Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed to control two 12V geared motors using an ESP32 microcontroller and an L298N DC motor driver. The circuit is powered by a 12V 5Ah battery and includes a rocker switch for power control.

Component List

1. ESP32

   • Description: A powerful microcontroller with Wi-Fi and Bluetooth capabilities.
   • Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, VIN, 3V3, D15, D2, D4, RX2, TX2, D5, D18, D19, D21, RX0, TX0, D22, D23, BOOT

2. L298N DC Motor Driver

   • Description: A dual H-Bridge motor driver that allows control of two DC motors.
   • 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

3. 12V Geared Motor (Motor 1)

   • Description: A 12V DC motor with a gearbox for increased torque.
   • Pins: Terminal 1, Terminal 2

4. 12V Geared Motor (Motor 2)

   • Description: A 12V DC motor with a gearbox for increased torque.
   • Pins: Terminal 1, Terminal 2

5. 12V 5Ah Battery

   • Description: A rechargeable battery providing 12V power.
   • Pins: 12v +, 12v -

6. Rocker Switch (SPST)

   • Description: A single-pole single-throw switch for power control.
   • Pins: 1, 2

Wiring Details

ESP32

• D25 is connected to IN1 of the L298N DC motor driver.
• D26 is connected to IN2 of the L298N DC motor driver.
• D27 is connected to IN3 of the L298N DC motor driver.
• D14 is connected to IN4 of the L298N DC motor driver.

L298N DC Motor Driver

• IN1 is connected to D25 of the ESP32.
• IN2 is connected to D26 of the ESP32.
• IN3 is connected to D27 of the ESP32.
• IN4 is connected to D14 of the ESP32.
• OUT1 is connected to Terminal 1 of Motor 2.
• OUT2 is connected to Terminal 2 of Motor 2.
• OUT3 is connected to Terminal 2 of Motor 1.
• OUT4 is connected to Terminal 1 of Motor 1.
• 12V is connected to pin 1 of the Rocker Switch.
• GND is connected to 12v - of the 12V 5Ah Battery.

12V Geared Motor (Motor 1)

• Terminal 1 is connected to OUT4 of the L298N DC motor driver.
• Terminal 2 is connected to OUT3 of the L298N DC motor driver.

12V Geared Motor (Motor 2)

• Terminal 1 is connected to OUT1 of the L298N DC motor driver.
• Terminal 2 is connected to OUT2 of the L298N DC motor driver.

12V 5Ah Battery

• 12v + is connected to pin 2 of the Rocker Switch.
• 12v - is connected to GND of the L298N DC motor driver.

Rocker Switch (SPST)

• Pin 1 is connected to 12V of the L298N DC motor driver.
• Pin 2 is connected to 12v + of the 12V 5Ah Battery.

Code

No code is provided for this circuit.