#ARDUINO MEGA 2560 PINOUT CHIP NAME HOW TO#
#ARDUINO MEGA 2560 PINOUT CHIP NAME SERIAL#

You don't need to care about MCUCR, unless you want to disable pull-up on all pins. Port B and bit 7.īit 7 in DDR B controls the direction (input/output)īit 7 in PORT B controls the output (high/low) Special functions, Some of the pins have special functions which brief description is available in our guide. You can find which Arduino pin is connected to which ATMega pin in schematic.Įxample: Controlling Arduino pin 13 find the port and bit for Arduino pin 13īy looking at the pinout map above, you will find 'PB7' next to pin 13.Īrduino pin 13 is connected to ATMega2560 pin P B7 on the Arduino circuit board. The Mega2560 has less memory and far less processing power, but interfacing with legacy 5V devices is far easier. It cant easily interface with 5V devices though. It has more flexible and more powerful built-in peripherals. It has more memory and far more processing power. The pinout map above is derived from the schematic. The Due can do a lot of things much faster. The Arduino Mega 2560 is a replacement of the old Arduino Mega, and so in. It supports ICSP as well as USB microcontroller programming with PC. Brownout and watchdog help to make the system more reliable and robust. Look at the schematic for Arduino Mega and the ATMega2560 Datasheet It is also compatible with the different type of boards like high-level signal (5V) or low-level signal (3.3V) with I/O ref pin. The tan box in the pinout map below shows the pin name assigned by Atmel (who makes the chip). To toggle a given Arduino pin, you will need the x (port) and n (bit) to locate the registers and bits. “x” represents the numbering letter for the port, and “n” represents the bit number.įinding the registers for a given Arduino pin PUD in MCUCR disables all pull-up resistors if it is set to 1. PORTxn bit in PORTx register controls the output (high/low digitalWrite()) Three bits in three registers control the state of a GPIO pin:ĭDxn bit in DDRx register controls the direction (input/output pinMode())

#ARDUINO MEGA 2560 PINOUT CHIP NAME SERIAL#

It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a. The Arduino Mega 2560 is a microcontroller board based on the ATmega2560. There are pin mappings to Atmega8 and Atmega 168/328 as well.

#ARDUINO MEGA 2560 PINOUT CHIP NAME HOW TO#

The I/O section from the ATMega2560 datasheet (linked below) explains how to configure and toggle a GPIO (General Purpose Input/Output) pin. The 8-bit board with 54 digital pins, 16 analog inputs, and 4 serial ports. Below is the pin mapping for the Atmega2560. 4 pinMode() and digitalWrite() under the hood.

3.3 set the Arduino pin 13 as input (equivalent to pinMode(13,INPUT)).

3.2 set the Arduino pin 13 as output (equivalent to pinMode(13,OUTPUT)).

3.1 find the port and bit for Arduino pin 13.

0 pinout: added SDA and SCL pins that are near to the AREF pin Stronger RESET circuit.

2 Finding the registers for a given Arduino pin The Mega is 100 compatible with Arduino IDE and most of the shields are designed for the Arduino mega2560 R3RoHS Compliant The chip is Atmega2560-16au and Atmega16u2, the same as the official version.

Arduino mega 2560 pinout chip name