/*
  Blink_lp_timer
  Turns on an LED on for one second, then off for one second, repeatedly.
  (c)2018 Forward Computing and Control Pty. Ltd.
  This example code is in the public domain.
*/

#include <lp_timer.h>
// Pin 13 has an LED connected on most Arduino boards, including NanoV2
int led = 13;
bool ledOn = false;
lp_timer ledTimer;
const unsigned long DELAY_TIME = 1000; // ms == 1sec

// the setup routine runs once when you press reset:
void setup() {
  Serial.begin(115200);
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);
  ledTimer.startTimer(DELAY_TIME, handleLedTimer);
  Serial.print("startup() completed at "); Serial.print(millis()); Serial.println("ms");
}

void loop() {
  sleep(); // just sleep here waiting for the timer to trigger
  Serial.print("loop() woke up at "); Serial.print(millis()); Serial.println("ms");
}

void handleLedTimer() {
  ledOn = !ledOn; // toggle state
  if (ledOn) {
    digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
    Serial.println('H');
  } else {
    digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
    Serial.println('L');
  }
}