Clock without using RTC in Arduino with Temperature and humi

Clock without using RTC in Arduino with Temperature and humidity indicator

Jan 10, 2018

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68300 views

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79 respects

Components and supplies

DHT11 Temperature & Humidity Sensor (4 pins)

Breadboard (generic)

Arduino UNO

Standard LCD - 16x2 White on Blue

Rotary potentiometer (generic)

Jumper wires (generic)

Button

Project description

Code

Clock without using RTC with temperature and humidity indicator

arduino

Clock without using RTC with temperature and humidity indicator

1// Ahmad Ordikhani Seyedlar
2
3#include <LiquidCrystal.h>
4#include   <SimpleDHT.h>
5
6// initialize the library with the numbers of the interface   pins
7LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
8volatile int sec, minute = 0,   hour = 0;
9int b_h = 5;
10int b_m = 6;
11int pinDHT11 = 2;
12int b_startstop   = 3;
13bool startstop = false;
14
15SimpleDHT11 dht11;
16
17void setup() {
18
19   // set up the LCD's number of columns and rows:
20  lcd.begin(16, 2);
21
22   lcd.setCursor(0, 0);
23  lcd.print("Ahmad Ordikhani");
24  lcd.setCursor(0,   1);
25  lcd.print("Clk without RTC");
26  delay(3000);
27  lcd.clear();
28
29   pinMode(b_h, INPUT_PULLUP);
30  pinMode(b_m, INPUT_PULLUP);
31  pinMode(b_startstop,   INPUT_PULLUP);
32
33  attachInterrupt(digitalPinToInterrupt(3), buttons, FALLING);
34
35
36}
37
38void   loop() {
39
40  //Setting the time will stop the clock to set the time
41  while   (startstop == false)
42  {
43    lcd.setCursor(0, 1);
44    lcd.print("SET");
45     delay(100);
46    lcd.setCursor(0, 0);
47    lcd.print("Time: ");
48    if(hour<10)
49     {
50    lcd.print("0");
51    lcd.print(hour);
52    }
53    else
54     lcd.print(hour);
55    
56    lcd.print(":");
57    if(minute<10)
58    {
59       lcd.print("0");
60    lcd.print(minute);
61    }
62    else
63    lcd.print(minute);
64     lcd.print(":");
65    if(sec<10)
66    {
67    lcd.print("0");  
68     lcd.print(sec);
69    }
70    else
71    lcd.print(sec);
72    lcd.print("   ");
73
74    if (digitalRead(b_h) == LOW)
75    {
76      hour++;
77      if   (hour > 23)
78        hour = 0;
79    }
80
81    if (digitalRead(b_m) == LOW)
82     {
83      minute++;
84      if (minute > 59)
85        minute = 0;
86    }
87
88   }
89
90  //Start the clock
91  while (startstop == true)
92  {
93
94
95     // noInterrupts();
96    // read with raw sample data.
97    byte temperature   = 0;
98    byte humidity = 0;
99    byte data[40] = {0};
100    if (dht11.read(pinDHT11,   &temperature, &humidity, data)) {
101      lcd.setCursor(0, 1);
102      lcd.print("Read   DHT11 failed");
103      return;
104    }
105    lcd.setCursor(0, 1);
106    lcd.print("Temp:");
107     lcd.print((int)temperature);
108    //lcd.print("*C");
109    lcd.print("   ");
110    lcd.print("Hum.:");
111    lcd.print((int)humidity);
112    lcd.print("%");
113     //Serial.print((int)temperature); Serial.print(" *C, ");
114    // Serial.print((int)humidity);   Serial.println(" %");
115
116    lcd.setCursor(0, 0);
117    //sec=millis()/1000;
118     delay(1000);
119    lcd.print("Time: ");
120    if (hour < 10)
121    {
122       lcd.print("0");
123      lcd.print(hour);
124    }
125    else
126    {
127       lcd.print(hour);
128    }
129    lcd.print(":");
130    if (minute < 10)
131     {
132      lcd.print("0");
133      lcd.print(minute);
134    }
135    else
136     {
137      lcd.print(minute);
138
139    } lcd.print(":");
140    if (sec   < 10)
141    {
142      lcd.print("0");
143      lcd.print(sec);
144    }
145     else
146    {
147      lcd.print(sec);
148    }
149    lcd.print(" ");
150     //lcd.print(startstop);
151    sec++;
152    if (sec > 59)
153    {
154      minute++;
155       sec = 0;
156      //lcd.clear();
157    }
158
159    if (minute > 59)
160     {
161      hour++;
162      minute = 0;
163      //lcd.clear();
164    }
165     if (hour > 23)
166    {
167      hour = 0;
168      //lcd.clear();
169
170    }
171   }
172}
173
174//Start/Stop the clock
175void buttons()
176{
177  lcd.clear();
178   startstop = !startstop;
179
180
181}
182
183

