/*
  Blink_lp_timer_GT832E_01
  Turns on an 'led' on/off at 10Hz
  (c)2022 Forward Computing and Control Pty. Ltd.
  This example code is in the public domain.
*/
#include <lp_timer.h>
int led = 4; // Use D4 (P0.29) has the 'led' pin
bool ledOn = false;
lp_timer ledTimer;
const unsigned long DELAY_TIME = 50; // ms == 10Hz

// the setup routine runs once when you press reset:
void setup() {
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);
  ledTimer.startTimer(DELAY_TIME, handleLedTimer);
}

void loop() {
  sleep(); // just sleep here waiting for the timer to trigger
}

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