Merge pull request #8 from hakierspejs/watchdog

Add watchdog

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "vendor/librares/Watchdog"]
+ path = vendor/librares/Watchdog
+ url = [email protected]:janelia-arduino/Watchdog.git

hsldz_totp_lock/hsldz_totp_lock.ino

@@ -4,7 +4,8 @@
 #include <DS3231.h>
 #include <Wire.h> 
 #include <Eeprom24C32_64.h> 
-#include <Eeprom24C04_16.h> 
+#include <Eeprom24C04_16.h>
+#include <Watchdog.h>
 
 
 #define BUZZER_PIN 10
@@ -49,6 +50,7 @@ Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS
 // RTC 
 RTClib RTC;
 
+Watchdog watchdog;
 
 
 const bool morseKeys[10][5] = {
@@ -92,12 +94,14 @@ String userInputPrev = "";
 
 
 void setup(){
+ watchdog.reset();
  Serial.begin(9600);
  Wire.begin();
  eeprom.initialize();
  pinMode(BUTTON_OPEN_PIN, INPUT);
  pinMode(BUZZER_PIN, OUTPUT);
  pinMode(LOCK_PIN, OUTPUT);
+ watchdog.enable(Watchdog::TIMEOUT_8S);
  int size = sizeof(melodyMain) / sizeof(int);
  playMaintenanceMelody(melodyMain, size);
 }
@@ -111,6 +115,7 @@ void echo_morse_reversed_int(unsigned long value) {
  // Serial.println(digit);
  delay(MORSE_SOUND_TIME * MORSE_PAUSE); 
  for(int i =0; i < 5; i++ ) { 
+ watchdog.reset();
  if (morseKeys[digit][i]) {
  tone(BUZZER_PIN, MORSE_FREQ, MORSE_SOUND_TIME);
  delay(MORSE_SOUND_TIME + MORSE_SOUND_TIME); 
@@ -263,6 +268,7 @@ void buzz(int targetPin, long frequency, long length) {
 void playMaintenanceMelody(int melody[], int size) {
  int melodyPin = BUZZER_PIN;
  for (int thisNote = 0; thisNote < size; thisNote++) {
+ watchdog.reset();
  // to calculate the note duration, take one second
  // divided by the note type.
  //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
@@ -349,7 +355,7 @@ void makeMaintenance(String userInputPrev) {
 
 
 void loop(){
-
+ watchdog.reset();
  digitalWrite(LOCK_PIN, LOW); 
  boolean openButtonIsDown = digitalRead(BUTTON_OPEN_PIN);
  if (openButtonIsDown) {
@@ -359,6 +365,7 @@ void loop(){
  int limit = 7;
  int press_counter = 0;
  for (int i = 0; i < iterations; i++) { 
+ watchdog.reset();
  tone(BUZZER_PIN, FREQ_OPEN_BUTTON_PRESS, timeout - 10);
  delay(timeout); 
  if (digitalRead(BUTTON_OPEN_PIN) == HIGH) {
@@ -374,6 +381,7 @@ void loop(){
 
  char customKey = customKeypad.getKey();
  if (customKey){
+ watchdog.reset();
  tone(BUZZER_PIN, FREQ_BUTTON_PRESS, SOUND_TIME_BUTTON_PRESS);
  if (customKey == '*') {
  userInput = "";