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Arduino UNO-Based Security System with Bluetooth Connectivity and LED Indicators

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Circuit Documentation

Summary

This document provides a detailed overview of a circuit that includes an Arduino UNO as the central microcontroller, interfaced with various sensors and modules including a PIR motion sensor (HC-SR501), a buzzer (FIT0449), a soil moisture sensor (SEN040129), a Bluetooth module (HC-06), and two LED modules (JLED-START and JLED-ARROW-9). The circuit is designed to perform tasks that likely involve motion detection, wireless communication, and visual signaling.

Component List

Arduino UNO

  • Description: A microcontroller board based on the ATmega328P.
  • Pins: UNUSED, IOREF, Reset, 3.3V, 5V, GND, Vin, A0-A5, SCL, SDA, AREF, D0-D13.

PIR HC-SR501

  • Description: A passive infrared sensor module for motion detection.
  • Pins: VDD, SIG, GND.

FIT0449

  • Description: A buzzer module for audible signaling.
  • Pins: GND, SIGNAL, VCC.

SEN040129

  • Description: A soil moisture sensor for detecting the moisture level in soil.
  • Pins: GND, VCC, OUT.

HC-06

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

JLED-ARROW-9

  • Description: An LED module with an arrow pattern for directional indication.
  • Pins: DOUT, VCC, GND, DIN.

JLED-START

  • Description: An LED module for visual signaling.
  • Pins: GND, DIN, VCC, DOUT.

Wiring Details

Arduino UNO

  • 5V connected to VCC of FIT0449, PIR HC-SR501, JLED-START, HC-06, SEN040129.
  • GND connected to GND of FIT0449, PIR HC-SR501, JLED-START, HC-06, SEN040129.
  • A1 connected to OUT of SEN040129.
  • D8 connected to SIGNAL of FIT0449 and TXD of HC-06.
  • D7 connected to RXD of HC-06.
  • D3 connected to SIG of PIR HC-SR501.
  • D2 connected to DIN of JLED-START.

PIR HC-SR501

  • VDD connected to 5V of Arduino UNO.
  • SIG connected to D3 of Arduino UNO.
  • GND connected to GND of Arduino UNO.

FIT0449

  • VCC connected to 5V of Arduino UNO.
  • SIGNAL connected to D8 of Arduino UNO.
  • GND connected to GND of Arduino UNO.

SEN040129

  • VCC connected to 5V of Arduino UNO.
  • OUT connected to A1 of Arduino UNO.
  • GND connected to GND of Arduino UNO.

HC-06

  • VCC connected to 5V of Arduino UNO.
  • TXD connected to D8 of Arduino UNO.
  • RXD connected to D7 of Arduino UNO.
  • GND connected to GND of Arduino UNO.

JLED-ARROW-9

  • DIN connected to DOUT of JLED-START.
  • VCC connected to VCC of JLED-START.
  • GND connected to GND of JLED-START.

JLED-START

  • DIN connected to D2 of Arduino UNO.
  • VCC connected to 5V of Arduino UNO.
  • GND connected to GND of Arduino UNO.
  • DOUT connected to DIN of JLED-ARROW-9.

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:

}

Note: The provided code is a template and does not contain any functional code. It needs to be populated with the logic to control the sensors and modules based on the requirements of the circuit's application.