Hand wash timer

¡Easy Hand washing ! with I2C LCD

Jun 14, 2020

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735 views

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1 respects

prevention

covid

Components and supplies

Breadboard (generic)

I2C 16x2 Arduino LCD Display Module

Arduino UNO

Resistor 10k ohm

Pushbutton switch 12mm

5 mm LED: Red

Jumper wires (generic)

Resistor 221 ohm

Buzzer

5 mm LED: Green

Apps and platforms

Arduino Web Editor

Project description

Code

code

arduino

1#include <Wire.h>                 
2#include <LiquidCrystal_I2C.h>  //libraries   for lcd
3
4LiquidCrystal_I2C lcd(0x27,16,2); 
5                                 
6//we   define variables and constant variables
7int ledr=13;//red led
8int ledg=12;//green   led
9const  int Buzzer = 11 ;//nuestro zumbador activo
10int btn = 10;// our   button
11
12void setup(){
13 //we define the outputs
14 pinMode(ledr, OUTPUT);
15   pinMode(ledg, OUTPUT);
16 pinMode(Buzzer,OUTPUT);
17 //and the inputs
18 pinMode(btn,INPUT);
19   //we start the lcd
20   lcd.init();                     
21  lcd.backlight();
22       lcd.setCursor(0, 0); 
23      lcd.print("start      ");  
24 }
25void   loop(){
26  // leemos el valor del boton si esta encendido inicia la cuenta
27if   (digitalRead(btn)==HIGH){ 
28digitalWrite(ledr, HIGH);
29digitalWrite(ledg, LOW);
30digitalWrite(Buzzer,   HIGH);
31delay(500);
32lcd.setCursor(0, 0); 
33lcd.print("20 seconds"); 
34lcd.setCursor(0,   1); 
35lcd.print("remember  ");
36digitalWrite(ledr, HIGH);
37digitalWrite(ledg,   LOW);
38digitalWrite(Buzzer, LOW);
39delay(1000);
40lcd.setCursor(0, 0); 
41lcd.print("19   seconds"); 
42lcd.setCursor(0, 1); 
43lcd.print("this can  ");
44digitalWrite(ledr,   HIGH);
45digitalWrite(ledg, LOW);
46digitalWrite(Buzzer, LOW);
47delay(1000);
48lcd.setCursor(0,   0); 
49lcd.print("18 seconds"); 
50lcd.setCursor(0, 1); 
51lcd.print("save   your ");
52digitalWrite(ledr, HIGH);
53digitalWrite(ledg, LOW);
54digitalWrite(Buzzer,   LOW);
55delay(1000);
56lcd.setCursor(0, 0); 
57lcd.print("17 seconds"); 
58lcd.setCursor(0,   1); 
59lcd.print("life      ");
60digitalWrite(ledr, HIGH);
61digitalWrite(ledg,   LOW);
62digitalWrite(Buzzer, LOW);
63delay(1000);
64lcd.setCursor(0, 0); 
65lcd.print("16   seconds");    
66digitalWrite(ledr, HIGH);
67digitalWrite(ledg, LOW);
68digitalWrite(Buzzer,   LOW);
69delay(1000);
70lcd.setCursor(0, 0); 
71lcd.print("15 seconds");
72lcd.setCursor(0,   1); 
73lcd.print("remember  ");
74digitalWrite(ledr, HIGH);
75digitalWrite(ledg,   LOW);
76digitalWrite(Buzzer, LOW);
77delay(1000);
78lcd.setCursor(0, 0); 
79lcd.print("14   seconds");
80lcd.setCursor(0, 1); 
81lcd.print("this can  ");
82digitalWrite(ledr,   HIGH);
83digitalWrite(ledg, LOW);
84digitalWrite(Buzzer, LOW);
85delay(1000);
86lcd.setCursor(0,   0); 
87lcd.print("13 seconds"); 
88lcd.setCursor(0, 1); 
89lcd.print("save   your ");
90digitalWrite(ledr, HIGH);
91digitalWrite(ledg, LOW);
92digitalWrite(Buzzer,   LOW);
93delay(1000);
94lcd.setCursor(0, 0); 
95lcd.print("12 seconds"); 
96lcd.setCursor(0,   1); 
97lcd.print("life      ");
98digitalWrite(ledr, HIGH);
99digitalWrite(ledg,   LOW);
100digitalWrite(Buzzer, LOW);
101delay(1000);
102lcd.setCursor(0, 0); 
103lcd.print("11   seconds");    
