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USB ost DC Comuniction Clas v1.0

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                       [23400|6080]
  I         0- Sting - endsstrig onceCR rceivd
                     2 - acket- sens a pcket trin
  CHO ONOFF            SetLoca Ech ON orOFF
   OF
  HLP o ?            - diplayhelp

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void loop() {
  if (Serial.available() > 0) {
    char in = Serial.read();
    Serial1.write(in);
  }

  if (Serial1.available() > 0) {
    char in = Serial1.read();
    Serial.write(in);
  }
}

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char serialBuffer[100000];
int readcounter = 0;
int command = 0;

#define BTN_PIN     18
#define LED_PIN     13

void setup() {
  // put your setup code here, to run once:

  Serial.begin();
  Serial1.begin(115000);
  pinMode(BTN_PIN, INPUT_PULLUP);  // set button pin as Input
  pinMode(LED_PIN, OUTPUT);        // set LED pin as output
}

void loop() {

  if (command == 0) {
    // Only ask for button if not a command was already sent...
    
    byte buttonState = digitalRead(BTN_PIN);
    
    if (buttonState == LOW) {
      //ButtonPressed

      command = 1;
      digitalWrite(LED_PIN, HIGH); // turn the LED on
      delay(1000);
      Serial1.println("GetVersion");
    }
    else {
      digitalWrite(LED_PIN, LOW);  // turn the LED off
    }
  }
 
  if (Serial1.available() > 0) {
    char in = Serial1.read();
    serialBuffer[readcounter] = in;

    if (serialBuffer[readcounter] == '\x1A')
    {
      // Transmission ends with a CTRL-Z

      Serial.print("Transmission received with ");
      Serial.print(readcounter);
      Serial.println(" bytes:");
      Serial.println("==================");

      for (int i=0;i<readcounter;i++) {
        Serial.write(serialBuffer[i]);
      }
      Serial.println();
      Serial.println("==================");
      readcounter=0;
      command = 0;    // Ready for new Button
      digitalWrite(LED_PIN, LOW);  // turn the LED off
    }
    else {
      readcounter++;
    }
  }
}

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char serialBuffer[100000];

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Serial1.begin(115000);