Title
Of
Project:
“Smart Agriculture monitoring moisture by using
a Moisture sensor”
Introduction
How a Moisture sensor does it work?
Moisture is critical for plant growth,
so a soil moisture meter sensor not only aids in keeping vegetables during periods of drought but also helps gardeners
decide when to water, especially when climate change. Expensive professional
meters use a variety of measurement methods, many requiring permanent probes
wired together, but home meters are typically handheld devices utilizing
electrical resistance or water pressure and a digital interface to measure
moisture inside a soil.
In Agriculture Measuring
soil moisture is important for applications in agriculture to help farmers manage their system of irrigation in
a splendid way which is very effective. Knowing the exact soil moisture
conditions on their fields, not only are farmers able to generally useless
water to grow a crop, they are also able to increase yields productions and the quality of the crop by improved
management of soil moisture during critical plant growth stages.
In Research Soil moisture sensors
are used in numerous research applications, e.g. in agriculture for the
Scientific and other domain including irrigation planning,
the research on climate changes, on sciences for the environment, and as auxiliary sensors for the respiration of soil measurements.
For our project of monitoring level
of water in the soil by detecting moisture, we will use the capacitive moisture sensor
and we will upload the data we get on
Ubidot cloud to visualize the change of different states of the soil. The
necessary information is shown in the
slides below:
Image of Capacitive Moisture
Sensor
Image: Capacitive moisture sensor
Material
used to implement on Project
·
Node MCU
·
Capacitive moisture sensor
·
Arduino software of running project
·
Simple
wires male and females for connections
· The platform of Ubidots cloud to visualize data
Table
of Connection on Node MCU Devices
Moisture
Sensor
|
Node
MCU
|
Ground
|
Ground
|
Aout
|
Ao(Analog
pin)
|
Vcc
|
3V
|
Codes
to implement project to Ubidot cloud
#include <ESP8266WiFi.h>
#include <PubSubClient.h>
int WET= 16; // Wet Indicator at Digital PIN D0
int DRY= 2; // Dry
Indicator at Digital PIN D4
int sense_Pin= A0; // Soil Sensor input at Analog PIN A0
int value= 0;
const char* ssid = "ClementRegi4";
const char* password = "44448888";
#define TOKEN "A1E-BgFDEzhAYKGbZJ1q1dpWDS5W36Fklw"
#define MQTT_CLIENT_NAME "Janvier"
#define Variable_label "moisture"
#define device_label "moisture-based-project"
const char* mqttbroker = "things.ubidots.com";
char payload[100];
char topic[50];
WiFiClient espClient;
PubSubClient client(espClient);
//Set-Up WiFi
void setup_wifi() {
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid,
password);
while
(WiFi.status() != WL_CONNECTED)
{
delay(500);
Serial.print(".");
}
randomSeed(micros());
Serial.println("");
Serial.println("WiFi connected");
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
}
void reconnect() {
// Loop until we're
reconnected
while
(!client.connected())
{
Serial.print("Attempting
MQTT connection...");
if
(client.connect(MQTT_CLIENT_NAME,TOKEN,""))
{
Serial.println("connected");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
// Wait 6
seconds before retrying
delay(1000);
}
}
}
void callback(char* topic, byte* payload, unsigned int
length)
{
}
void setup() {
Serial.begin(9600);
pinMode(WET,
OUTPUT);
pinMode(DRY,
OUTPUT);
Serial.println("Moisture
test!");
setup_wifi();
client.setServer(mqttbroker, 1883);
reconnect();
}
void loop() {
client.setCallback(callback);
if
(!client.connected()) {
reconnect();
}
client.loop();
Serial.print("MOISTURE LEVEL : ");
value= analogRead(sense_Pin);
value= value/10;
Serial.println(value);
if(value<50)
{
digitalWrite(WET, HIGH);
}
else
{
digitalWrite(DRY,HIGH);
}
digitalWrite(WET,LOW);
digitalWrite(DRY,
LOW);
Serial.print("Publish a message Moisture:");
int num=value;
char cm[16];
itoa(num,cm,10);
Serial.println(cm);
sprintf(topic,"%s%s","/V1.6/devices/",device_label);
sprintf(payload,"%s","");
sprintf(payload,"{\"%s\":",Variable_label);
sprintf(payload,"%s{\"value\":%s}}",payload,cm);
client.publish(topic,
payload);
delay(3000);
}
Image
photo of Project during Implementation
Data
on serial monitor
Platform result on Connection
of Devices to Ubidots Cloud
For
more info follows:
YouTube channel: IOT Soil Moisture Monitoring
Git
hub name: IotSoilMoistureMonitoring
References
Comments
Post a Comment