104digitalWrite(ledr, HIGH);
105digitalWrite(ledg, LOW);
106digitalWrite(Buzzer,   LOW);
107delay(1000);
108lcd.setCursor(0, 0); 
109lcd.print("10 seconds"); 
110lcd.setCursor(0,   1); 
111lcd.print("remember  ");
112digitalWrite(ledr, HIGH);
113digitalWrite(ledg,   LOW);
114digitalWrite(Buzzer, LOW);
115delay(1000);
116lcd.setCursor(0, 0); 
117lcd.print("9   seconds "); 
118lcd.setCursor(0, 1); 
119lcd.print("this can  ");
120digitalWrite(ledr,   HIGH);
121digitalWrite(ledg, LOW);
122digitalWrite(Buzzer, LOW);
123delay(1000);
124lcd.setCursor(0,   0); 
125lcd.print("8 seconds ");  
126lcd.setCursor(0, 1); 
127lcd.print("save   your ");
128digitalWrite(ledr, HIGH);
129digitalWrite(ledg, LOW);
130digitalWrite(Buzzer,   LOW);
131delay(1000);
132lcd.setCursor(0, 0); 
133lcd.print("7 seconds ");
134lcd.setCursor(0,   1); 
135lcd.print("life      ");
136digitalWrite(ledr, HIGH);
137digitalWrite(ledg,   LOW);
138digitalWrite(Buzzer, LOW);
139delay(1000);
140lcd.setCursor(0, 0); 
141lcd.print("6   seconds ");    
142digitalWrite(ledr, HIGH);
143digitalWrite(ledg, LOW);
144digitalWrite(Buzzer,   LOW);
145delay(1000);
146lcd.setCursor(0, 0); 
147lcd.print("5 seconds ");  
148lcd.setCursor(0,   1); 
149lcd.print("remember  ");
150digitalWrite(ledr, HIGH);
151digitalWrite(ledg,   LOW);
152digitalWrite(Buzzer, LOW);
153delay(1000);
154lcd.setCursor(0, 0);
155lcd.print("4   seconds "); 
156lcd.setCursor(0, 1); 
157lcd.print("this can  ");
158digitalWrite(ledr,   HIGH);
159digitalWrite(ledg, LOW);
160digitalWrite(Buzzer, LOW);
161delay(1000);
162lcd.setCursor(0,   0); 
163lcd.print("3 seconds "); 
164lcd.setCursor(0, 1); 
165lcd.print("save   your ");
166digitalWrite(ledr, HIGH);
167digitalWrite(ledg, LOW);
168digitalWrite(Buzzer,   LOW);
169delay(1000);
170lcd.setCursor(0, 0); 
171lcd.print("2 seconds ");  
172lcd.setCursor(0,   1); 
173lcd.print("life      ");
174digitalWrite(ledr, HIGH);
175digitalWrite(ledg,   LOW);
176digitalWrite(Buzzer, LOW);
177delay(1000);
178lcd.setCursor(0, 0); 
179lcd.print("1   second  ");    
180digitalWrite(ledr, HIGH);
181digitalWrite(ledg, LOW);
182digitalWrite(Buzzer,   LOW);
183delay(1000);
184lcd.setCursor(0, 0); 
185lcd.print("successful");
186lcd.setCursor(0,   1); 
187lcd.print("washing   ");
188digitalWrite(ledr, LOW);
189digitalWrite(ledg,   HIGH);
190digitalWrite(Buzzer, HIGH);
191delay(500);
192lcd.setCursor(0, 0); 
193lcd.print("successful");
194lcd.setCursor(0,   1); 
195lcd.print("washing   ");
196digitalWrite(ledr, LOW);
197digitalWrite(ledg,   HIGH);
198digitalWrite(Buzzer, LOW);
199delay(500);
200lcd.setCursor(0, 0); 
201lcd.print("successful");
202lcd.setCursor(0,   1); 
203lcd.print("washing   ");
204digitalWrite(ledr, LOW);
205digitalWrite(ledg,   HIGH);
206digitalWrite(Buzzer, HIGH);
207delay(500);
208lcd.setCursor(0, 0); 
209lcd.print("successful");
210lcd.setCursor(0,   1); 
211lcd.print("washing   ");
212digitalWrite(ledr, LOW);
213digitalWrite(ledg,   HIGH);
214digitalWrite(Buzzer, LOW);
215delay(500);
216lcd.setCursor(0, 0); 
217lcd.print("can   go out");
218lcd.setCursor(0, 1); 
219lcd.print("          ");
220delay(5000);
221}
222else   {
223digitalWrite(ledr, LOW);
224digitalWrite(ledg, LOW);
225digitalWrite(Buzzer,   LOW);
226lcd.setCursor(0, 0); 
227lcd.print("start      "); 
228}
229}

