esp_NANO__2

#include <Timers.h> //  my favorite timer
Timers <4> akcja; // 4  wątki
#define led_green 7
#define led_red   8 // na D8

//>>>>>>>>>>>>>>>>>>> my Programs

void Program_vPin0(String strvPin) { // blink led from ESP timer
  digitalWrite(led_red, intfromstr(strvPin));
}
//etc ...

void Program_vPin29(String strvPin) {
}

//from APP to NANO   >>>>>>>>>>>>>>>>
// equivalent BLYNK_WRITE(VPin)

void Blynkwrite(String str2) {

  String istr = str2.substring(1, str2.indexOf(':')); // nr vPin
  byte pin2 = istr.toInt();
  String  strdata2 = str2.substring(str2.indexOf(':') + 1); // if nr vPin typ int
  int  data2 = strdata2.toInt();

  if (str2.charAt(0) == 'V') {

    switch (pin2 + 1) { // Switch to progrma for recived vPin
      case 1: Program_vPin0(strdata2);  break;
      // etc....
      case 30: Program_vPin29(strdata2);  break;
      default: ;
    }
  }
}

// equivalent   Blynk.virtualWrite(VPin, Data);

void BlynkvirtualWrite_str (byte vPin, String z) { // send str to APP
  String  str1 = 'S' + String(vPin) + ':' + z;
  sendstrtoserial(str1);
}

void BlynkvirtualWrite_int (byte vPin, int z)  { // send int to APP
  String  str1 = 'I' + String(vPin) + ':' + String(z);
  sendstrtoserial(str1);
}

void BlynkvirtualWrite_led(byte vPin, byte Value) { // send LEDs data to APP
  String  str1 = 'L' + String(vPin) + ':' + String(Value);
  sendstrtoserial(str1);
}

void BlynkvirtualWrite_col(byte vPin, String col) { // send color data to APP
  String  str1 = 'C' + String(vPin) + ':' + col;
  sendstrtoserial(str1);
}

void BlynkvirtualWrite_On(byte vPin, String ON) { // send onLabel data to APP
  String  str1 = 'N' + String(vPin) + ':' + ON;
  sendstrtoserial(str1);
}
void BlynkvirtualWrite_Off(byte vPin, String OFF) { // send offLabel data to APP
  String  str1 = 'F' + String(vPin) + ':' + OFF;
  sendstrtoserial(str1);
}

int intfromstr(String str) {
  String    strdata3 = str.substring(str.indexOf(':') + 1); // if nr vPin typ int
  return strdata3.toInt();
}

// ....................................... recive string from serial

bool  stringComplete = false;
String inputString = "";
byte licznikodbioru = 0;
int startrecive = 0;

void recivestrfromserial () {
  if (stringComplete) {
    Serial.println("od  " + String(inputString)); //test
    Blynkwrite(inputString);
    inputString = "";
    stringComplete = false;
    licznikodbioru = 0;
    startrecive = 0;
  }
}

void serialEvent() { //odbiór string z Serial
  if (Serial.available()) {
    licznikodbioru++;
    char inChar = (char)Serial.read();
    if (startrecive == 0) {
      if ((inChar == 'V'))  startrecive = 1;
    }
    if (startrecive == 1) {
      if (inChar == '\r')  {
        stringComplete = true;
        inChar = '\0';
        inputString += inChar;
        startrecive = 0;
      } else  inputString += inChar;
    }
    if (licznikodbioru > 50) inputString = "";
  }
}

// ................................. send string to serial
void sendstrtoserial (String toserial) {
  Serial.println(toserial);
}

void setup()
{
  pinMode(led_red, OUTPUT);
  pinMode(led_green, OUTPUT);
  akcja.attach(0, 5000, timer1sek); //  1 sek

  Serial.begin(115200);  //
}
void loop()
{
  akcja.process(); //
  recivestrfromserial();
}

void timer1sek() { //test
  blinkLedgreen(); // blink led on NANO
  blinkvLed(); //blink vLed from NANO
  blinkvLed2(); //blink vLed from NANO
}

bool flagaled = 0;
void blinkLedgreen() { //test
  flagaled = !flagaled;
  digitalWrite(led_green, flagaled);
}
int x = 0;

void blinkvLed() { //for test
  if (flagaled)   BlynkvirtualWrite_led(3, 255); else    BlynkvirtualWrite_led(3, 0);
  x++;
  BlynkvirtualWrite_int(7, x);

}
void blinkvLed2() { //for test
  String col1 = "#FF0000";
  String col2 = "#00FF00";
  if (flagaled)   BlynkvirtualWrite_led(4, 255); else    BlynkvirtualWrite_led(4, 0);
  if (flagaled)   BlynkvirtualWrite_col(5, col1); else    BlynkvirtualWrite_col(5, col2);
  if (flagaled)   BlynkvirtualWrite_Off(5, "UP"); else    BlynkvirtualWrite_Off(5, "DOWN");
}