Circuit Documentation

Summary

This circuit involves an ESP32 microcontroller interfacing with various components including a DC motor, a servo motor, an ultrasonic sensor, and an L298N motor driver. The ESP32 controls the motors and reads data from the ultrasonic sensor. Power is supplied by a 12V battery.

Component List

1. ESP32 38 PINS

   • Description: A versatile microcontroller with Wi-Fi and Bluetooth capabilities.
   • Pins: GND, 23, 22/SCL, 1, 2, 21/SDA, 19, 18, 5, 17/TX2, 16/RX2, 4, 0, 15, D1, D0, CLK, 3V3, EN, VP, VN, 34, 35, 32, 33, 25, 26, 27, 14, 12, 13, D2, D3, 11, 5V/VIN

2. DC Motor

   • Description: A simple DC motor.
   • Pins: pin 1, pin 2

3. DC Motor

   • Description: A simple DC motor.
   • Pins: pin 1, pin 2

4. Servo

   • Description: A servo motor for precise control of angular position.
   • Pins: GND, VCC, PWM

5. Ultrasonic Sensor

   • Description: A sensor for measuring distance using ultrasonic waves.
   • Pins: +VCC, Trigger, Echo, GND

6. L298N DC Motor Driver

   • Description: A dual H-bridge motor driver for controlling 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

7. Battery 12V

   • Description: A 12V battery for powering the circuit.
   • Pins: +, -

Wiring Details

ESP32 38 PINS

• 3V3 is connected to:

  • VCC of the Servo
  • +VCC of the Ultrasonic Sensor

• 35 is connected to:

  • Echo of the Ultrasonic Sensor

• 32 is connected to:

  • Trigger of the Ultrasonic Sensor

• 33 is connected to:

  • IN4 of the L298N DC Motor Driver

• 25 is connected to:

  • IN3 of the L298N DC Motor Driver

• 26 is connected to:

  • IN2 of the L298N DC Motor Driver

• 27 is connected to:

  • IN1 of the L298N DC Motor Driver

• 14 is connected to:

  • ENA of the L298N DC Motor Driver

• 12 is connected to:

  • ENB of the L298N DC Motor Driver

• GND is connected to:

  • GND of the Servo
  • GND of the Ultrasonic Sensor
  • GND of the L298N DC Motor Driver
  • • of the Battery 12V

• 13 is connected to:

  • PWM of the Servo

• 5V/VIN is connected to:

  • 5V of the L298N DC Motor Driver

DC Motor 1

• pin 1 is connected to:

  • OUT1 of the L298N DC Motor Driver

• pin 2 is connected to:

  • OUT2 of the L298N DC Motor Driver

DC Motor 2

• pin 1 is connected to:

  • OUT4 of the L298N DC Motor Driver

• pin 2 is connected to:

  • OUT3 of the L298N DC Motor Driver

Servo

• VCC is connected to:

  • 3V3 of the ESP32

• GND is connected to:

  • GND of the ESP32
  • GND of the Battery 12V

• PWM is connected to:

  • 13 of the ESP32

Ultrasonic Sensor

• +VCC is connected to:

  • 3V3 of the ESP32

• Trigger is connected to:

  • 32 of the ESP32

• Echo is connected to:

  • 35 of the ESP32

• GND is connected to:

  • GND of the ESP32
  • GND of the Battery 12V

L298N DC Motor Driver

• IN1 is connected to:

  • 27 of the ESP32

• IN2 is connected to:

  • 26 of the ESP32

• IN3 is connected to:

  • 25 of the ESP32

• IN4 is connected to:

  • 33 of the ESP32

• ENA is connected to:

  • 14 of the ESP32

• ENB is connected to:

  • 12 of the ESP32

• 5V is connected to:

  • 5V/VIN of the ESP32

• GND is connected to:

  • GND of the ESP32
  • GND of the Battery 12V

• 12V is connected to:

  • • of the Battery 12V

• OUT1 is connected to:

  • pin 1 of DC Motor 1

• OUT2 is connected to:

  • pin 2 of DC Motor 1

• OUT3 is connected to:

  • pin 2 of DC Motor 2

• OUT4 is connected to:

  • pin 1 of DC Motor 2

Battery 12V

• + is connected to:

  • 12V of the L298N DC Motor Driver

• - is connected to:

  • GND of the ESP32
  • GND of the Servo
  • GND of the Ultrasonic Sensor
  • GND of the L298N DC Motor Driver

Code

No code provided.