#include <Wire.h>                 
#include <LiquidCrystal_I2C.h>  //libraries   for lcd

LiquidCrystal_I2C lcd(0x27,16,2); 
                                 
//we   define variables and constant variables
int ledr=13;//red led
int ledg=12;//green   led
const  int Buzzer = 11 ;//nuestro zumbador activo
int btn = 10;// our   button

void setup(){
 //we define the outputs
 pinMode(ledr, OUTPUT);
   pinMode(ledg, OUTPUT);
 pinMode(Buzzer,OUTPUT);
 //and the inputs
 pinMode(btn,INPUT);
   //we start the lcd
   lcd.init();                     
  lcd.backlight();
       lcd.setCursor(0, 0); 
      lcd.print("start      ");  
 }
void   loop(){
  // leemos el valor del boton si esta encendido inicia la cuenta
if   (digitalRead(btn)==HIGH){ 
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   HIGH);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("20 seconds"); 
lcd.setCursor(0,   1); 
lcd.print("remember  ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,   LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("19   seconds"); 
lcd.setCursor(0, 1); 
lcd.print("this can  ");
digitalWrite(ledr,   HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0,   0); 
lcd.print("18 seconds"); 
lcd.setCursor(0, 1); 
lcd.print("save   your ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("17 seconds"); 
lcd.setCursor(0,   1); 
lcd.print("life      ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,   LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("16   seconds");    
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("15 seconds");
lcd.setCursor(0,   1); 
lcd.print("remember  ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,   LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("14   seconds");
lcd.setCursor(0, 1); 
lcd.print("this can  ");
digitalWrite(ledr,   HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0,   0); 
lcd.print("13 seconds"); 
lcd.setCursor(0, 1); 
lcd.print("save   your ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("12 seconds"); 
lcd.setCursor(0,   1); 
lcd.print("life      ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,   LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("11   seconds");    
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("10 seconds"); 
lcd.setCursor(0,   1); 
lcd.print("remember  ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,   LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("9   seconds "); 
lcd.setCursor(0, 1); 
lcd.print("this can  ");
digitalWrite(ledr,   HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0,   0); 
lcd.print("8 seconds ");  
lcd.setCursor(0, 1); 
lcd.print("save   your ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("7 seconds ");
lcd.setCursor(0,   1); 
lcd.print("life      ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,   LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("6   seconds ");    
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("5 seconds ");  
lcd.setCursor(0,   1); 
lcd.print("remember  ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,   LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0);
lcd.print("4   seconds "); 
lcd.setCursor(0, 1); 
lcd.print("this can  ");
digitalWrite(ledr,   HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0,   0); 
lcd.print("3 seconds "); 
lcd.setCursor(0, 1); 
lcd.print("save   your ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("2 seconds ");  
lcd.setCursor(0,   1); 
lcd.print("life      ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,   LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("1   second  ");    
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("successful");
lcd.setCursor(0,   1); 
lcd.print("washing   ");
digitalWrite(ledr, LOW);
digitalWrite(ledg,   HIGH);
digitalWrite(Buzzer, HIGH);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("successful");
lcd.setCursor(0,   1); 
lcd.print("washing   ");
digitalWrite(ledr, LOW);
digitalWrite(ledg,   HIGH);
digitalWrite(Buzzer, LOW);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("successful");
lcd.setCursor(0,   1); 
lcd.print("washing   ");
digitalWrite(ledr, LOW);
digitalWrite(ledg,   HIGH);
digitalWrite(Buzzer, HIGH);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("successful");
lcd.setCursor(0,   1); 
lcd.print("washing   ");
digitalWrite(ledr, LOW);
digitalWrite(ledg,   HIGH);
digitalWrite(Buzzer, LOW);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("can   go out");
lcd.setCursor(0, 1); 
lcd.print("          ");
delay(5000);
}
else   {
digitalWrite(ledr, LOW);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,   LOW);
lcd.setCursor(0, 0); 
lcd.print("start      "); 
}
}

