Published July 14, 2022

Soil monitoring with Agrumino and Blynk dashboard

A system to monitor the soil status using Wi-Fi with a remote dashboard based on Blynk.

IntermediateProtip1 hour165

Soil monitoring with Agrumino and Blynk dashboard

Things used in this project

Hardware components

Lifely Agrumino

Software apps and online services

Arduino IDE

Blynk

site+android app

Story

This project is aimed at presenting a soil monitoring system obtained by integrating Agrumino Lemon with the Blynk IoT platform.

Requirements

For this project, just the Lifely Agrumino Lemon will be needed.

Step 1 - Blynk basic setup

Create an account on https://blynk.io/

Create a new template by clicking the following symbol from the left of the page

1 / 2

In the newly opened dialog, in fields Hardware and Connection Type select respectively ESP8266 and WiFi

WARNING: After completing the changes and creating the template, save them by clicking the relative button at the top right of the screen

Step 1.1 - Configuring the datastreams

Go to the Datastreams tab

Create a new datastream, selecting Newdatastream > VirtualPin

The first data flow we will set is the one relating to the ambient temperature. This can be done by filling in the relevant fields within the dialog, as shown below:

With the same procedure we can also add more datastreams, using the following parameters each of them:

Soil Moisture

Name: Soil moisture
Pin: V1
Data type: Integer
Units: Percentage, %
Min: 0
Max: 100

Illuminance

Name: Illuminance
Pin: V2
Data type: Integer
Units: Lux, lx
Min: 0
Max: 16000

BatteryLevel

Name: Battery level
Pin: V3
Data type: Integer
Units: Percentage, %
Min: 0
Max: 100

Step 1.2 - Configuring the web dashboard

To configure the web dashboard go to the relative tab as shown in the following figure

Then:

Scroll down the widget box on the left
Double click or drag the relative widget on the dashboard (in our case we selected the Gauge widget)

Go into the settings of the widget

Give the widget a name and connect it to its datastream (previously created)

You can repeat this process to add other data representations. At the end of the procedure, the screen will look like this. In our case we have added an additional chart to show the time trend of the temperature.

Step 1.3 - Adding the Agrumino device

Click the Search button on the side of the screen, as shown in the figure

Add the device by clicking on the New Device button

And choose From template

From the relative box select the template you just created and click on Create button

Step 2 - Agrumino setup

Download the code from the link below
Open the file and go to the following lines of code (see figure). These must be modified by taking the relative values from Blynk

To do this, open the device page on Blynk and click on the Device Info tab
Copy the values highlighted in the figure and replace them within the code

To set up the device connection, on the same sketch, go to the following lines of code and fill in the SSID and password fields with your WiFi credentials

As a final step, open the official Arduino IDE and upload the sketch you just modified to the board.
If the procedure was successful, the output on the serial monitor should look like the following

NOTE: To install the Agrumino library on the Arduino IDE or for further problems, see the official Agrumino guide at the following link: Agrumino Dev Guide - rev 0.4_ENG (lifely.cc)

This is an example of what the output on the Blynk page should look like at this point

Conclusions:

This project shows how simple it is to integrate Agrumino through the Blynk IoT platform to obtain constant soil monitoring.

Possible applications, in this sense, could be intelligent irrigation and monitoring systems, aimed at improving the health of our plants.

Agrumino code

#include <Agrumino.h>

#define SLEEP_TIME_SEC 600 //10 minutes

// Comment this out to disable prints and save space
#define BLYNK_PRINT Serial

//Copy this from the blynk website
#define BLYNK_TEMPLATE_ID "template_ID"
#define BLYNK_DEVICE_NAME "TemplateName"
#define BLYNK_AUTH_TOKEN "token"

#include <ESP8266WiFi.h>
#include <BlynkSimpleEsp8266.h>

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "ssid";
char pass[] = "wifi_password";

char auth[] = BLYNK_AUTH_TOKEN;

Agrumino agrumino;

void deepSleepSec(int sec) {
  ESP.deepSleep(sec * 1000000); // microseconds
}

void setup()
{
  // Debug console
  Serial.begin(115200);

  Blynk.begin(auth, ssid, pass);
  // You can also specify server:
  //Blynk.begin(auth, ssid, pass, "blynk.cloud", 80);
  //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8080);

  agrumino.setup();
}

void loop()
{
  Serial.println("#########################\n");

  agrumino.turnBoardOn();

  //Get variables
  float temperature = agrumino.readTempC();
  unsigned int soilMoisture = agrumino.readSoil();
  float illuminance = agrumino.readLux();
  unsigned int batteryLevel = agrumino.readBatteryLevel();

  //Print variables to serial
  Serial.println("");
  Serial.println("temperature:       " + String(temperature) + "C");
  Serial.println("soilMoisture:      " + String(soilMoisture) + "%");
  Serial.println("illuminance :      " + String(illuminance) + " lux");
  Serial.println("batteryLevel :     " + String(batteryLevel) + "%");
  Serial.println("");

  //Collect the variables
  Blynk.virtualWrite(V0, temperature);
  Blynk.virtualWrite(V1, soilMoisture);
  Blynk.virtualWrite(V2, illuminance);
  Blynk.virtualWrite(V3, batteryLevel);
  
  Blynk.run();

  agrumino.turnBoardOff();

  deepSleepSec(SLEEP_TIME_SEC);
}

Credits

Dennis Loi

1 project • 1 follower

Andrea Panzino

1 project • 0 followers

Soil monitoring with Agrumino and Blynk dashboard

Things used in this project

Hardware components

Software apps and online services

Story

Requirements

Step 1 - Blynk basic setup

Step 1.1 - Configuring the datastreams

Step 1.2 - Configuring the web dashboard

Step 1.3 - Adding the Agrumino device

Step 2 - Agrumino setup

Conclusions:

Code

Agrumino code

Credits

Dennis Loi

Andrea Panzino

Comments

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Soil monitoring with Agrumino and Blynk dashboard

Soil monitoring with Agrumino and Blynk dashboard

Things used in this project

Hardware components

Software apps and online services

Story

Requirements

Step 1 - Blynk basic setup

Step 1.1 - Configuring the datastreams

Step 1.2 - Configuring the web dashboard

Step 1.3 - Adding the Agrumino device

Step 2 - Agrumino setup

Conclusions:

Code

Agrumino code

Credits

Dennis Loi

Andrea Panzino

Comments

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