Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO microcontroller, various sensors, motors, a motor driver, a servo, and a power supply. The circuit is designed to interface with multiple sensors and actuators, controlled by the Arduino UNO. The power is supplied by two 18650 Li-ion batteries, and a rocker switch is used to control the power flow.

Component List

18650 Li-ion Battery x 2

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

Arduino UNO

• Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0, A1, A2, A3, A4, A5, SCL, SDA, AREF, D13, D12, D11, D10, D9, D8, D7, D6, D5, D4, D3, D2, D1, D0
• Description: Microcontroller board.
• Purpose: Central control unit.

IR Sensor (x2)

• Pins: out, gnd, vcc
• Description: Infrared sensor for object detection.
• Purpose: Sensing objects.

HC-SR04 Ultrasonic Sensor

• Pins: VCC, TRIG, ECHO, GND
• Description: Ultrasonic distance sensor.
• Purpose: Measuring distance.

Micro Servo 9G

• Pins: GND, +5V, PWM
• Description: Small servo motor.
• Purpose: Actuation.

Motor (x4)

• Pins: vcc, GND
• Description: Hobby motor with gearbox.
• Purpose: Actuation.

L298N DC Motor Driver

• 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
• Description: Dual H-Bridge motor driver.
• Purpose: Driving motors.

Rocker Switch

• Pins: output, input
• Description: On/Off switch.
• Purpose: Controlling power flow.

Wiring Details

18650 Li-ion Battery x 2

• + Pin: Connected to the input pin of the rocker switch.
• - Pin: Connected to the GND pins of the Arduino UNO, Micro Servo 9G, HC-SR04 Ultrasonic Sensor, both IR sensors, and the L298N DC motor driver.

Arduino UNO

• Vin Pin: Connected to the output pin of the rocker switch.
• GND Pin: Connected to the GND pins of the Micro Servo 9G, HC-SR04 Ultrasonic Sensor, both IR sensors, and the L298N DC motor driver.
• 5V Pin: Connected to the VCC pins of the Micro Servo 9G, HC-SR04 Ultrasonic Sensor, and both IR sensors.
• A0 Pin: Connected to the out pin of the first IR sensor.
• A1 Pin: Connected to the out pin of the second IR sensor.
• A2 Pin: Connected to the ECHO pin of the HC-SR04 Ultrasonic Sensor.
• A3 Pin: Connected to the TRIG pin of the HC-SR04 Ultrasonic Sensor.
• A5 Pin: Connected to the PWM pin of the Micro Servo 9G.
• D10 Pin: Connected to the ENA pin of the L298N DC motor driver.
• D9 Pin: Connected to the IN1 pin of the L298N DC motor driver.
• D8 Pin: Connected to the IN2 pin of the L298N DC motor driver.
• D7 Pin: Connected to the IN3 pin of the L298N DC motor driver.
• D6 Pin: Connected to the IN4 pin of the L298N DC motor driver.
• D5 Pin: Connected to the ENB pin of the L298N DC motor driver.

IR Sensor (x2)

• out Pin: Connected to A0 (first sensor) and A1 (second sensor) pins of the Arduino UNO.
• gnd Pin: Connected to the GND pin of the Arduino UNO.
• vcc Pin: Connected to the 5V pin of the Arduino UNO.

HC-SR04 Ultrasonic Sensor

• VCC Pin: Connected to the 5V pin of the Arduino UNO.
• TRIG Pin: Connected to the A3 pin of the Arduino UNO.
• ECHO Pin: Connected to the A2 pin of the Arduino UNO.
• GND Pin: Connected to the GND pin of the Arduino UNO.

Micro Servo 9G

• GND Pin: Connected to the GND pin of the Arduino UNO.
• +5V Pin: Connected to the 5V pin of the Arduino UNO.
• PWM Pin: Connected to the A5 pin of the Arduino UNO.

Motor (x4)

• vcc Pin: Connected to the OUT2 and OUT3 pins of the L298N DC motor driver.
• GND Pin: Connected to the OUT1 and OUT4 pins of the L298N DC motor driver.

L298N DC Motor Driver

• 12V Pin: Connected to the output pin of the rocker switch.
• GND Pin: Connected to the GND pin of the Arduino UNO.
• OUT1 Pin: Connected to the GND pins of two motors.
• OUT2 Pin: Connected to the vcc pins of two motors.
• OUT3 Pin: Connected to the vcc pins of two motors.
• OUT4 Pin: Connected to the GND pins of two motors.
• ENA Pin: Connected to the D10 pin of the Arduino UNO.
• IN1 Pin: Connected to the D9 pin of the Arduino UNO.
• IN2 Pin: Connected to the D8 pin of the Arduino UNO.
• IN3 Pin: Connected to the D7 pin of the Arduino UNO.
• IN4 Pin: Connected to the D6 pin of the Arduino UNO.
• ENB Pin: Connected to the D5 pin of the Arduino UNO.

Rocker Switch

• input Pin: Connected to the + pin of the 18650 Li-ion Battery x 2.
• output Pin: Connected to the Vin pin of the Arduino UNO and the 12V pin of the L298N DC motor driver.

Documented Code

Arduino UNO Code

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

}

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

}

This code is a basic template for the Arduino UNO. The setup function is used to initialize any settings or configurations, and the loop function contains the main code that runs repeatedly.