code

arduino

1#include <Wire.h>                 
2#include <LiquidCrystal_I2C.h>  //libraries  for lcd
3
4LiquidCrystal_I2C lcd(0x27,16,2); 
5                                 
6//we  define variables and constant variables
7int ledr=13;//red led
8int ledg=12;//green  led
9const  int Buzzer = 11 ;//nuestro zumbador activo
10int btn = 10;// our  button
11
12void setup(){
13 //we define the outputs
14 pinMode(ledr, OUTPUT);
15  pinMode(ledg, OUTPUT);
16 pinMode(Buzzer,OUTPUT);
17 //and the inputs
18 pinMode(btn,INPUT);
19  //we start the lcd
20   lcd.init();                     
21  lcd.backlight();
22      lcd.setCursor(0, 0); 
23      lcd.print("start      ");  
24 }
25void  loop(){
26  // leemos el valor del boton si esta encendido inicia la cuenta
27if  (digitalRead(btn)==HIGH){ 
28digitalWrite(ledr, HIGH);
29digitalWrite(ledg, LOW);
30digitalWrite(Buzzer,  HIGH);
31delay(500);
32lcd.setCursor(0, 0); 
33lcd.print("20 seconds"); 
34lcd.setCursor(0,  1); 
35lcd.print("remember  ");
36digitalWrite(ledr, HIGH);
37digitalWrite(ledg,  LOW);
38digitalWrite(Buzzer, LOW);
39delay(1000);
40lcd.setCursor(0, 0); 
41lcd.print("19  seconds"); 
42lcd.setCursor(0, 1); 
43lcd.print("this can  ");
44digitalWrite(ledr,  HIGH);
45digitalWrite(ledg, LOW);
46digitalWrite(Buzzer, LOW);
47delay(1000);
48lcd.setCursor(0,  0); 
49lcd.print("18 seconds"); 
50lcd.setCursor(0, 1); 
51lcd.print("save  your ");
52digitalWrite(ledr, HIGH);
53digitalWrite(ledg, LOW);
54digitalWrite(Buzzer,  LOW);
55delay(1000);
56lcd.setCursor(0, 0); 
57lcd.print("17 seconds"); 
58lcd.setCursor(0,  1); 
59lcd.print("life      ");
60digitalWrite(ledr, HIGH);
61digitalWrite(ledg,  LOW);
62digitalWrite(Buzzer, LOW);
63delay(1000);
64lcd.setCursor(0, 0); 
65lcd.print("16  seconds");    
66digitalWrite(ledr, HIGH);
67digitalWrite(ledg, LOW);
68digitalWrite(Buzzer,  LOW);
69delay(1000);
70lcd.setCursor(0, 0); 
71lcd.print("15 seconds");
72lcd.setCursor(0,  1); 
73lcd.print("remember  ");
74digitalWrite(ledr, HIGH);
75digitalWrite(ledg,  LOW);
76digitalWrite(Buzzer, LOW);
77delay(1000);
78lcd.setCursor(0, 0); 
79lcd.print("14  seconds");
80lcd.setCursor(0, 1); 
81lcd.print("this can  ");
82digitalWrite(ledr,  HIGH);
83digitalWrite(ledg, LOW);
84digitalWrite(Buzzer, LOW);
85delay(1000);
86lcd.setCursor(0,  0); 
87lcd.print("13 seconds"); 
88lcd.setCursor(0, 1); 
89lcd.print("save  your ");
90digitalWrite(ledr, HIGH);
