Automatic-sprinkler-system

Esp32-based automatic irrigation system capable of controlling up to 6 different zones independently

Features :

• Create a wifi access point to enter wifi information
• Automatically connects to the local network if available
• Compatible with a weather station included in the project to collect temperature, humidity and brightness data, also features a rain sensor
• Able to use up to 3 soil moisture sensors
• Controllable through a web page (LOCAL_IP_ADDRESS/accueil ex : 192.168.1.10/accueil)

  • 3 operating modes :

    - MANU -> allows manual control of the 6 valves independently; once the selected valve is active, it can be deactivated only if the user does it manually.
    - AUTO -> uses weather station and soil moisture sensors to automatically trigger a 15-minute watering cycle.
    - PROG -> allows the user to enter information such as watering start and end date, watering duration, recurrence and watering time for each valve via a form.
    

• Ability to view the current program and sensors values via a dashboard page (LOCAL_IP_ADDRESS/dashboard ex : 192.168.1.10/dashboard)
• Compatible with arduino OTA (update through the local network)
• Automatic sprinkler stop in case of rain (except in MANU mode)
• Transmits sensor data hourly to a Google sheet to create a database

Future improvements :

• Web pages :
  • Add a settings page
  • Add the possibility of choosing the language (French only for the moment)
  • Add the ability to modify the ID of Google Sheet page in the web interface
  • Add the possibility to modify the number of valve used
• Database :
  • Improve the data sent as the total duration of watering during the last hour to be able to deduct the cost of watering per month and per year
• PCB :
  • Upgrade to an ESP32-WROOM-32UE to add an external antenna and increase the WiFi connection range
  • Move mounting holes & components away from board edge
  • Increase mounting hole size to M3
  • Move decoupling capacitors closer to power supply pins
  • Add a differential pair to the usb port
  • Improve the DC-DC Buck Converter design (produce heat + noise coming from the inductance during current peaks)

How to start up :

Home page & Dashboard

• Download the code and upload it to the ESP 32

• Press the reset button on the PCB

• Go to the phone settings and connect to the Wifi network: ArrosageAUTO_XXX

• Wait for a web page to open. If the web page doesn't open automatically, go to your browser and type "192.168.4.1"

• Click on "Configure WiFi"

• select your wifi network and enter your password

• Click on "Save"

• And you're done, you can now access the following web pages: LOCAL_IP_ADDRESS/accueil & LOCAL_IP_ADDRESS/dashboard

Dadabase

• Download the following file here and place it in your personal directory
• Click on "file" -> "save in google sheet format"

• Then click on "extensions" -> "apps script" and paste the following code :

var sheet_id = "YOUR_GOOGLE_SHEET_ID";
var sheet_name = "ArrosageAUTO_data";
function doGet(e){
var ss = SpreadsheetApp.openById(sheet_id);
var sheet = ss.getSheetByName(sheet_name);

var date = e.parameter.date;
var temperature = e.parameter.temperature;
var humidite = e.parameter.humidite;
var luminosite = e.parameter.luminosite;
var moistureSensor1 = e.parameter.moistureSensor1;
var moistureSensor2 = e.parameter.moistureSensor2;
var moistureSensor3 = e.parameter.moistureSensor3;

sheet.appendRow([date,temperature, humidite, luminosite, moistureSensor1, moistureSensor2, moistureSensor3]);
}

• Click on "deploy" -> "New deployment" add a description and click "OK"

Additional material required :

• DHT22 temperature and humidity sensor
• Capacitive moisture sensor (3 maximum)
• 9V 24V tranformer (depending on your instlation)
• Rain sensor
• Wi-Fi network (a powerful network to allow pages to load faster)

Web pages :

Home page & Dashboard

Extract from the database

PCB :

You can directly order the PCB via this link: https://www.pcbway.com/project/shareproject/Automatic_Watering_System_7e1279b2.html

Weather station :