#include <Timers.h> //  my favorite timer
Timers <4> akcja; // 4  wątki

void setup() {
  Serial.begin(9600,SERIAL_8N1);
  Serial1.begin(9600,SERIAL_8N1);
  Serial1.setDebugOutput(true);
//  pinMode(LED_BUILTIN, OUTPUT);
  Serial.println("test started");
  Serial1.println("xxxxxxx");
  akcja.attach(0, 3000, blinkled);
}

bool wsk2 = 0;
bool wsk1 = 0;
void  blinkled() {
  Serial.print("-");
  wsk2 = !wsk2;
  if (wsk2)wsk1 = !wsk1;

 // digitalWrite(LED_BUILTIN, wsk2);
  //    Serial.println("abcd");

  if (wsk1 == 0) {
    if (wsk2 == 0) {
      Serial1.write(0xBB);
      Serial1.write(0xCC);
      Serial1.write(0x00);
      Serial1.write(0x00);
      Serial1.write(0x00);
      Serial1.write(0x00);
      Serial1.write(0xB4);
      //     Serial.println("1");
    } else  {
      Serial1.write(0xBB);
      Serial1.write(0xCC);
      Serial1.write(0x00);
      Serial1.write(0x01);
      Serial1.write(0x00);
      Serial1.write(0x00);
      Serial1.write(0xDF);
      //     Serial.println("2");
    }
  }


  if (wsk1 == 1) {
    if (wsk2 == 0) {
      Serial1.write(0xBB);
      Serial1.write(0xCC);
      Serial1.write(0x01);
      Serial1.write(0x00);
      Serial1.write(0x00);
      Serial1.write(0x00);
      Serial1.write(0x88);
      //     Serial.println("3");
    } else  {
      Serial1.write(0xBB);
      Serial1.write(0xCC);
      Serial1.write(0x01);
      Serial1.write(0x01);
      Serial1.write(0x00);
      Serial1.write(0x00);
      Serial1.write(0x89);
      //     Serial.println("4");
    }
  }
}
void half_bridge() {
  while (Serial.available() > 0) {
    Serial.write(Serial.read());
    yield();

  }
}

void loop() {
  akcja.process(); //
  half_bridge();

}