### Microcontroller (ATmega2560)
8-bit AVR microcontroller with 256KB flash memory and 8KB SRAM
16MHz quartz crystal oscillator
54 digital input/output pins (of which 15 can be used as PWM outputs)
16 analog input pins
### Microcontroller (ATmega2560)
8-bit AVR microcontroller with 256KB flash memory and 8KB SRAM
16MHz quartz crystal oscillator
54 digital input/output pins (of which 15 can be used as PWM outputs)
16 analog input pins
UART, I2C, and SPI
5V
7-12V
### ESP8266 Node MCU (WiFi Module)
Built-in 802.11 b/g/n WiFi module
Supports Wi-Fi Direct (P2P), Soft-AP, and Station modes
Up to 16MB of flash memory for storing WiFi firmware and user data
Integrated low-power 32-bit MCU (Tensilica L106) for WiFi processing
Supports TCP/IP, DHCP, DNS, and SSL/TLS protocols
### CH340G USB-to-Serial Chip
Converts USB signals to serial communication protocols (UART, SPI, I2C)
Supports baud rates up to 2Mbps
Compatible with Windows, macOS, and Linux operating systems
### Additional Features
USB connector for programming and communication
Power jack for external power supply (7-12V)
Reset button for resetting the microcontroller
ICSP (In-Circuit Serial Programming) header for programming the ATmega2560
LED indicators for power, WiFi, and serial communication
### Operating Modes
uses the ATmega2560 as the primary microcontroller, with the ESP8266 Node MCU as a WiFi shield
| ESP8266 mode | uses the ESP8266 Node MCU as the primary microcontroller, with the ATmega2560 as a peripheral device |
### Applications
IoT projects requiring WiFi connectivity and microcontroller functionality
Robotics and automation systems
Wireless sensor networks
Home automation and smart home systems
Wearable devices and IoT-enabled accessories
Certifications and Compliance
CE and FCC certified
RoHS compliant
Operating System
Compatible with Arduino IDE, ESP8266 SDK, and other development environments
Dimensions
10.1 cm (4 inches)
5.3 cm (2.1 inches)
1.7 cm (0.67 inches)
Weight
Approximately 50 grams (1.76 oz)
This Arduino Mega 2560+WiFi R3 ATmega2560+Node MCU ESP8266 CH340G Compatible Board offers a powerful and versatile platform for IoT development, providing a range of features and capabilities for building innovative projects.
Arduino Mega 2560+WiFi R3 ATmega2560+Node MCU ESP8266 CH340G Compatible Board DocumentationOverviewThe Arduino Mega 2560+WiFi R3 ATmega2560+Node MCU ESP8266 CH340G Compatible Board is a microcontroller board that combines the functionality of the Arduino Mega 2560 and the Node MCU ESP8266. This board features the ATmega2560 microcontroller, Wi-Fi capabilities through the ESP8266 module, and a CH340G USB-to-serial converter. It provides a powerful and flexible platform for IoT projects, robotics, and automation.SpecificationsMicrocontroller: ATmega2560
Wi-Fi Module: ESP8266
USB-to-serial converter: CH340G
Operating Voltage: 5V
Input Voltage: 7V-12V
Digital I/O Pins: 54
Analog Input Pins: 16
Flash Memory: 256 KB
SRAM: 8 KB
EEPROM: 4 KBProgrammingThe board can be programmed using the Arduino Integrated Development Environment (IDE) version 1.8.x or later. The ESP8266 module can be programmed using the ArduinoWiFi library.Code Examples### Example 1: Wi-Fi Connectivity and LED ControlThis example demonstrates how to connect to a Wi-Fi network and control an LED using the ESP8266 module.
```c
#include <WiFi.h>const char ssid = "your_wifi_ssid"; // Replace with your Wi-Fi SSID
const char password = "your_wifi_password"; // Replace with your Wi-Fi passwordWiFiServer server(80);void setup() {
Serial.begin(115200);
pinMode(LED_BUILTIN, OUTPUT);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
server.begin();
}void loop() {
WiFiClient client = server.available();
if (client) {
Serial.println("Client connected");
String request = client.readStringUntil('
');
if (request.indexOf("led=on") != -1) {
digitalWrite(LED_BUILTIN, HIGH);
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println();
client.println("<html><body><h1>LED is ON</h1></body></html>");
} else if (request.indexOf("led=off") != -1) {
digitalWrite(LED_BUILTIN, LOW);
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println();
client.println("<html><body><h1>LED is OFF</h1></body></html>");
}
client.stop();
}
}
```
### Example 2: Reading Analog Input and Sending Data to a ServerThis example demonstrates how to read an analog input from a sensor and send the data to a remote server using the ESP8266 module.
```c
#include <WiFi.h>
#include <WiFiClient.h>const char ssid = "your_wifi_ssid"; // Replace with your Wi-Fi SSID
const char password = "your_wifi_password"; // Replace with your Wi-Fi password
const char serverUrl = "http://your_server_url.com/data"; // Replace with your server URLWiFiClient client;void setup() {
Serial.begin(115200);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.println("Connecting to WiFi...");
}
Serial.println("Connected to WiFi");
}void loop() {
int sensorValue = analogRead(A0);
String data = "sensorValue=" + String(sensorValue);
client.setServer(serverUrl, 80);
client.println("POST " + String(serverUrl) + " HTTP/1.1");
client.println("Host: " + String(serverUrl));
client.println("Content-Type: application/x-www-form-urlencoded");
client.println("Content-Length: " + String(data.length()));
client.println();
client.println(data);
client.stop();
delay(1000);
}
```
### Example 3: Robotics Control using Motor ShieldThis example demonstrates how to control a motor using the Arduino Mega 2560 and a motor shield.
```c
#include <Arduino.h>
#include <AFMotor.h>AF_DCMotor motor(1, MOTOR12_64KHZ); // Replace with your motor shield pin connectionsvoid setup() {
Serial.begin(115200);
motor.setSpeed(150); // Set motor speed
}void loop() {
motor.run(FORWARD); // Run motor forward
delay(2000);
motor.run(BACKWARD); // Run motor backward
delay(2000);
motor.run(RELEASE); // Release motor
delay(1000);
}
```
These examples demonstrate the board's capabilities in various contexts, including Wi-Fi connectivity, analog input, and motor control. The Arduino Mega 2560+WiFi R3 ATmega2560+Node MCU ESP8266 CH340G Compatible Board is a versatile platform for IoT projects, robotics, and automation applications.