Test of Arduino MKRFox1200

test_mkrfox.ino

/*
  MKRFox1200 Test: send s counter every 15 min

  Power with 2 AA battery: under 3.18v, avg current is 1.7 ma
*/

#include <ArduinoLowPower.h>
#include <SigFox.h>

// some vars
uint32_t s = 0;


void setup() {
  // init IO
  pinMode(LED_BUILTIN, OUTPUT);
  // fix wakeup interrupt for use with LowPower.sleep()
  LowPower.attachInterruptWakeup(RTC_ALARM_WAKEUP, {}, CHANGE);
  // init Sigfox module
  if (!SigFox.begin()) {
    reboot();
  }
  delay(100);
  SigFox.end();
}

void loop() {
  // second counter
  s++;
  // process jobs
  if (s % 4 == 0 and s < 60)
    led_pulse();
  if (s % 900 == 0)
    sigfox_send();
  // sleep for 1s (work with 500...)
  LowPower.sleep(500);
}

void led_pulse() {
  digitalWrite(LED_BUILTIN, HIGH);
  delay(40);
  digitalWrite(LED_BUILTIN, LOW);
}

void sigfox_send() {
  SigFox.begin();
  delay(100);
  SigFox.beginPacket();
  SigFox.write(s);
  int ret = SigFox.endPacket();
  SigFox.end();
}

void reboot() {
  NVIC_SystemReset();
  while (1);
}