Automatic School Bell

[youssef_b]

Hi guys,
I made an automated school bell using a code that I found online. I made some changes, but I need help to make the bell ring only when the push button (Bell Button) is clicked and when it's released, the bell turns off.

#include<EEPROM.h>
#include <Wire.h>
#include <TimeLib.h>
#include <DS1307RTC.h>
#include <LiquidCrystal.h>
LiquidCrystal lcd(9, 8, 7, 6, 5, 4);
byte grados[8] = {
  B00110, 
  B01001,  
  B01001, 
  B00110, 
  B00000, 
  B00000, 
  B00000, 
  B00000,
};

byte flechas[8] = {
  B00100,
  B01110,
  B11111,
  B00000,
  B00000,
  B11111,
  B01110, 
  B00100,
};

byte fanOn[8] = {
  B00100,
  B10101,
  B01110,
  B11111,
  B01110,
  B10101,
  B00100,
  B00000,
};

byte fanOff[8] = {
  B01110,
  B10001,
  B10001,
  B10001,
  B10001,
  B10001,
  B01110,
  B00000,
};

byte barra[8] {
  B11111,
  B11111,
  B11111,
  B11111,
  B11111,
  B11111,
  B11111,
  B11111,  
};
int i = 0;
int H = 0;
int M = 0;
int S = 0;
int setting_value;
const int bell = 10;
const int P = A3;
const int N = A2;
const int setting_address = 0;
const int over_ride_off = 11;
boolean bell_status = true;
boolean Over_ride = true;
//------------------- Set Bell Timings from hours 1 to 23 hrs -------------------//
//---- 1st bell ------//
const int h1 = 20; //hours
const int m1 = 52; //Minutes
//---- 2nd bell ------//
const int h2 = 7;
const int m2 = 54;
//---- 3rd bell ------//
const int h3 = 8;
const int m3 = 55;
//---- 4th bell ------//
const int h4 = 9;
const int m4 = 0;
//---- 5th bell ------//
const int h5 = 9;
const int m5 = 55;
//---- 6th bell ------//
const int h6 = 10;
const int m6 = 5;
//---- 7th bell ------//
const int h7 = 11;
const int m7 = 0;
//---- 8th bell ------//
const int h8 = 11;
const int m8 = 5;
//---- 9th bell ------//
const int h9 = 12;
const int m9 = 0;
//---- 10th bell ------//
const int h10 = 13;
const int m10 = 45;
//---- 11th bell ------//
const int h11 = 14;
const int m11 = 0;
//---- 12th bell ------//
const int h12 = 14;
const int m12 = 55;
//---- 13th bell ------//
const int h13 = 15;
const int m13 = 0;
//---- 14th bell ------//
const int h14 = 15;
const int m14 = 55;
//---- 15th bell ------//
const int h15 = 16;
const int m15 = 5;
//---- 16th bell ------//
const int h16 = 17;
const int m16 = 0;
//--------------- bell ring lenght in seconds -------//
const int Lenght = 3; //in seconds
//-------------------------- -------------------------//
void setup()
{
  // On définit le nombre de colonnes et de lignes du LCD (16 caractères par ligne, 2 lignes)
// La fonction suivante permet d'afficher un message initial.
 // créer des personnages
  Serial.begin(9600);
  lcd.begin(16,2);
  lcd.createChar(0, grados);
  lcd.createChar(1, flechas);
  lcd.createChar(2, fanOn);
  lcd.createChar(3, fanOff);
  lcd.createChar(4, barra);

//l'initialisation de la barre de progression donne le temps au capteur de se stabiliser
  lcd.setCursor(0,0);
  lcd.print("College--Tazarka");
  for (int i = 0; i <= 15; i++) {
    lcd.setCursor(i, 1);
    lcd.write((byte)4);
    delay(100);  
  }
  delay(500);
  lcd.clear();
  delay(500);

