Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, motors, a motor driver, a Bluetooth module, a battery mount, and a rocker switch. The circuit is designed to control motors via Bluetooth communication and is powered by a 4 x AAA battery pack.

Component List

1. Arduino UNO

   • Description: A microcontroller board based on the ATmega328P.
   • Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0

2. Motor amarillo motorreductor hobby

   • Description: A small DC motor with a gearbox.
   • Pins: vcc, GND

3. Motor and wheels

   • Description: A motor with attached wheels for movement.
   • Pins: vcc, GND

4. Rocker switch

   • Description: A switch to control the power supply.
   • Pins: output, input

5. L298N DC motor driver

   • Description: A dual H-Bridge motor driver.
   • Pins: OUT1, OUT2, 12V, GND, 5V, OUT3, OUT4, 5V-ENA-JMP-I, 5V-ENA-JMP-O, +5V-J1, +5V-J2, ENA, IN1, IN2, IN3, IN4, ENB

6. HC-05 Bluetooth Module

   • Description: A Bluetooth module for wireless communication.
   • Pins: Key, VCC, TXD, RXD, State, GND

7. 4 x AAA Battery Mount

   • Description: A battery holder for four AAA batteries.
   • Pins: -, +

Wiring Details

Arduino UNO

• 3.3V connected to VCC of HC-05 Bluetooth Module
• 5V connected to 5V of L298N DC motor driver
• GND connected to - of 4 x AAA Battery Mount, GND of L298N DC motor driver, and GND of HC-05 Bluetooth Module
• D1 connected to RXD of HC-05 Bluetooth Module
• D0 connected to TXD of HC-05 Bluetooth Module

Motor amarillo motorreductor hobby

• vcc connected to vcc of motor and wheels and OUT1 of L298N DC motor driver
• GND connected to GND of motor and wheels and OUT2 of L298N DC motor driver

Motor and wheels

• vcc connected to vcc of Motor amarillo motorreductor hobby and OUT1 of L298N DC motor driver
• GND connected to GND of Motor amarillo motorreductor hobby and OUT2 of L298N DC motor driver

Rocker switch

• output connected to 12V of L298N DC motor driver
• input connected to + of 4 x AAA Battery Mount

L298N DC motor driver

• 5V connected to 5V of Arduino UNO
• GND connected to GND of Arduino UNO and - of 4 x AAA Battery Mount
• OUT1 connected to vcc of Motor amarillo motorreductor hobby and motor and wheels
• OUT2 connected to GND of Motor amarillo motorreductor hobby and motor and wheels
• OUT3 connected to GND of Motor amarillo motorreductor hobby and motor and wheels
• OUT4 connected to vcc of Motor amarillo motorreductor hobby and motor and wheels
• 12V connected to output of Rocker switch

HC-05 Bluetooth Module

• VCC connected to 3.3V of Arduino UNO
• GND connected to GND of Arduino UNO
• RXD connected to D1 of Arduino UNO
• TXD connected to D0 of Arduino UNO

4 x AAA Battery Mount

• - connected to GND of Arduino UNO and L298N DC motor driver
• + connected to input of Rocker switch

Documented Code

Arduino UNO Code (sketch.ino)

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

}

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

}

Additional Documentation (documentation.txt)

This document provides a comprehensive overview of the circuit, including a summary, component list, wiring details, and documented code.