Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes various sensors, motors, a driver shield, and a microcontroller. The circuit is designed to interface with multiple sensors and control motors, likely for a robotic or automation application. The components are interconnected through a driver shield, which also serves as the main microcontroller unit.

Component List

1. HC-SR04 Ultrasonic Sensor

   • Pins: VCC, TRIG, ECHO, GND
   • Description: Ultrasonic distance sensor used for measuring distance by using ultrasonic waves.

2. IR Sensor

   • Pins: out, gnd, vcc
   • Description: Infrared sensor used for detecting objects or obstacles.

3. ESP32 CAM

   • Pins: 5V, GND, GPIO12, GPIO13, GPIO15, GPIO14, GPIO2, GPIO4, 3.3V, GPIO16, GPIO0, 3.3V / 5V / P_OUT, GPIO3 / RX, GPIO1 / TX
   • Description: Microcontroller with built-in camera module for capturing images and video.

4. Motor and Wheels

   • Pins: vcc, GND
   • Description: Motor and wheel assembly for movement.

5. DC Motor

   • Pins: pin 1, pin 2
   • Description: Direct current motor for rotational movement.

6. PIR Sensor

   • Pins: VDD, SIG, GND
   • Description: Passive infrared sensor for motion detection.

7. DRIVER SHIELD L293D

   • Pins: RESET, 3.3V, 5V, GND, VIN, 9V, A0, A1, A2, A3, A4, A5, M2 (+), M2 GND (-), M1 (+), M1 GND (-), M3 (+), M3 GND (-), M4 GND (-), M4 (+), SERVO_2, SERVO_1, RX/D0, TX/D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, ARef, D13, D12, VCC (External Power Supply), GND (External Power Supply)
   • Description: Motor driver shield for controlling multiple motors and interfacing with sensors.

8. Rocker Switch

   • Pins: 1, 2
   • Description: Switch for turning the circuit on and off.

9. Battery 12V

   • Pins: +, -
   • Description: Power supply for the circuit.

10. Battery Indicator

    • Pins: +, -
    • Description: Indicator for battery status.

Wiring Details

HC-SR04 Ultrasonic Sensor

• VCC connected to 5V on DRIVER SHIELD L293D
• TRIG connected to D12 on DRIVER SHIELD L293D
• ECHO connected to D11 on DRIVER SHIELD L293D
• GND connected to GND on DRIVER SHIELD L293D

HC-SR04 Ultrasonic Sensor

• VCC connected to 5V on DRIVER SHIELD L293D
• TRIG connected to D10 on DRIVER SHIELD L293D
• ECHO connected to D9 on DRIVER SHIELD L293D
• GND connected to GND on DRIVER SHIELD L293D

IR Sensor

• out connected to D8 on DRIVER SHIELD L293D
• gnd connected to GND on DRIVER SHIELD L293D
• vcc connected to 5V on DRIVER SHIELD L293D

IR Sensor

• out connected to D6 on DRIVER SHIELD L293D
• gnd connected to GND on DRIVER SHIELD L293D
• vcc connected to 5V on DRIVER SHIELD L293D

IR Sensor

• out connected to D5 on DRIVER SHIELD L293D
• gnd connected to GND on DRIVER SHIELD L293D
• vcc connected to 5V on DRIVER SHIELD L293D

IR Sensor

• out connected to D7 on DRIVER SHIELD L293D
• gnd connected to GND on DRIVER SHIELD L293D
• vcc connected to 5V on DRIVER SHIELD L293D

PIR Sensor

• GND connected to GND on DRIVER SHIELD L293D
• VDD connected to 5V on DRIVER SHIELD L293D
• SIG connected to D13 on DRIVER SHIELD L293D

ESP32 CAM

• GND connected to GND on DRIVER SHIELD L293D
• 5V connected to 5V on DRIVER SHIELD L293D
• GPIO3 / RX connected to RX/D0 on DRIVER SHIELD L293D
• GPIO1 / TX connected to TX/D1 on DRIVER SHIELD L293D

DC Motor

• pin 2 connected to M2 (+) on DRIVER SHIELD L293D
• pin 1 connected to M2 GND (-) on DRIVER SHIELD L293D

DC Motor

• pin 2 connected to M1 (+) on DRIVER SHIELD L293D
• pin 1 connected to M1 GND (-) on DRIVER SHIELD L293D

Motor and Wheels

• vcc connected to M3 (+) on DRIVER SHIELD L293D
• GND connected to M3 GND (-) on DRIVER SHIELD L293D

Motor and Wheels

• vcc connected to M4 (+) on DRIVER SHIELD L293D
• GND connected to M4 GND (-) on DRIVER SHIELD L293D

Rocker Switch

• 2 connected to + on Battery Indicator and VCC (External Power Supply) on DRIVER SHIELD L293D
• 1 connected to + on Battery 12V

Battery 12V

• - connected to - on Battery Indicator and GND (External Power Supply) on DRIVER SHIELD L293D

Documented Code

sketch.ino

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

}

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

}

documentation.txt