Circuit Documentation

Summary

This circuit is designed to control two DC motors and two servos using an Arduino UNO as the central microcontroller. A 12v battery provides power to the system, with a L298N DC motor driver interfacing between the Arduino and the motors. A KY-023 Dual Axis Joystick Module is used for user input to control the motors and servos. The servos are powered by the 5V output from the Arduino, and the motors are powered by the 12V from the battery through the motor driver.

Component List

Arduino UNO

• Microcontroller board based on the ATmega328P
• Provides I/O pins and power outputs for the circuit

12v Battery

• Power source for the motors and the Arduino UNO (through Vin)

L298N DC Motor Driver

• Interfaces between the Arduino and the motors
• Controls the direction and speed of the motors

DC Motor (x2)

• Converts electrical energy into mechanical motion

KY-023 Dual Axis Joystick Module

• Provides analog input to control the motors and servos

Tower Pro SG90 Servo (x2)

• Small and lightweight servo motor
• Used for precise control of mechanical movement

Wiring Details

Arduino UNO

• 5V connected to servos, motor driver, and joystick module for power
• GND connected to the negative terminal of the battery, servos, motor driver, and joystick module for common ground
• Vin connected to the positive terminal of the 12v battery for power input
• A4 connected to the VRx pin of the joystick module
• A5 connected to the VRy pin of the joystick module
• D11 connected to ENA and ENB pins of the motor driver for enabling motor control
• D9 connected to IN1 and IN3 pins of the motor driver for motor direction control
• D8 connected to IN2 and IN4 pins of the motor driver for motor direction control
• D7 connected to the Signal pin of one servo
• D6 connected to the Signal pin of the other servo
• D2 connected to the SW pin of the joystick module

12v Battery

• + connected to the 12V pin of the motor driver and Vin of the Arduino
• - connected to the GND pin of the motor driver and common ground

L298N DC Motor Driver

• 5V connected to the 5V output of the Arduino for logic power
• GND connected to common ground
• 12V connected to the positive terminal of the battery for motor power
• ENA and ENB connected to D11 on the Arduino for motor enable
• IN1 and IN3 connected to D9 on the Arduino for motor direction
• IN2 and IN4 connected to D8 on the Arduino for motor direction
• OUT1 and OUT2 connected to one DC motor
• OUT3 and OUT4 connected to the other DC motor

DC Motors

• One motor connected to OUT1 and OUT2 of the motor driver
• The other motor connected to OUT3 and OUT4 of the motor driver

KY-023 Dual Axis Joystick Module

• GND connected to common ground
• +5V connected to the 5V output of the Arduino
• VRx connected to A4 on the Arduino
• VRy connected to A5 on the Arduino
• SW connected to D2 on the Arduino

Tower Pro SG90 Servos

• Signal of one servo connected to D7 on the Arduino
• Signal of the other servo connected to D6 on the Arduino
• +5V and GND connected to the 5V output and common ground of the Arduino, respectively

Documented Code

Arduino UNO - sketch.ino

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Arduino UNO - documentation.txt

(No additional documentation provided for the code)

This concludes the documentation for the given circuit. The code provided is a template and needs to be filled in with the logic for reading the joystick inputs, controlling the motor driver, and operating the servos based on the joystick's position.