Published May 9, 2020

Water your plants using soil moisture sensor

You can easily water your plants using IOT with the Soil moisture sensor

BeginnerFull instructions provided6,404

Water your plants using soil moisture sensor

Things used in this project

Hardware components

NodeMCU ESP8266 Breakout Board

SparkFun Soil Moisture Sensor (with Screw Terminals)

Breadboard (generic)

Jumper wires (generic)

UTSOURCE Electronic Parts

Software apps and online services

Arduino IDE

Blynk

Story

We all have home gardens at our home. To keep the plants more healthy, we need to water the plants at perfect time at perfect range. Using this Soil moisture sensor with the IOT Technology, You can be able to know the soil moisture and get notification through your Smart phone. When the Soil get enough moisture, you can stop watering your plants.

Through out this Activity you can prevent your plants from excess watering and keep the Soil Moisture from falling into dry condition.

Connection

Nodemcu -> Soil moisture sensor

VV -> Vcc

A0 -> A0

GND -> GND

Thanks UTSOURCE.net to offer electronic components for my projects

for more projects visit here

Code pardt

//for more project visit www.blackkeyhole.com
#define BLYNK_PRINT Serial


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

int sensorpin=A0;
int sensorvalue=0;
int outputvalue=0;

// You should get Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "";

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

void setup()
{
  // Debug console
  Serial.begin(9600);

  Blynk.begin(auth, ssid, pass);
}

void loop()
{
  sensorvalue=analogRead(sensorpin);
  outputvalue=map(sensorvalue,0,1023,0,100); //100,0 pottupaaru
  delay(1000);

  if(outputvalue>74)
  {
       Serial.println("water your plant");
       Serial.print(outputvalue);
       Blynk.notify("water your plant");
       delay(1000); 
  }
  else if(outputvalue<45)
  {
       Serial.println("soil is wet enough to water");
       Serial.print(outputvalue);
       Blynk.notify("soil is wet enough to water");
       delay(1000);
  }
  
  Blynk.virtualWrite(V1,outputvalue);
  Blynk.run();
}