#WioTerminal – Open / Close the #DigitalTwin Door 🚪 using Wio Terminal buttons and Azure IoT ☁️ + Azure Functions ⚡

void setup() {
  Serial.begin(115200);
  // init buttons
  Serial.println("Init buttons");  
  pinMode(WIO_KEY_A, INPUT_PULLUP);
  pinMode(WIO_KEY_B, INPUT_PULLUP);
  pinMode(WIO_KEY_C, INPUT_PULLUP);
}

void loop(){

  if (digitalRead(WIO_KEY_A) == LOW) 
  { 
    Serial.println("[A] open door");  
  }
  if (digitalRead(WIO_KEY_B) == LOW) 
  { 
    Serial.println("[B ] close door");     
  }
  if (digitalRead(WIO_KEY_C) == LOW) 
  {
    Serial.println("[C] refresh");     
  }  
}

void validateWioButtons(){

  if (digitalRead(WIO_KEY_A) == LOW) 
  { 
    Serial.println("Button A Pressed, open door");     
    url = urlOpen;
    performHttpPost = true;
  }
  if (digitalRead(WIO_KEY_B) == LOW) 
  { 
    Serial.println("Button B Pressed, close door");     
    url = urlClose;
    performHttpPost = true;
  }
  if (digitalRead(WIO_KEY_C) == LOW) 
  {
    Serial.println("[C] refresh");     
    lastTime = 0;
  }  

  // validate last time http post call  
  if ((millis() - lastTimeHttpPost ) > timerDelayHttpPost) {  
    if(performHttpPost == true){    
      performHttpPost = false;      
    
      http.end();  
      http.setTimeout(3000);  
      http.begin(url);
    
      int httpResponseCode = http.POST();
     
      if (httpResponseCode>0) {
        Serial.print("HTTP Response code: ");
        Serial.println(httpResponseCode);
      }
      else {
        Serial.print("Error code: ");
        Serial.println(httpResponseCode);
      }
      // Free resources
      http.end();
      lastTime = 0;
    }

    // update last time http post call
    lastTimeHttpPost = millis();
    performHttpPost = false;
  }
}