Esp32_LedBlink_Using_Blynk2.0_App

 Circuit Diagram :-

How To Install Blynk2.0 App :- 

  App Link :-     Blank App

Step 1 :-

Step 2 :- 

Step 3 :- 

Github Profile :- Link

Code :- 

//Prateek //www.prateeks.in //https://www.youtube.com/c/JustDoElectronics #define BLYNK_TEMPLATE_ID "TMPLjOi0Rz-W" #define BLYNK_DEVICE_NAME "esp32" #define BLYNK_AUTH_TOKEN "UF3ok0_l0VkhTDS-WD1gWZ65DdhnHpwx" // 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[] = "prateeksingh"; char pass[] = "singh@@12345"; BlynkTimer timer; #define button1_pin 5 #define button2_pin 10 #define button3_pin 19 #define button4_pin 21 #define led1_pin 13 #define led2_pin 14 #define led3_pin 26 #define led4_pin 33 int led1_state = 0; int led2_state = 0; int led3_state = 0; int led4_state = 0; #define button1_vpin V1 #define button2_vpin V2 #define button3_vpin V3 #define button4_vpin V4 BLYNK_CONNECTED() { Blynk.syncVirtual(button1_vpin); Blynk.syncVirtual(button2_vpin); Blynk.syncVirtual(button3_vpin); Blynk.syncVirtual(button4_vpin); } BLYNK_WRITE(button1_vpin) { led1_state = param.asInt(); digitalWrite(led1_pin, led1_state); } BLYNK_WRITE(button2_vpin) { led2_state = param.asInt(); digitalWrite(led2_pin, led2_state); } BLYNK_WRITE(button3_vpin) { led3_state = param.asInt(); digitalWrite(led3_pin, led3_state); } BLYNK_WRITE(button4_vpin) { led4_state = param.asInt(); digitalWrite(led4_pin, led4_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(led1_pin, OUTPUT); pinMode(led2_pin, OUTPUT); pinMode(led3_pin, OUTPUT); pinMode(led4_pin, OUTPUT); digitalWrite(led1_pin, HIGH); digitalWrite(led2_pin, HIGH); digitalWrite(led3_pin, HIGH); digitalWrite(led4_pin, HIGH); Blynk.begin(auth, ssid, pass); } void loop() { Blynk.run(); timer.run(); listen_push_buttons(); } void listen_push_buttons(){ if(digitalRead(button1_pin) == LOW){ delay(200); control_led(1); Blynk.virtualWrite(button1_vpin, led1_state); //update button state } else if (digitalRead(button2_pin) == LOW){ delay(200); control_led(2); Blynk.virtualWrite(button2_vpin, led2_state); //update button state } else if (digitalRead(button3_pin) == LOW){ delay(200); control_led(3); Blynk.virtualWrite(button3_vpin, led3_state); //update button state } else if (digitalRead(button4_pin) == LOW){ delay(200); control_led(4); Blynk.virtualWrite(button4_vpin, led4_state); //update button state } } void control_led(int led){ if(led == 1){ led1_state = !led1_state; digitalWrite(led1_pin, led1_state); Serial.print("led1 State = "); Serial.println(led1_state); delay(50); } else if(led == 2){ led2_state = !led2_state; digitalWrite(led2_pin, led2_state); delay(50); } else if(led == 3){ led3_state = !led3_state; digitalWrite(led3_pin, led3_state); delay(50); } else if(led == 4){ led4_state = !led4_state; digitalWrite(led4_pin, led4_state); delay(50); } }

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