/

/

Component Documentation

How to Use Mega 2560 R3: Examples, Pinouts, and Specs

Image of Mega 2560 R3

Design with Mega 2560 R3 in Cirkit Designer

Introduction

The Keyestudio Mega 2560 R3 (part ID: KS0002) is a versatile microcontroller board based on the ATmega2560 chip. It is designed to support complex projects with its extensive array of digital and analog I/O pins, multiple UARTs for serial communication, and ample memory. This board is an excellent choice for applications such as robotics, home automation systems, and large-scale LED installations.

Explore Projects Built with Mega 2560 R3

Multi-Functional Robotic Control System with Sensor Integration and Display Interface

Image of GP2: A project utilizing Mega 2560 R3 in a practical application

This circuit includes an Arduino Mega 2560 and an Arduino UNO microcontroller, both of which are connected to various sensors, actuators, and a power supply. The Mega 2560 controls stepper motors via drivers, servos, and an LED light strip, while the UNO interfaces with ultrasonic sensors, a motion sensor, and a load cell through an HX711 interface. Additionally, a Raspberry Pi 5 is connected to an LCD and peripherals, and a logic level converter is used for voltage level translation between devices.

Open Project in Cirkit Designer

Arduino Mega 2560-Based RFID and Stepper Motor Control System with I2C LCD Display

Image of aaa: A project utilizing Mega 2560 R3 in a practical application

This circuit features an Arduino Mega 2560 microcontroller interfacing with multiple components including four 28BYJ-48 stepper motors controlled via ULN 2003 drivers, a 16x2 I2C LCD for display, an RFID-RC522 module for RFID reading, and a 4x4 membrane matrix keypad for user input. The setup is designed for applications requiring motor control, user interaction, and RFID-based identification.

Open Project in Cirkit Designer

Arduino Mega 2560-Based Robotic Hand with OLED Display and Joystick Control

Image of PROTO ARM: A project utilizing Mega 2560 R3 in a practical application

This circuit features an Arduino Mega 2560 microcontroller interfaced with various sensors and actuators, including a DHT11 temperature and humidity sensor, a 0.96" OLED display, a dual-axis joystick, and multiple MG90S servos controlled via a 16-channel PWM driver. The circuit is powered by a combination of 9V and LiPo batteries, with a DC buck converter providing regulated power to the components.

Open Project in Cirkit Designer

Arduino Mega 2560 Controlled Lighting and Display System with Rotary Encoder and Dual Servos

Image of inseg: A project utilizing Mega 2560 R3 in a practical application

This circuit features an Arduino Mega 2560 microcontroller as its central processing unit, interfacing with a variety of peripherals. It includes a BH1750 light sensor and an OLED display connected via I2C for light intensity measurement and data display, respectively. Additionally, two SG92R servomotors are controlled by PWM signals for actuation, a rotary encoder is used for user input, and an LED is provided for visual output or status indication.

Open Project in Cirkit Designer

Explore Projects Built with Mega 2560 R3

Image of GP2: A project utilizing Mega 2560 R3 in a practical application

Multi-Functional Robotic Control System with Sensor Integration and Display Interface

This circuit includes an Arduino Mega 2560 and an Arduino UNO microcontroller, both of which are connected to various sensors, actuators, and a power supply. The Mega 2560 controls stepper motors via drivers, servos, and an LED light strip, while the UNO interfaces with ultrasonic sensors, a motion sensor, and a load cell through an HX711 interface. Additionally, a Raspberry Pi 5 is connected to an LCD and peripherals, and a logic level converter is used for voltage level translation between devices.

Open Project in Cirkit Designer

Image of aaa: A project utilizing Mega 2560 R3 in a practical application

Arduino Mega 2560-Based RFID and Stepper Motor Control System with I2C LCD Display

This circuit features an Arduino Mega 2560 microcontroller interfacing with multiple components including four 28BYJ-48 stepper motors controlled via ULN 2003 drivers, a 16x2 I2C LCD for display, an RFID-RC522 module for RFID reading, and a 4x4 membrane matrix keypad for user input. The setup is designed for applications requiring motor control, user interaction, and RFID-based identification.

