Arduino-Based Smart Irrigation and Environmental Monitoring System

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Circuit Documentation

Summary

This document provides a detailed overview of a complex circuit involving various sensors, actuators, and microcontrollers. The circuit includes components such as a 9V battery, I2C LCD, DHT22 sensor, soil moisture sensor, water pump, OV7670 camera, AC bulb, relay modules, servo motors, and multiple Arduino UNO microcontrollers with sensor shields. The circuit is designed to monitor environmental conditions and control actuators based on sensor inputs.

Component List

9V Battery

Description: Provides power to the circuit.
Pins: -, +

16x2 I2C LCD

Description: Displays information.
Pins: GND, VCC, SDA, SCL

DHT22

Description: Measures temperature and humidity.
Pins: +, Out, -

SparkFun Soil Moisture Sensor

Description: Measures soil moisture levels.
Pins: VCC, GND, SIG

Water Pump

Description: Pumps water.
Pins: positive, negative

OV7670

Description: Camera module.
Pins: RET, PWDN, D1, D0, D3, D2, D4, D5, D6, PLK, XLK, D7, VS, HS, SCL, SDA, 3.3V, DGND

AC Bulb

Description: Standard AC bulb.
Pins: P, N

Relay 4 Channel 5v

Description: Controls high voltage devices.
Pins: GND, IN1, IN2, IN3, IN4, VCC, COM1, COM2, COM3, COM4, NO1, NO2, NO3, NO4, NC1, NC2, NC3, NC4

Servo Motor 9G

Description: Small servo motor.
Pins: VCC 5V, PMW, GND

LM393

Description: Comparator module.
Pins: A0, D0, GND, VCC

Power 220v

Description: Provides 220V AC power.
Pins: hot wire, neutral wire

BH1750

Description: Light intensity sensor.
Pins: VCC, GND, SCL, SDA, ADDR

Arduino UNO

Description: Microcontroller board.
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

Arduino Sensor Shield v5.0

Description: Shield for Arduino UNO to simplify sensor connections.
Pins: VCC, SD-VCC, SD-GND, SD-D11, SD-D10, SD-D13, SD-D12, URF01-VCC, URF01-A0, URF01-A1, URF01-GND, GND, SEL1, SEL2, A0-SIG, A0-VCC, A0-GND, A1-SIG, A1-VCC, A1-GND, A2-SIG, A2-VCC, A2-GND, A3-SIG, A3-VCC, A3-GND, A4-SIG, A4-VCC, A4-GND, A5-SIG, A5-VCC, A5-GND, IIC-SCL, IIC-SDA, IIC-GND, IIC-VCC, COM-TX, COM-RX, COM-GND, COM-VCC, APC220-, APC220-D0, APC220-D1, APC220-VCC, APC220-GND, BLUETOOTH-3V3, BLUETOOTH-GND, BLUETOOTH-D0, BLUETOOTH-D1, BLUETOOTH-VCC, AREF-S, AREF-V, AREF-G, GND-S, GND-V, GND-G, 13-S, 13-V, 13-G, 12-S, 12-V, 12-G, 11-S, 11-V, 11-G, 10-S, 10-V, 10-G, 9-S, 9-V, 9-G, 8-S, 8-V, 8-G, 7-S, 7-V, 7-G, 6-S, 6-V, 6-G, 5-S, 5-V, 5-G, 4-S, 4-V, 4-G, 3-S, 3-V, 3-G, 2-S, 2-V, 2-G, 1-S, 1-V, 1-G, 0-S, 0-V, 0-G, ParallelLCD-VCC, ParallelLCD-D13, ParallelLCD-GND, ParallelLCD-D12, ParallelLCD-D2, ParallelLCD-D11, ParallelLCD-D3, ParallelLCD-D10, ParallelLCD-D4, ParallelLCD-D9, ParallelLCD-D5, ParallelLCD-D8, ParallelLCD-D6, ParallelLCD-D7, SerialLCD-D4, SerialLCD-VCC, SerialLCD-D3, SerialLCD-, SerialLCD-D2, SerialLCD-GND

Tower Pro SG90 Servo

Description: Small servo motor.
Pins: Signal, +5V, GND

Wiring Details