#define BLYNK_TEMPLATE_ID "TMPL3rL23n-Hj"
#define BLYNK_TEMPLATE_NAME "Home Automation"
#define BLYNK_AUTH_TOKEN "y_mjhEkvMeMYnZdykVgpWYqRjH96ZF3i"
// Comment this out to disable prints and save space
#define BLYNK_PRINT Serial
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
char auth[] = BLYNK_AUTH_TOKEN;
// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
BlynkTimer timer;
#define button1_pin 26
#define button2_pin 25
#define button3_pin 33
#define button4_pin 32
#define relay1_pin 13
#define relay2_pin 12
#define relay3_pin 14
#define relay4_pin 27
int relay1_state = 0;
int relay2_state = 0;
int relay3_state = 0;
int relay4_state = 0;
//Change the virtual pins according the rooms
#define button1_vpin V1
#define button2_vpin V2
#define button3_vpin V3
#define button4_vpin V4
//------------------------------------------------------------------------------
// This function is called every time the device is connected to the Blynk.Cloud
// Request the latest state from the server
BLYNK_CONNECTED() {
Blynk.syncVirtual(button1_vpin);
Blynk.syncVirtual(button2_vpin);
Blynk.syncVirtual(button3_vpin);
Blynk.syncVirtual(button4_vpin);
}
//--------------------------------------------------------------------------
// This function is called every time the Virtual Pin state change
//i.e when web push switch from Blynk App or Web Dashboard
BLYNK_WRITE(button1_vpin) {
relay1_state = param.asInt();
digitalWrite(relay1_pin, relay1_state);
}
//--------------------------------------------------------------------------
BLYNK_WRITE(button2_vpin) {
relay2_state = param.asInt();
digitalWrite(relay2_pin, relay2_state);
}
//--------------------------------------------------------------------------
BLYNK_WRITE(button3_vpin) {
relay3_state = param.asInt();
digitalWrite(relay3_pin, relay3_state);
}
//--------------------------------------------------------------------------
BLYNK_WRITE(button4_vpin) {
relay4_state = param.asInt();
digitalWrite(relay4_pin, relay4_state);
}
//--------------------------------------------------------------------------
void setup()
{
// Debug console
Serial.begin(115200);
//--------------------------------------------------------------------
pinMode(button1_pin, INPUT_PULLUP);
pinMode(button2_pin, INPUT_PULLUP);
pinMode(button3_pin, INPUT_PULLUP);
pinMode(button4_pin, INPUT_PULLUP);
//--------------------------------------------------------------------
pinMode(relay1_pin, OUTPUT);
pinMode(relay2_pin, OUTPUT);
pinMode(relay3_pin, OUTPUT);
pinMode(relay4_pin, OUTPUT);
//--------------------------------------------------------------------
//During Starting all Relays should TURN OFF
digitalWrite(relay1_pin, HIGH);
digitalWrite(relay2_pin, HIGH);
digitalWrite(relay3_pin, HIGH);
digitalWrite(relay4_pin, HIGH);
//--------------------------------------------------------------------
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);
//--------------------------------------------------------------------
//Blynk.virtualWrite(button1_vpin, relay1_state);
//Blynk.virtualWrite(button2_vpin, relay2_state);
//Blynk.virtualWrite(button3_vpin, relay3_state);
//Blynk.virtualWrite(button4_vpin, relay4_state);
//--------------------------------------------------------------------
}
void loop()
{
Blynk.run();
timer.run();
// You can inject your own code or combine it with other sketches.
// Check other examples on how to communicate with Blynk. Remember
// to avoid delay() function!
listen_push_buttons();
}
//MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
void listen_push_buttons(){
//--------------------------------------------------------------------------
if(digitalRead(button1_pin) == LOW){
delay(200);
control_relay(1);
Blynk.virtualWrite(button1_vpin, relay1_state); //update button state
}
//--------------------------------------------------------------------------
else if (digitalRead(button2_pin) == LOW){
delay(200);
control_relay(2);
Blynk.virtualWrite(button2_vpin, relay2_state); //update button state
}
//--------------------------------------------------------------------------
else if (digitalRead(button3_pin) == LOW){
delay(200);
control_relay(3);
Blynk.virtualWrite(button3_vpin, relay3_state); //update button state
}
//--------------------------------------------------------------------------
else if (digitalRead(button4_pin) == LOW){
delay(200);
control_relay(4);
Blynk.virtualWrite(button4_vpin, relay4_state); //update button state
}
//--------------------------------------------------------------------------
}
//MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
//MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
void control_relay(int relay){
//------------------------------------------------
if(relay == 1){
relay1_state = !relay1_state;
digitalWrite(relay1_pin, relay1_state);
Serial.print("Relay1 State = ");
Serial.println(relay1_state);
delay(50);
}
//------------------------------------------------
else if(relay == 2){
relay2_state = !relay2_state;
digitalWrite(relay2_pin, relay2_state);
delay(50);
}
//------------------------------------------------
else if(relay == 3){
relay3_state = !relay3_state;
digitalWrite(relay3_pin, relay3_state);
delay(50);
}
//------------------------------------------------
else if(relay == 4){
relay4_state = !relay4_state;
digitalWrite(relay4_pin, relay4_state);
delay(50);
}
//------------------------------------------------
}
//MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM