Circuit Documentation

Summary

This document provides a detailed overview of a circuit designed to control multiple DC gearmotors using an ESP32 microcontroller and an L298N motor driver. The circuit is powered by a 12V battery and includes connections to various components to enable motor control.

Component List

1. 12V Battery

   • Description: Provides power to the circuit.
   • Pins: +, -

2. Gearmotor DC Wheels Right

   • Description: DC motor for the right wheel.
   • Pins: PIN1, PIN2

3. Gearmotor DC Wheels Left

   • Description: DC motor for the left wheel.
   • Pins: PIN1, PIN2

4. ESP32 (30 pin)

   • Description: Microcontroller used for controlling the motor driver.
   • Pins: EN, VP, VN, D34, D35, D32, D33, D25, D26, D27, D14, D12, D13, GND, Vin, D23, D22, TX0, RX0, D21, D19, D18, D5, TX2, RX2, D4, D2, D15, 3V3

5. L298N DC Motor Driver

   • Description: Motor driver used to control the 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

Wiring Details

12V Battery

• + is connected to 12V on the L298N DC motor driver.
• - is connected to GND on the L298N DC motor driver and GND on the ESP32.

Gearmotor DC Wheels Right

• PIN1 is connected to OUT2 on the L298N DC motor driver.
• PIN2 is connected to OUT1 on the L298N DC motor driver.

Gearmotor DC Wheels Left

• PIN1 is connected to OUT3 on the L298N DC motor driver.
• PIN2 is connected to OUT4 on the L298N DC motor driver.

ESP32 (30 pin)

• GND is connected to GND on the L298N DC motor driver and - on the 12V Battery.
• Vin is connected to 5V on the L298N DC motor driver.
• D14 is connected to IN1 on the L298N DC motor driver.
• D27 is connected to IN2 on the L298N DC motor driver.
• D26 is connected to IN3 on the L298N DC motor driver.
• D25 is connected to IN4 on the L298N DC motor driver.
• D33 is connected to ENB on the L298N DC motor driver.

L298N DC Motor Driver

• OUT1 is connected to PIN2 on the right Gearmotor DC Wheels and PIN1 on the left Gearmotor DC Wheels.
• OUT2 is connected to PIN1 on the right Gearmotor DC Wheels and PIN2 on the left Gearmotor DC Wheels.
• OUT3 is connected to PIN1 on the left Gearmotor DC Wheels and PIN2 on the right Gearmotor DC Wheels.
• OUT4 is connected to PIN2 on the left Gearmotor DC Wheels and PIN1 on the right Gearmotor DC Wheels.
• 12V is connected to + on the 12V Battery.
• GND is connected to - on the 12V Battery and GND on the ESP32.
• 5V is connected to Vin on the ESP32.
• IN1 is connected to D14 on the ESP32.
• IN2 is connected to D27 on the ESP32.
• IN3 is connected to D26 on the ESP32.
• IN4 is connected to D25 on the ESP32.
• ENB is connected to D33 on the ESP32.

Code

No code is provided for this circuit.