This is complete prototype of Development of an Intelligent Solar Powered Watering System. And i will show complete coding for this program.
// include your ESP library here
// and other blynk widget
#include <BlynkSimpleEsp8266.h>
#include <SoftwareSerial.h>
#include <ESP8266WiFi.h>
#include <SPI.h>
#include <DHT.h>
// Auth Token in the Blynk App.
// Go to the Project Settings (nut icon).
char auth[] = "554d6e1520e64e33b8924af9eb66423d";
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Adam Jasman";
char pass[] = "qwertyuiop";
#define DHTPIN 5
// what pin we're connected to
#define DHTTYPE DHT22
// DHT 22 (AM2302)
DHT dht(DHTPIN, DHTTYPE);
int sensorData;
int threshold;
SimpleTimer timer; // allocate a name (mytimer) to the timer
int selectmode; //Select Mode for Auto or Manual
int button2; //Manual Blynk Case 1 ONOFF
int timer2; //Manual Blynk
int timer3; //Auto Blynk
int val; //sensor
int morning;
int night;
//Configuration of the widges used at the Blynk panel in the
mobile
WidgetLED led1(V1); //virtual led Blynk for Motor 1
WidgetLED led4(V7); //virtual led Blynk for Auto Mode
WidgetLED led5(V8); //virtual led Blynk for Manual Mode
WidgetLED led6(V0); //virtual led Blynk for sensor 1
void setup()
{
Serial.begin(115200);
// Set ESP8266 baud rate
Blynk.begin(auth, ssid, pass); // Here your Arduino connects
to the Blynk Cloud.
//declare sensor dht
pinMode(5,INPUT);
//Motor
pinMode(14,OUTPUT);
//Sensor
pinMode(A0,INPUT);
dht.begin();
}
void loop()
{
// Reading temperature or humidity takes about 250
milliseconds!
// Sensor readings may also be up to 2 seconds 'old' (its a
very slow sensor)
float h = dht.readHumidity();
// Read temperature as Celsius
float t = dht.readTemperature();
// Check if any reads failed and exit early (to try again).
if (isnan(h) || isnan(t))
{
Serial.println("Failed to read from DHT sensor!");
return;
}
Blynk.virtualWrite(V0,t);
Blynk.virtualWrite(V3,h);
Blynk.run(); // Initiates Blynk
timer.run(); // call the simple timer routine
}
void Timer()
{
if(night||morning==1 && selectmode==0)
{
Auto();
Blynk.email("adam.sumax@gmail.com", "Subject:
Plant Watering System", "Adam watering ur plant...");
Blynk.notify("automation watering alert - Siram");
}
}
void Auto()
{
val = analogRead(A0);
if(val<threshold) //if sensor 1 high
{
digitalWrite(14,LOW);
led1.on(); // led Motor 1 blynk on
led6.off(); // led Sensor 1 blynk on
}
else
{
digitalWrite(14,HIGH);
led1.off(); // Led Motor 1 blynk off
led6.on(); // led Sensor 1 blynk off
}
}
void Manual()
{
if(button2==1&&selectmode==1)
{
digitalWrite(14,LOW);//Motor 1 On
led1.on(); // light 1 blynk on
}
else
{
digitalWrite(14,HIGH);//Motor 1 Off
led1.off(); // light
1 blynk off
}
}
BLYNK_WRITE(V2){ //
add a slider to your project on V0 range 0 to 30 (minutes)
threshold =
param.asInt(); // set variable as Slider
value
}
BLYNK_WRITE(V5)
{
// You'll get HIGH/1
at startTime and LOW/0 at stopTime.
// this method will
be triggered every day
// until you remove
widget or stop project or
// clean stop/start
fields of widget
night = param.asInt();
}
BLYNK_WRITE(V9) // Case 1 ONOFF
{
button2 =
param.asInt(); // Get the state of the VButton for Case 1 ONOFF
}
// Sets btnPin HIGH or LOW depending on state of Button
Widget
BLYNK_WRITE(V6) //Select Mode
{
selectmode = param.asInt(); // Get the state of the VButton
for selectmode
if(selectmode ==1){
timer.disable(timer3); // Disables the timer3
led5.on(); //
light 5 blynk on
led4.off(); //
light 4 blynk off
timer2=timer.setInterval(1000L, Manual); // Setup a function to be called every 1000
ms
}
else
{
timer.disable(timer2); //Disables the timer2
led4.on(); // light
4 blynk on
led5.off(); //
light 5 blynk off
timer3=timer.setInterval(1500, Timer); // Setup a function to be called
every 1500 ms
}
}
BLYNK_CONNECTED()
{
Blynk.syncVirtual(V6); //Select Mode
Blynk.syncVirtual(V9); // Case 1 ONOFF
Blynk.syncVirtual(V5); //Select Mode
Blynk.syncVirtual(V10); // Case 1 ONOFF
Blynk.syncVirtual(V6);
//Select Mode
Blynk.syncVirtual(V2); // Case 1 ONOFF
