Cirkit Designer LogoCirkit DesignerYour all-in-one circuit design IDE Launch Cirkit Designer App

Arduino Mega and NodeMCU Controlled Multi-Motor Driver System

View and Edit Project In Cirkit DesignerImage of Arduino Mega and NodeMCU Controlled Multi-Motor Driver System

Circuit Documentation

Summary

This circuit integrates an Arduino Mega 2560 with a NodeMCU V3 ESP8266 to control multiple DC motors via two L298N DC motor drivers. The Arduino Mega 2560 serves as the primary microcontroller, interfacing with the motor drivers to manage the direction and speed of the motors. The NodeMCU V3 ESP8266 is used for additional control and communication capabilities. The circuit is designed to provide a platform for motor control applications, such as robotics or automated systems.

Component List

Arduino Mega 2560

NodeMCU V3 ESP8266

L298N DC Motor Driver (x2)

DC Motor (x5)

Wiring Details

Arduino Mega 2560

NodeMCU V3 ESP8266

L298N DC Motor Driver 1

L298N DC Motor Driver 2

DC Motors

Documented Code

Arduino Mega 2560 Code

#include <SoftwareSerial.h>

// Define the pins for SoftwareSerial
const int rxPin = D6; // RX pin for SoftwareSerial
const int txPin = D5; // TX pin for SoftwareSerial

SoftwareSerial mySerial(rxPin, txPin); // RX, TX

void setup() {
  Serial.begin(9600); // For debugging
  mySerial.begin(9600); // Baud rate for communication with Arduino Mega

  Serial.println("NodeMCU is ready");
}

void loop() {
  // Send a test command to Arduino Mega
  mySerial.println("TEST_COMMAND");

  // Check if there is any data from Arduino Mega
  if (mySerial.available()) {
    String receivedData = mySerial.readString();
    Serial.print("Received from Arduino Mega: ");
    Serial.println(receivedData);
  }

  delay(5000); // Wait for 5 seconds
}

This code snippet is for the Arduino Mega 2560, which sets up a SoftwareSerial communication link with the NodeMCU V3 ESP8266. It sends a test command to the NodeMCU and prints any received data to the serial monitor for debugging purposes. The communication operates at a baud rate of 9600.