Smart Garden

Having fun with sensors

This projects contains the code necessary to set up an automatic irrigation and data collection system for a garden using an Arduino microcontroller. The system is designed to monitor soil moisture levels and automatically water the garden when the moisture falls below a certain threshold. In addition, the system collects data on temperature, humidity, and light levels to provide insights into growing conditions and plant health. The code is well-documented and includes instructions on how to set up the hardware and configure the system. The projects also includes sample data and scripts for visualizing the collected data.

Sorry for the messy set up

This is how it started me playing with bunch of arduino sensors and a board. then decided to try it on my small plants and then a friend garden, then it was upgraded to a working demo for our company Industrial ML Inc

A Sample sketch

Here is a demo code that I am using to collect data and connect to wifi, In the project a sample code like this and add sending data through MQTT to the reciever section that will handle the irrigation part

#include <DHT.h>
#include <DHT_U.h>
#include <ESP8266.h>
// Global variables and defines

#define DHTPIN 2
#define DHTTYPE DHT11

const char *SSID     = "WIFI-SSID"; 
const char *PASSWORD = "PASSWORD" ; 

char* const host = "www.google.com"; 
int hostPort = 80;
ESP8266 wifi;

 int smokeA0 = A0;
 int soilA1 = A1;
 int rainA2 = A2;

DHT dht(DHTPIN, DHTTYPE);


void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(smokeA0, INPUT);
  pinMode(soilA1, INPUT);
  pinMode(rainA2, INPUT);
  Serial.begin(9600);
  wifi.init(SSID, PASSWORD);
  dht.begin();

}
 
void loop() {
   Serial.println(); 
   // Wifi module Test 
   wifi.httpGet(host, hostPort);
  // get response buffer. Note that it is set to 250 bytes due to the Arduino low memory
  char* wifiBuf = wifi.getBuffer();
   
  char *wifiDateIdx = strstr (wifiBuf, "Date");
  for (int i = 0; wifiDateIdx[i] != '\n' ; i++)
  Serial.print(wifiDateIdx[i]);

  int smoke_level = analogRead(smokeA0);
  int soil_moisture = analogRead(soilA1); 
  int rain_level = analogRead(rainA2); 

  float h = dht.readHumidity();
  // Read temperature as Celsius
  float t = dht.readTemperature();
  Serial.print("Temperature = ");
  Serial.print(t);
  Serial.println(" *C ");

  Serial.print("Humidity = ");
  Serial.print(h);
  Serial.println(" %\t");

  Serial.print("Smoke detector: ");
  Serial.println(smoke_level);

  Serial.print("Soil Moisture: ");
  Serial.println(soil_moisture);

  Serial.print("rain detector: ");
  Serial.println(rain_level);


  delay(2000);

}