Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino Mega 2560 microcontroller, multiple servos, sensors, a motor driver, motors, a speaker, a transistor, resistors, capacitors, a display, an ESP32 microcontroller, and power components. The circuit is designed to control various actuators and sensors, providing a comprehensive setup for a robotics or automation project.

Component List

1. Arduino Mega 2560

   • Description: A microcontroller board based on the ATmega2560.
   • Pins: IOREF, RESET, 3V3, 5V, GND, VIN, A0-A15, D0-D53, AREF, SDA, SCL

2. Micro Servo 9G

   • Description: A small servo motor.
   • Pins: GND, +5V, PWM

3. MG90S

   • Description: A metal gear servo motor.
   • Pins: SIG, VCC, GND

4. Ultrasonic Sensor

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

5. Touch Sensor

   • Description: A sensor that detects touch.
   • Pins: IO, VCC, GND

6. L298N DC Motor Driver

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

7. DC Mini Metal Gear Motor

   • Description: A small DC motor with metal gears.
   • Pins: IN1, IN2

8. IR Sensor

   • Description: An infrared sensor.
   • Pins: out, gnd, vcc

9. Speaker

   • Description: A small speaker.
   • Pins: +, -

10. NPN Transistor (ECB)

    • Description: A transistor with emitter, collector, and base pins.
    • Pins: emitter, collector, base

11. Resistor

    • Description: A passive electrical component.
    • Pins: pin1, pin2
    • Properties: Resistance: 6.8 Ohms, 220 Ohms

12. Electrolytic Capacitor

    • Description: A polarized capacitor.
    • Pins: -, +
    • Properties: Capacitance: 0.000001 Farads

13. GC9A01

    • Description: A display module.
    • Pins: RST, CS, DC, SDA, SCL, GND, VCC

14. ESP32

    • Description: A 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

15. 3.7v LiPo

    • Description: A 3.7V lithium polymer battery.
    • Pins: +Ve, GND

16. Rocker Switch

    • Description: A switch with two positions.
    • Pins: 1, 2

17. XL4015 5A DC Buck Step-down

    • Description: A DC-DC buck converter.
    • Pins: Output +, Output -, Input +, Input -

Wiring Details

Arduino Mega 2560

• 5V connected to:

  • +5V of Micro Servo 9G (multiple instances)
  • VCC of MG90S
  • +VCC of Ultrasonic Sensor
  • VCC of Touch Sensor
  • VCC of IR Sensor (multiple instances)
  • pin1 of Resistor (6.8 Ohms)

• GND connected to:

  • GND of Micro Servo 9G (multiple instances)
  • GND of MG90S
  • GND of Ultrasonic Sensor
  • GND of Touch Sensor
  • GND of IR Sensor (multiple instances)
  • • of Speaker
  • emitter of NPN Transistor (ECB)
  • GND of 3.7v LiPo

• VIN connected to:

  • pin1 of Rocker Switch

• D2 PWM connected to:

  • IO of Touch Sensor

• D3 PWM connected to:

  • PWM of Micro Servo 9G

• D4 PWM connected to:

  • PWM of Micro Servo 9G

• D5 PWM connected to:

  • PWM of Micro Servo 9G

• D6 PWM connected to:

  • PWM of Micro Servo 9G

• D7 PWM connected to:

  • PWM of Micro Servo 9G

• D8 PWM connected to:

  • ENB of L298N DC Motor Driver

• D9 PWM connected to:

  • ENA of L298N DC Motor Driver

• D11 PWM connected to:

  • SIG of MG90S

• D12 PWM connected to:

  • PWM of Micro Servo 9G

• D13 PWM connected to:

  • pin2 of Resistor (220 Ohms)

• D41 connected to:

  • Trigger of Ultrasonic Sensor

• D39 connected to:

  • Echo of Ultrasonic Sensor

• D52 connected to:

  • out of IR Sensor

• D53 connected to:

  • out of IR Sensor

• D51 connected to:

  • IN1 of L298N DC Motor Driver

• D49 connected to:

  • IN2 of L298N DC Motor Driver

• D47 connected to:

  • IN3 of L298N DC Motor Driver

• D45 connected to:

  • IN4 of L298N DC Motor Driver

Micro Servo 9G

• GND connected to:

  • GND of Arduino Mega 2560
  • emitter of NPN Transistor (ECB)

• +5V connected to:

  • 5V of Arduino Mega 2560
  • pin1 of Resistor (6.8 Ohms)

• PWM connected to:

  • D3 PWM of Arduino Mega 2560
  • D4 PWM of Arduino Mega 2560
  • D5 PWM of Arduino Mega 2560
  • D6 PWM of Arduino Mega 2560
  • D7 PWM of Arduino Mega 2560
  • D12 PWM of Arduino Mega 2560

MG90S

• SIG connected to:

  • D11 PWM of Arduino Mega 2560

• VCC connected to:

  • 5V of Arduino Mega 2560

• GND connected to:

  • GND of Arduino Mega 2560

Ultrasonic Sensor

• +VCC connected to:

  • 5V of Arduino Mega 2560

• Trigger connected to:

  • D41 of Arduino Mega 2560

• Echo connected to:

  • D39 of Arduino Mega 2560

• GND connected to:

  • GND of Arduino Mega 2560

Touch Sensor

• IO connected to:

  • D2 PWM of Arduino Mega 2560

• VCC connected to:

  • 5V of Arduino Mega 2560

• GND connected to:

  • GND of Arduino Mega 2560

L298N DC Motor Driver

• ENB connected to:

  • D8 PWM of Arduino Mega 2560

• ENA connected to:

  • D9 PWM of Arduino Mega 2560

• IN1 connected to:

  • D51 of Arduino Mega 2560

• IN2 connected to:

  • D49 of Arduino Mega 2560

• IN3 connected to:

  • D47 of Arduino Mega 2560

• IN4 connected to:

  • D45 of Arduino Mega 2560

• OUT1 connected to:

  • IN2 of DC Mini Metal Gear Motor

• OUT2 connected to:

  • IN1 of DC Mini Metal Gear Motor

• OUT3 connected to:

  • IN2 of DC Mini Metal Gear Motor

• OUT4 connected to:

  • IN1 of DC Mini Metal Gear Motor

• 12V connected to:

  • pin1 of Rocker Switch

• GND connected to:

  • GND of 3.7v LiPo

DC Mini Metal Gear Motor

• IN1 connected to:
  • OUT2 of L298N DC Motor Driver
  • OUT4 of L