Open Project in Cirkit Designer

Image of PROTO ARM: A project utilizing Mega 2560 R3 in a practical application

Arduino Mega 2560-Based Robotic Hand with OLED Display and Joystick Control

This circuit features an Arduino Mega 2560 microcontroller interfaced with various sensors and actuators, including a DHT11 temperature and humidity sensor, a 0.96" OLED display, a dual-axis joystick, and multiple MG90S servos controlled via a 16-channel PWM driver. The circuit is powered by a combination of 9V and LiPo batteries, with a DC buck converter providing regulated power to the components.

Open Project in Cirkit Designer

Image of inseg: A project utilizing Mega 2560 R3 in a practical application

Arduino Mega 2560 Controlled Lighting and Display System with Rotary Encoder and Dual Servos

This circuit features an Arduino Mega 2560 microcontroller as its central processing unit, interfacing with a variety of peripherals. It includes a BH1750 light sensor and an OLED display connected via I2C for light intensity measurement and data display, respectively. Additionally, two SG92R servomotors are controlled by PWM signals for actuation, a rotary encoder is used for user input, and an LED is provided for visual output or status indication.

Open Project in Cirkit Designer

Technical Specifications

General Features

Microcontroller: ATmega2560
Operating Voltage: 5V
Input Voltage (recommended): 7-12V
Input Voltage (limits): 6-20V
Digital I/O Pins: 54 (15 provide PWM output)
Analog Input Pins: 16
DC Current per I/O Pin: 20 mA
DC Current for 3.3V Pin: 50 mA
Flash Memory: 256 KB of which 8 KB used by bootloader
SRAM: 8 KB
EEPROM: 4 KB
Clock Speed: 16 MHz
LED_BUILTIN: Pin 13

Pin Configuration

Pin Number	Function	Description
1-54	Digital I/O	Digital input/output pins
1-15	PWM Output	PWM output capable pins
A0-A15	Analog Input	Analog input pins
0, 1	Serial 0 (RX, TX)	UART 0 (Rx0, Tx0) pins for serial communication
19, 18	Serial 1 (RX, TX)	UART 1 (Rx1, Tx1) pins for serial communication
17, 16	Serial 2 (RX, TX)	UART 2 (Rx2, Tx2) pins for serial communication
15, 14	Serial 3 (RX, TX)	UART 3 (Rx3, Tx3) pins for serial communication
-	ICSP Header	In-Circuit Serial Programming header
-	Reset Button	Resets the microcontroller

Usage Instructions

Setting Up the Board

Connect the Mega 2560 R3 to your computer using a USB cable.
Ensure that the board is selected in your IDE (e.g., Arduino IDE) under the "Tools" > "Board" menu.
Select the correct serial port under "Tools" > "Port".

Writing a Basic Sketch

Here is a simple example of how to blink the built-in LED on the Mega 2560 R3:

// Define the LED_BUILTIN pin as an output.
void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
}

// Turn the LED on and off in a loop.
void loop() {
  digitalWrite(LED_BUILTIN, HIGH);   // Turn the LED on
  delay(1000);                       // Wait for a second
  digitalWrite(LED_BUILTIN, LOW);    // Turn the LED off
  delay(1000);                       // Wait for a second
}

Best Practices

Always disconnect the board from power sources before making or altering connections.
Use a current-limiting resistor when connecting LEDs to output pins.
Avoid supplying voltage to any I/O pin exceeding the operating voltage (5V) to prevent damage.

Troubleshooting and FAQs

Common Issues

Board not recognized: Ensure the USB cable is properly connected and the correct drivers are installed.
Sketch upload fails: Check the selected board and port in your IDE. Press the reset button on the board and try again.
Unexpected behavior in circuits: Verify connections and ensure that power supply voltages are within the specified limits.

FAQs

Q: Can I power the Mega 2560 R3 with more than 12V? A: While the board can accept an input voltage up to 20V, it is recommended to use between 7-12V to prevent overheating and potential damage.

Q: How many devices can I connect to the serial ports? A: You can connect one device per UART, giving you the ability to have four separate serial devices connected.

Q: What is the purpose of the ICSP header? A: The ICSP (In-Circuit Serial Programming) header is used for programming the microcontroller with an external programmer.

For further assistance, consult the Keyestudio community forums or contact technical support.