The MIT App Inventor AND smart Garden-2

 Project Name:

The MIT App Inventor  AND smart Garden-2

Benefits of a Smart Garden

• Water Conservation: Smart irrigation systems reduce water usage by watering plants only when necessary.

• Convenience: Automatic watering, lighting, and climate control make plant care easier and less time-consuming.

• Healthier Plants: Sensors help you keep track of essential factors like soil moisture, temperature, and sunlight to ensure plants thrive.

• Energy Efficiency: Some systems optimize the use of energy, reducing electricity bills, especially in indoor gardens.

• Remote Monitoring: You can monitor and adjust your garden remotely via mobile apps.

 Project Related to photos:

 arduino code of MIT App

// Define the pin for the moisture sensor and pump

const int moistureSensorPin = A0;  // Moisture sensor connected to analog pin A0

const int pumpPin = 2;             // Water pump connected to digital pin 8 (via relay)

// Set moisture threshold value

const int lowMoistureThreshold = 200; // Adjust this value based on your sensor's calibration

const int highMoistureThreshold = 950;

void setup() {

  Serial.begin(9600);  // Start serial communication

  // Set the pump pin as output (for relay control)

  pinMode(pumpPin, OUTPUT);

  // Initially turn off the pump (relay will be in "NO" state)

  digitalWrite(pumpPin, LOW);

}

void loop() {

  // Read the moisture level from the sensor

  int moistureValue = analogRead(moistureSensorPin);

  // Print the moisture value to Serial Monitor

  Serial.print("Moisture Value: ");

  Serial.println(moistureValue);

  // Control the pump based on moisture level

  if (moistureValue < lowMoistureThreshold) {

    digitalWrite(pumpPin, HIGH);  // Turn on the pump (relay switches to "COM")

    Serial.println("Pump ON - Soil is Dry!");

  } else {

    digitalWrite(pumpPin, LOW);   // Turn off the pump (relay goes back to "NO")

    Serial.println("Pump OFF - Soil is Wet.");

  }

\

  Serial.println("----------");

  delay(1000);  // Wait 1 second before the next reading

}

The Ardiuno is in intrduction:

Core Components

1. Arduino Board – The brain. Popular ones include:

   • Arduino Uno (most beginner-friendly)

   • Arduino Nano (compact)

   • Arduino Mega (more inputs/outputs)

   • XIAO INTRODUCTION:

   •  Why Choose XIAO?

     • Compact Size: The tiny form factor is perfect for limited space projects.

     • Affordable: Great price for the features offered, making it accessible for hobbyists and professionals alike.

     • Flexible: Compatible with the Arduino IDE and CircuitPython, giving you a variety of programming options.

     • 

Common Applications of IoT

• Smart Homes: Thermostats, lights, and security systems that you can control with your phone.

• Healthcare: Wearables that monitor heart rate, oxygen levels, and physical activity.

• Industrial IoT (IIoT): Machinery maintenance, production line automation, and energy management.

• Smart Cities: Traffic control, waste management, and environmental monitoring.

 code of soil mosture:

const int relayPin = 7;

const int moisturePin = A0;

void setup() {

  pinMode(relayPin, OUTPUT);

  pinMode(moisturePin, INPUT);

  pinMode(relayPin, OUTPUT);      

  digitalWrite(relayPin, HIGH);

  Serial.begin(9600);

}

void loop() {

  int moistureValue = analogRead(moisturePin); // Read value from sensor

  Serial.println(moistureValue);

  delay(2000);

 

if (Serial.available() > 0) {

    char command = Serial.read();

   

    if (command == 'A') {

      digitalWrite( relayPin ,LOW);

    }

    else if (command == 'a') {

      digitalWrite(relayPin, HIGH);

    }

  }

}