Arduino mega 2560 pin mapping software#

Now, to my surprise, when looking into the pin controls from existing software for the ramps 1.4 board,Įither info from RAMPS 1.4 - RepRap, or from the 'Sprinter' firmware ( GitHub - kliment/Sprinter: Firmware for RepRap printers and similar devices) and exploring the pin config corresponding to ramps 1.The Arduino Mega is based on ATmega2560 Microcontroller. It is indicated for the Mega connections:Īnd indeed on the drv8825, following the 'DIR' pin from the drv8825, I can follow by eye on the ramps board (DIR-X connection, and measure with an ohmmeter) that it is hooked to the Analog pin 1 (A1) from the arduino mega, when the ramps board is fitted onto the arduino mega. On the wiring diagram of the ramps1.4, ( ) All I need for a simple debugging is to control the STEP, and DIRECTION on the drv8825 (and not caring for now with any sub-stepping).

Arduino mega 2560 pin mapping full#

I do not want to use a full RepRap software on the Mega, but plan to simply adapt the pin specifications for the DRV8825 controls, to the hardware above. My present goal is to operate a single axis stepper motor control with acceleration (AccelStepper ), using an arduino Mega and a ramps 1.4 board fitted with a single drv8825 sub-board (sub-board fitted at the location for the ' X-motor' on the Ramps board).