  
  //progress Bar fin
lcd.begin(16, 2);
pinMode(P, OUTPUT);
pinMode(N, OUTPUT);
pinMode(bell, OUTPUT);
pinMode(over_ride_off, INPUT);
digitalWrite(P, HIGH);
digitalWrite(N, LOW);
digitalWrite(over_ride_off, HIGH);
attachInterrupt(0, over_ride, RISING);
attachInterrupt(1, bell_setting, RISING);
if (EEPROM.read(setting_address) != 1)
{
bell_setting();
}
}
void loop()
{
tmElements_t tm;
lcd.clear();
if (RTC.read(tm))
{
H = tm.Hour;
M = tm.Minute;
S = tm.Second;
lcd.setCursor(0, 0);
lcd.print("TIME:");
lcd.print(tm.Hour);
lcd.print(":");
lcd.print(tm.Minute);
lcd.print(":");
lcd.print(tm.Second);
lcd.setCursor(0, 1);
lcd.print("DATE:");
lcd.print(tm.Day);
lcd.print("/");
lcd.print(tm.Month);
lcd.print("/");
lcd.print(tmYearToCalendar(tm.Year));
} else {
if (RTC.chipPresent())
{
lcd.setCursor(0, 0);
lcd.print("RTC stopped!!!");
lcd.setCursor(0, 1);
lcd.print("Run SetTime code");
} else {
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Read error!");
lcd.setCursor(0, 1);
lcd.print("Check circuitry!");
}
}
if (EEPROM.read(setting_address) == 1)
{
if (H == 0 && M == 0 && S == 0)
{
digitalWrite(bell, LOW);
}
if (H == h1 && M == m1 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h2 && M == m2 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h3 && M == m3 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h4 && M == m4 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h5 && M == m5 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h6 && M == m6 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h7 && M == m7 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h8 && M == m8 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h9 && M == m9 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h10 && M == m10 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h11 && M == m11 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h12 && M == m12 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h13 && M == m13 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h14 && M == m14 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h15 && M == m15 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
if (H == h16 && M == m16 && S == 0)
{
for (i = 0; i < Lenght; i++)
{
digitalWrite(bell, HIGH);
delay(1000);
}
digitalWrite(bell, LOW);
i = 0;
}
}
delay(1000);
}
void over_ride()
{
lcd.clear();
while (Over_ride)
{
digitalWrite(bell, HIGH);
lcd.setCursor(0, 0);
lcd.print("Press Exit to");
lcd.setCursor(0, 1);
lcd.print("Stop the bell!!!");
if (digitalRead(over_ride_off) == LOW)
{
Over_ride = false;
digitalWrite(bell, LOW);
}
}
Over_ride = true;
}
void bell_setting()
{
setting_value = 0;
EEPROM.write(setting_address, setting_value);
lcd.clear();
while (bell_status)
{
lcd.setCursor(0, 0);
lcd.print("Bell is Disabled");
lcd.setCursor(0, 1);
lcd.print("Press Exit.");
if (digitalRead(over_ride_off) == LOW)
{
bell_status = false;
}
}
bell_status = true;
setting_value = 1;
EEPROM.write(setting_address, setting_value);
}

[lastchancename]

Read about array[]s to make yours and our lives easier.

[TomGeorge]

@youssef_b

but I need help to make the bell ring only when the push button (Bell Button) is clicked and when it's released, the bell turns off.

What about when the timer wants to operate the bell?

An easy solution, put your push button across the collector and emitter of the transistor that switches the relay.
No code changes needed.

Tom..

[noweare]

You can poll the button in your code and if it is low turn off the timer and turn on the bell.
When the button is if it is high turn off the bell and turn on the timer again.

So you probably need a boolean flag so that if the bell is on manual the timer will not
turn on the bell. So something like

if( !bell_on) && if (H == h2 && M == m2 && S == 0)   //this will only turn the bell on if not already on from manaul push button
   ....

[ruilviana]

Hi,
is the same subject?

https://forum.arduino.cc/t/automatic-school-bell/1043084

[UKHeliBob]

@youssef_b

Your other topic on the same subject deleted.

Please do not duplicate your questions as doing so wastes the time and effort of the volunteers trying to help you as they are then answering the same thing in different places.

Please create one topic only for your question and choose the forum category carefully. If you have multiple questions about the same project then please ask your questions in the one topic as the answers to one question provide useful context for the others, and also you won’t have to keep explaining your project repeatedly.

Repeated duplicate posting could result in a temporary or permanent ban from the forum.

Could you take a few moments to Learn How To Use The Forum

How to get the best out of this forum

See also FAQ - Arduino Forum for general rules on forum behaviour and etiquette. Hello, Welcome to the Arduino Forum. This guide explains how to get the best out of this forum. Please read and follow the instructions below. Being new here you might think this is having rules for the sake of rules, but that is not the case. If you don’t follow the guidelines all that happens is there is a long exchange of posts while we try to get you to tell us what we need in order to help you, which is fru…

It will help you get the best out of the forum in the future.

Thank you.

[PaulRB]

@youssef_b

make the bell ring only when the push button (Bell Button) is clicked and when it's released, the bell turns off.

You don't need a clock or an Arduino for that, just a button and a bell!

[youssef_b]

It's a good idea but i want everything to be controlled using the arduino

[youssef_b]

Like i said i want everything to be controlled using the arduino

[PaulRB]

@youssef_b

everything to be controlled using the arduino

So far you only mentioned controlling a bell. That can be controlled with a button. What benefit is the Arduino adding?

[youssef_b]

I mean, when clicking the manual bell button, the bell will bell for 3 sec, then turn off. At the same time, a msg will appear on the lcd.

[PaulRB]

@youssef_b

when it's released, the bell turns off.

@youssef_b

the bell will bell for 3 sec, then turn off.

Ok. Take some time to think about and write down what you want the project to do. When you are as certain as you can be that you have that figured out, and you have not forgotten anything, we will be here to help.