Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO, an HC-SR04 Ultrasonic Sensor, an HC-05 Bluetooth Module, an L298N DC motor driver, a LiPo battery charger module, two 18650 Li-ion batteries, two DC motors, a buzzer, and a power jack. The circuit is designed to interface various sensors and actuators with the Arduino UNO, enabling control and communication functionalities.

Component List

Arduino UNO

• Description: A microcontroller board based on the ATmega328P.
• 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

HC-SR04 Ultrasonic Sensor

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

HC-05 Bluetooth Module

• Description: A module used for wireless communication over Bluetooth.
• Pins: Key, VCC, GND, TXD, RXD, State

L298N DC Motor Driver

• Description: A dual H-Bridge motor driver module.
• 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

LiPo Battery Charger Module

• Description: A module used for charging LiPo batteries.
• Pins: B-, B+, OUT-, OUT+

18650 Li-ion Battery x 2

• Description: Rechargeable lithium-ion batteries.
• Pins: +, -

DC Motor

• Description: A motor that runs on direct current.
• Pins: pin 1, pin 2

Buzzer

• Description: An audio signaling device.
• Pins: PIN, GND

Power Jack

• Description: A connector for supplying power to the circuit.
• Pins: POSITIF, NEGATIF

Wiring Details

Arduino UNO

• 5V: Connected to VCC of HC-05 Bluetooth Module, VCC of HC-SR04 Ultrasonic Sensor, and 5V of L298N DC motor driver.
• GND: Connected to GND of HC-05 Bluetooth Module, GND of HC-SR04 Ultrasonic Sensor, GND of L298N DC motor driver, and B- of LiPo battery charger module.
• A5: Connected to PIN of Buzzer.
• D11: Connected to TRIG of HC-SR04 Ultrasonic Sensor.
• D10: Connected to ENA of L298N DC motor driver.
• D9: Connected to IN1 of L298N DC motor driver.
• D8: Connected to IN2 of L298N DC motor driver.
• D7: Connected to ECHO of HC-SR04 Ultrasonic Sensor.
• D6: Connected to ENB of L298N DC motor driver.
• D5: Connected to IN4 of L298N DC motor driver.
• D4: Connected to IN3 of L298N DC motor driver.
• D1: Connected to RXD of HC-05 Bluetooth Module.
• D0: Connected to TXD of HC-05 Bluetooth Module.

HC-SR04 Ultrasonic Sensor

• VCC: Connected to 5V of Arduino UNO.
• GND: Connected to GND of Arduino UNO.
• TRIG: Connected to D11 of Arduino UNO.
• ECHO: Connected to D7 of Arduino UNO.

HC-05 Bluetooth Module

• VCC: Connected to 5V of Arduino UNO.
• GND: Connected to GND of Arduino UNO.
• TXD: Connected to D0 of Arduino UNO.
• RXD: Connected to D1 of Arduino UNO.

L298N DC Motor Driver

• 5V: Connected to 5V of Arduino UNO.
• GND: Connected to GND of Arduino UNO.
• ENA: Connected to D10 of Arduino UNO.
• IN1: Connected to D9 of Arduino UNO.
• IN2: Connected to D8 of Arduino UNO.
• IN3: Connected to D4 of Arduino UNO.
• IN4: Connected to D5 of Arduino UNO.
• ENB: Connected to D6 of Arduino UNO.
• OUT1: Connected to pin 2 of DC Motor 1.
• OUT2: Connected to pin 1 of DC Motor 1.
• OUT3: Connected to pin 2 of DC Motor 2.
• OUT4: Connected to pin 1 of DC Motor 2.
• 12V: Connected to B+ of LiPo battery charger module.

LiPo Battery Charger Module

• B+: Connected to 12V of L298N DC motor driver.
• B-: Connected to GND of Arduino UNO.
• OUT+: Connected to POSITIF of Power Jack.
• OUT-: Connected to NEGATIF of Power Jack.

18650 Li-ion Battery x 2

• +: Connected to POSITIF of Power Jack.
• -: Connected to NEGATIF of Power Jack.

DC Motor 1

• pin 1: Connected to OUT2 of L298N DC motor driver.
• pin 2: Connected to OUT1 of L298N DC motor driver.

DC Motor 2

• pin 1: Connected to OUT4 of L298N DC motor driver.
• pin 2: Connected to OUT3 of L298N DC motor driver.

Buzzer

• PIN: Connected to A5 of Arduino UNO.
• GND: Connected to GND of Arduino UNO.

Power Jack

• POSITIF: Connected to OUT+ of LiPo battery charger module and + of 18650 Li-ion Battery x 2.
• NEGATIF: Connected to OUT- of LiPo battery charger module and - of 18650 Li-ion Battery x 2.

Documented Code

Arduino UNO Code (sketch.ino)

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

}

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

}

Documentation (documentation.txt)

This document provides a comprehensive overview of the circuit, including the components used, their wiring details, and the code for the Arduino UNO.