Syncing Blynk Apps GPIO status to hardware gpio status

[k3nn3th]

I have setup an esp8266 to communicate to a gsm800l to control 3 leds. I can control the LED on/off state either via M SMS text message or via the blynk app. However, If I change the LED status via SMS, the state of the LED in the blynk app is not updated or sync. Below code is how I set it up.

What code needs to be added so that the LED on/off state in the blynk app reflects the hardware gpio states when it is changed via SMS.

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

#define BLYNK_PRINT Serial1
#define gsm_buff_size 256

char gsm_data_ready;
char gsm_buff[gsm_buff_size];

char auth_mobile_01[13];
char auth_mobile_02[13];
char auth_mobile_03[13];
char auth_mobile_04[13];
char auth_mobile_05[13];

char auth[] = "************************";
char ssid[] = "*************";
char pass[] = "******************";

int redLED = 12;    // D5, GPIO12
int yellowLED = 4;  // D2, GPIO4
int greenLED = 5;   // D1, GPIO5

void setup(void) {

  pinMode(redLED, OUTPUT);
  pinMode(yellowLED, OUTPUT);
  pinMode(greenLED, OUTPUT);

  digitalWrite(greenLED , LOW);
  digitalWrite(yellowLED , LOW);
  digitalWrite(redLED , LOW);
    
  Serial.begin(115200);
  delay(100);

  Serial.swap();
  delay(100);

  Serial.setTimeout(100);
  delay(100);
  
  Serial1.begin(115200);
  delay(100);
      
  Serial1.println(F("\r\n"));
  Serial1.println(F("Serial 0 port initilized at 115200 baud"));
  Serial1.println(F("Serial 1 port initilized at 115200 baud"));
  Serial1.print(F("\r\n"));
  
  Serial1.println(F("Setting up the GSM modem"));
  
  Serial1.println(F("[ESP]---| AT |-->[Sim800L]"));
  Serial.println("AT");
  delay(50);
  Check_Serial_Data();
  if (received_OK()){
    Serial1.println(F("[ESP]<--| OK |---[Sim800L]")); 
  }

  Serial1.println(F("[ESP]---| ATE0 |-->[Sim800L]"));
  Serial.println("ATE0");
  delay(50);
  Check_Serial_Data();
  if (received_OK()){
    Serial1.println(F("[ESP]<--| OK |---[Sim800L]")); 
  }

  Serial1.println(F("[ESP]---| AT+CMGF=1 |--->[Sim800L]"));
  clear_gsm_buffer();
  Serial.println("AT+CMGF=1");
  delay(50);
  Check_Serial_Data();
  if (received_OK()){
    Serial1.println(F("[ESP]<--| OK |---[Sim800L]")); 
  }

  Serial1.println(F("[ESP]---| AT&W |--->[Sim800L]"));
  clear_gsm_buffer();
  Serial.println("AT&W");
  delay(50);
  Check_Serial_Data();
  if (received_OK()){
    Serial1.println(F("[ESP]<--| OK |---[Sim800L]")); 
  }

  Blynk.begin(auth, ssid, pass);
  
  Serial1.println(F("Going to the main loop")); 
}  

[gcjr]

unless someone is familiar with your Blynk app, i think people will need to see you complete code