My Alarm Clock Won't Beep

Projects General Guidance
1

I made this alarm clock with the TimeAlarms library, and I cannot get the buzzer to beep. I am sure something is wrong with my code, since I'm a noob, so can someone please help me?

(P.S. Ignore the comments, they are from the example sketch I modified this from.)

/*
 * TimeAlarmExample.pde
 *
 * This example calls alarm functions at 8:30 am and at 5:45 pm (17:45)
 * and simulates turning lights on at night and off in the morning
 * A weekly timer is set for Saturdays at 8:30:30
 *
 * A timer is called every 15 seconds
 * Another timer is called once only after 10 seconds
 *
 * At startup the time is set to Jan 1 2011  8:29 am
 */
 
#include <Time.h>
#include <TimeAlarms.h>
int buttonPin = 4;
int buzzerPin = 2;
void setup(){

pinMode(buttonPin, INPUT); 
pinMode(buzzerPin, OUTPUT);


 
  setTime(6,11,0,4,20,16); // set time to Saturday 8:29:00am Jan 1 2011
  // create the alarms 
  Alarm.alarmRepeat(8,30,0, MorningAlarm);  // 8:30am every day
 

          
}

void  loop(){  

if(buttonPin == HIGH){
  digitalWrite(buzzerPin, LOW);
}

}

// functions to be called when an alarm triggers:
void MorningAlarm(){
digitalWrite(buzzerPin, HIGH);    
}

Thanks :smiley:

2

There could be syntax error or your logic would be wrong.

3

If you write a simple sketch with just this in it (in setup() for example) does your buzzer buzz?

#define buzzerPin 2

In setup():
digitalWrite(buzzerPin, HIGH);

That way you know if it's your code or your buzzer. Try that first and post back.

4

The main problem is that you need to call 'Alarm.delay()' in your loop function.
You didn't read the documentation well enough.

Add this inside your 'loop()' function:-Alarm.delay(0);

From the "TimeAlarms" library documentation:-

Normal Running Usage
Alarm.delay(milliseconds);

Alarms and Timers are only checks and their functions called when you use this delay function. You can pass 0 for minimal delay. This delay should be used instead of the normal Arduino delay(), for timely processing of alarms and timers.

Edit: I also just noticed that you set the time incorrectly. You've set it for 6:11am on the 4th day of the 20th month of 2016.
Instead of this:-setTime(6,11,0,4,20,16);try this:-setTime(6,11,0,20,4,16); // Set time to 6:11:00am April 20 2016
Or if you want to set it to 8:29am to test your 8:30am alarm after 1 minute:-setTime(8, 29, 0, 20, 4, 16); // set time to Saturday 8:29:00am Apr 20 2016
Again from the "Time" library documentation:-

setTime(hours, minutes, seconds, days, months, years);