// Ahmad Ordikhani Seyedlar

#include <LiquidCrystal.h>
#include   <SimpleDHT.h>

// initialize the library with the numbers of the interface   pins
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
volatile int sec, minute = 0,   hour = 0;
int b_h = 5;
int b_m = 6;
int pinDHT11 = 2;
int b_startstop   = 3;
bool startstop = false;

SimpleDHT11 dht11;

void setup() {

   // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);

   lcd.setCursor(0, 0);
  lcd.print("Ahmad Ordikhani");
  lcd.setCursor(0,   1);
  lcd.print("Clk without RTC");
  delay(3000);
  lcd.clear();

   pinMode(b_h, INPUT_PULLUP);
  pinMode(b_m, INPUT_PULLUP);
  pinMode(b_startstop,   INPUT_PULLUP);

  attachInterrupt(digitalPinToInterrupt(3), buttons, FALLING);


}

void   loop() {

  //Setting the time will stop the clock to set the time
  while   (startstop == false)
  {
    lcd.setCursor(0, 1);
    lcd.print("SET");
     delay(100);
    lcd.setCursor(0, 0);
    lcd.print("Time: ");
    if(hour<10)
     {
    lcd.print("0");
    lcd.print(hour);
    }
    else
     lcd.print(hour);
    
    lcd.print(":");
    if(minute<10)
    {
       lcd.print("0");
    lcd.print(minute);
    }
    else
    lcd.print(minute);
     lcd.print(":");
    if(sec<10)
    {
    lcd.print("0");  
     lcd.print(sec);
    }
    else
    lcd.print(sec);
    lcd.print("   ");

    if (digitalRead(b_h) == LOW)
    {
      hour++;
      if   (hour > 23)
        hour = 0;
    }

    if (digitalRead(b_m) == LOW)
     {
      minute++;
      if (minute > 59)
        minute = 0;
    }

   }

  //Start the clock
  while (startstop == true)
  {


     // noInterrupts();
    // read with raw sample data.
    byte temperature   = 0;
    byte humidity = 0;
    byte data[40] = {0};
    if (dht11.read(pinDHT11,   &temperature, &humidity, data)) {
      lcd.setCursor(0, 1);
      lcd.print("Read   DHT11 failed");
      return;
    }
    lcd.setCursor(0, 1);
    lcd.print("Temp:");
     lcd.print((int)temperature);
    //lcd.print("*C");
    lcd.print("   ");
    lcd.print("Hum.:");
    lcd.print((int)humidity);
    lcd.print("%");
     //Serial.print((int)temperature); Serial.print(" *C, ");
    // Serial.print((int)humidity);   Serial.println(" %");

    lcd.setCursor(0, 0);
    //sec=millis()/1000;
     delay(1000);
    lcd.print("Time: ");
    if (hour < 10)
    {
       lcd.print("0");
      lcd.print(hour);
    }
    else
    {
       lcd.print(hour);
    }
    lcd.print(":");
    if (minute < 10)
     {
      lcd.print("0");
      lcd.print(minute);
    }
    else
     {
      lcd.print(minute);

    } lcd.print(":");
    if (sec   < 10)
    {
      lcd.print("0");
      lcd.print(sec);
    }
     else
    {
      lcd.print(sec);
    }
    lcd.print(" ");
     //lcd.print(startstop);
    sec++;
    if (sec > 59)
    {
      minute++;
       sec = 0;
      //lcd.clear();
    }

    if (minute > 59)
     {
      hour++;
      minute = 0;
      //lcd.clear();
    }
     if (hour > 23)
    {
      hour = 0;
      //lcd.clear();

