MKR1000 Wake Up

application.ino

void runApplication() {
  heartbeat();

  WiFi.noLowPowerMode();
  while(WiFi.status() != WL_CONNECTED){
    WiFi.begin(ssid, pass);
    heartbeat();
  }
  
  char buff[10];
  char* msg = ltoa(WiFi.RSSI(), buff, 10);
  displayMessage(msg);

  WiFi.end();
}

application2.ino

void runApplication() {
  heartbeat();

  WiFi.noLowPowerMode();
  while(WiFi.status() != WL_CONNECTED){
    WiFi.begin(ssid, pass);
    heartbeat();
  }
  
  char buff[10];
  char* msg = ltoa(WiFi.RSSI(), buff, 10);
  displayMessage(msg);
  executeGet(IPAddress(185,158,80,20), "api.hnb.hr", "/tecajn/v1?valuta=EUR");

  WiFi.end();
}

functions.ino

void heartbeat(){
  digitalWrite(LED_BUILTIN, HIGH);
  delay(100);
  digitalWrite(LED_BUILTIN, LOW);
  delay(500); 
  digitalWrite(LED_BUILTIN, HIGH);
  delay(100);
  digitalWrite(LED_BUILTIN, LOW);
  delay(500); 
}

void displayMessage(String msg){
  Serial.println(msg);
}

functions2.ino

void heartbeat(){
  digitalWrite(LED_BUILTIN, HIGH);
  delay(100);
  digitalWrite(LED_BUILTIN, LOW);
  delay(500); 
  digitalWrite(LED_BUILTIN, HIGH);
  delay(100);
  digitalWrite(LED_BUILTIN, LOW);
  delay(500); 
}

void displayMessage(String msg){
  Serial.println(msg);
}

void executeGet(IPAddress ip, String host, String url){
  if (client.connect(ip, 80)) {
    Serial.println("### Connected");
    client.println("GET " + url);
    client.println("Host: " + host);
    client.println("Connection: close");
    client.println();
  }
  
  Serial.println("###");  
  while (client.available()) {
    char c = client.read();
    Serial.write(c);
  }

  if (!client.connected()) {
    Serial.println();
    while (true);
  }
}

mkr1000_wake_up.ino

#include <SPI.h>
#include <WiFi101.h>
#include <RTCZero.h>

const byte year = 2019;
const byte month = 12;
const byte day = 2;

byte wakeupHours = 0;
byte wakeupMinutes = 0;
byte wakeupSeconds = 5;

const String ssid = "";
const String pass = "";

RTCZero rtc;
WiFiClient client;
bool alarm = false;

void triggerAlarm(){
  alarm = true;
}

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, LOW);
  
  rtc.begin();
  rtc.setDate(day, month, year);
  rtc.setTime(0,0,0);

  rtc.setAlarmTime(wakeupHours, wakeupMinutes, wakeupSeconds);
  rtc.enableAlarm(rtc.MATCH_HHMMSS);

  rtc.attachInterrupt(triggerAlarm);  
}

void loop() {
  if(alarm){
    alarm = false;
    
    runApplication();
    
    rtc.setTime(0,0,0);
    rtc.setAlarmTime(wakeupHours, wakeupMinutes, wakeupSeconds);
  }
}