    }
   }
}

//Start/Stop the clock
void buttons()
{
  lcd.clear();
   startstop = !startstop;


}

Clock without using RTC with temperature and humidity indicator

arduino

Clock without using RTC with temperature and humidity indicator

1// Ahmad Ordikhani Seyedlar
2
3#include <LiquidCrystal.h>
4#include  <SimpleDHT.h>
5
6// initialize the library with the numbers of the interface  pins
7LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
8volatile int sec, minute = 0,  hour = 0;
9int b_h = 5;
10int b_m = 6;
11int pinDHT11 = 2;
12int b_startstop  = 3;
13bool startstop = false;
14
15SimpleDHT11 dht11;
16
17void setup() {
18
19  // set up the LCD's number of columns and rows:
20  lcd.begin(16, 2);
21
22  lcd.setCursor(0, 0);
23  lcd.print("Ahmad Ordikhani");
24  lcd.setCursor(0,  1);
25  lcd.print("Clk without RTC");
26  delay(3000);
27  lcd.clear();
28
29  pinMode(b_h, INPUT_PULLUP);
30  pinMode(b_m, INPUT_PULLUP);
31  pinMode(b_startstop,  INPUT_PULLUP);
32
33  attachInterrupt(digitalPinToInterrupt(3), buttons, FALLING);
34
35
36}
37
38void  loop() {
39
40  //Setting the time will stop the clock to set the time
41  while  (startstop == false)
42  {
43    lcd.setCursor(0, 1);
44    lcd.print("SET");
45    delay(100);
46    lcd.setCursor(0, 0);
47    lcd.print("Time: ");
48    if(hour<10)
49    {
50    lcd.print("0");
51    lcd.print(hour);
52    }
53    else
54    lcd.print(hour);
55    
56    lcd.print(":");
57    if(minute<10)
58    {
59      lcd.print("0");
60    lcd.print(minute);
61    }
62    else
63    lcd.print(minute);
64    lcd.print(":");
65    if(sec<10)
66    {
67    lcd.print("0");  
68    lcd.print(sec);
69    }
70    else
71    lcd.print(sec);
72    lcd.print("  ");
73
74    if (digitalRead(b_h) == LOW)
75    {
76      hour++;
77      if  (hour > 23)
78        hour = 0;
79    }
80
81    if (digitalRead(b_m) == LOW)
82    {
83      minute++;
84      if (minute > 59)
85        minute = 0;
86    }
87
88  }
89
90  //Start the clock
91  while (startstop == true)
92  {
93
94
95    // noInterrupts();
96    // read with raw sample data.
97    byte temperature  = 0;
98    byte humidity = 0;
99    byte data[40] = {0};
100    if (dht11.read(pinDHT11,  &temperature, &humidity, data)) {
101      lcd.setCursor(0, 1);
102      lcd.print("Read  DHT11 failed");
103      return;
104    }
105    lcd.setCursor(0, 1);
106    lcd.print("Temp:");
107    lcd.print((int)temperature);
108    //lcd.print("*C");
109    lcd.print("  ");
110    lcd.print("Hum.:");
111    lcd.print((int)humidity);
112    lcd.print("%");
113    //Serial.print((int)temperature); Serial.print(" *C, ");
114    // Serial.print((int)humidity);  Serial.println(" %");
115
116    lcd.setCursor(0, 0);
117    //sec=millis()/1000;
118    delay(1000);
119    lcd.print("Time: ");
120    if (hour < 10)
121    {
122      lcd.print("0");
123      lcd.print(hour);
124    }
125    else
126    {
127      lcd.print(hour);
128    }
129    lcd.print(":");
130    if (minute < 10)
131    {
132      lcd.print("0");
133      lcd.print(minute);
134    }
135    else
136    {
137      lcd.print(minute);
138
139    } lcd.print(":");
140    if (sec  < 10)
141    {
142      lcd.print("0");
143      lcd.print(sec);
144    }
145    else
146    {
147      lcd.print(sec);
148    }
149    lcd.print(" ");
150    //lcd.print(startstop);
151    sec++;
152    if (sec > 59)
153    {
154      minute++;
155      sec = 0;
156      //lcd.clear();
157    }
158
159    if (minute > 59)
160    {
161      hour++;
162      minute = 0;
163      //lcd.clear();
164    }
165    if (hour > 23)
166    {
167      hour = 0;
168      //lcd.clear();
169
170    }
171  }
172}
173
174//Start/Stop the clock
175void buttons()
176{
177  lcd.clear();
178  startstop = !startstop;
179
180
181}
182
183

// Ahmad Ordikhani Seyedlar

#include <LiquidCrystal.h>
#include  <SimpleDHT.h>

// initialize the library with the numbers of the interface  pins
LiquidCrystal lcd(7, 8, 9, 10, 11, 12);
volatile int sec, minute = 0,  hour = 0;
int b_h = 5;
int b_m = 6;
int pinDHT11 = 2;
int b_startstop  = 3;
bool startstop = false;

SimpleDHT11 dht11;

void setup() {

  // set up the LCD's number of columns and rows:
  lcd.begin(16, 2);

  lcd.setCursor(0, 0);
  lcd.print("Ahmad Ordikhani");
  lcd.setCursor(0,  1);
  lcd.print("Clk without RTC");
  delay(3000);
  lcd.clear();

  pinMode(b_h, INPUT_PULLUP);
  pinMode(b_m, INPUT_PULLUP);
  pinMode(b_startstop,  INPUT_PULLUP);

  attachInterrupt(digitalPinToInterrupt(3), buttons, FALLING);


}

void  loop() {

  //Setting the time will stop the clock to set the time
  while  (startstop == false)
  {
    lcd.setCursor(0, 1);
    lcd.print("SET");
    delay(100);
    lcd.setCursor(0, 0);
    lcd.print("Time: ");
    if(hour<10)
    {
    lcd.print("0");
    lcd.print(hour);
    }
    else
    lcd.print(hour);
    
    lcd.print(":");
    if(minute<10)
    {
      lcd.print("0");
    lcd.print(minute);
    }
    else
    lcd.print(minute);
    lcd.print(":");
    if(sec<10)
    {
    lcd.print("0");  
    lcd.print(sec);
    }
    else
    lcd.print(sec);
    lcd.print("  ");

    if (digitalRead(b_h) == LOW)
    {
      hour++;
      if  (hour > 23)
        hour = 0;
    }

    if (digitalRead(b_m) == LOW)
    {
      minute++;
      if (minute > 59)
        minute = 0;
    }

  }

  //Start the clock
  while (startstop == true)
  {


    // noInterrupts();
    // read with raw sample data.
    byte temperature  = 0;
    byte humidity = 0;
    byte data[40] = {0};
    if (dht11.read(pinDHT11,  &temperature, &humidity, data)) {
      lcd.setCursor(0, 1);
      lcd.print("Read  DHT11 failed");
      return;
    }
    lcd.setCursor(0, 1);
    lcd.print("Temp:");
    lcd.print((int)temperature);
    //lcd.print("*C");
    lcd.print("  ");
    lcd.print("Hum.:");
    lcd.print((int)humidity);
    lcd.print("%");
    //Serial.print((int)temperature); Serial.print(" *C, ");
    // Serial.print((int)humidity);  Serial.println(" %");

    lcd.setCursor(0, 0);
    //sec=millis()/1000;
    delay(1000);
    lcd.print("Time: ");
    if (hour < 10)
    {
      lcd.print("0");
      lcd.print(hour);
    }
    else
    {
      lcd.print(hour);
    }
    lcd.print(":");
    if (minute < 10)
    {
      lcd.print("0");
      lcd.print(minute);
    }
    else
    {
      lcd.print(minute);

    } lcd.print(":");
    if (sec  < 10)
    {
      lcd.print("0");
      lcd.print(sec);
    }
    else
    {
      lcd.print(sec);
    }
    lcd.print(" ");
    //lcd.print(startstop);
    sec++;
    if (sec > 59)
    {
      minute++;
      sec = 0;
      //lcd.clear();
    }

    if (minute > 59)
    {
      hour++;
      minute = 0;
      //lcd.clear();
    }
    if (hour > 23)
    {
      hour = 0;
      //lcd.clear();

    }
  }
}

//Start/Stop the clock
void buttons()
{
  lcd.clear();
  startstop = !startstop;


}

Downloadable files

Clock withou using RTC with Temperature und Humidity indicator

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