91digitalWrite(ledg, LOW);
92digitalWrite(Buzzer,  LOW);
93delay(1000);
94lcd.setCursor(0, 0); 
95lcd.print("12 seconds"); 
96lcd.setCursor(0,  1); 
97lcd.print("life      ");
98digitalWrite(ledr, HIGH);
99digitalWrite(ledg,  LOW);
100digitalWrite(Buzzer, LOW);
101delay(1000);
102lcd.setCursor(0, 0); 
103lcd.print("11  seconds");    
104digitalWrite(ledr, HIGH);
105digitalWrite(ledg, LOW);
106digitalWrite(Buzzer,  LOW);
107delay(1000);
108lcd.setCursor(0, 0); 
109lcd.print("10 seconds"); 
110lcd.setCursor(0,  1); 
111lcd.print("remember  ");
112digitalWrite(ledr, HIGH);
113digitalWrite(ledg,  LOW);
114digitalWrite(Buzzer, LOW);
115delay(1000);
116lcd.setCursor(0, 0); 
117lcd.print("9  seconds "); 
118lcd.setCursor(0, 1); 
119lcd.print("this can  ");
120digitalWrite(ledr,  HIGH);
121digitalWrite(ledg, LOW);
122digitalWrite(Buzzer, LOW);
123delay(1000);
124lcd.setCursor(0,  0); 
125lcd.print("8 seconds ");  
126lcd.setCursor(0, 1); 
127lcd.print("save  your ");
128digitalWrite(ledr, HIGH);
129digitalWrite(ledg, LOW);
130digitalWrite(Buzzer,  LOW);
131delay(1000);
132lcd.setCursor(0, 0); 
133lcd.print("7 seconds ");
134lcd.setCursor(0,  1); 
135lcd.print("life      ");
136digitalWrite(ledr, HIGH);
137digitalWrite(ledg,  LOW);
138digitalWrite(Buzzer, LOW);
139delay(1000);
140lcd.setCursor(0, 0); 
141lcd.print("6  seconds ");    
142digitalWrite(ledr, HIGH);
143digitalWrite(ledg, LOW);
144digitalWrite(Buzzer,  LOW);
145delay(1000);
146lcd.setCursor(0, 0); 
147lcd.print("5 seconds ");  
148lcd.setCursor(0,  1); 
149lcd.print("remember  ");
150digitalWrite(ledr, HIGH);
151digitalWrite(ledg,  LOW);
152digitalWrite(Buzzer, LOW);
153delay(1000);
154lcd.setCursor(0, 0);
155lcd.print("4  seconds "); 
156lcd.setCursor(0, 1); 
157lcd.print("this can  ");
158digitalWrite(ledr,  HIGH);
159digitalWrite(ledg, LOW);
160digitalWrite(Buzzer, LOW);
161delay(1000);
162lcd.setCursor(0,  0); 
163lcd.print("3 seconds "); 
164lcd.setCursor(0, 1); 
165lcd.print("save  your ");
166digitalWrite(ledr, HIGH);
167digitalWrite(ledg, LOW);
168digitalWrite(Buzzer,  LOW);
169delay(1000);
170lcd.setCursor(0, 0); 
171lcd.print("2 seconds ");  
172lcd.setCursor(0,  1); 
173lcd.print("life      ");
174digitalWrite(ledr, HIGH);
175digitalWrite(ledg,  LOW);
176digitalWrite(Buzzer, LOW);
177delay(1000);
178lcd.setCursor(0, 0); 
179lcd.print("1  second  ");    
180digitalWrite(ledr, HIGH);
181digitalWrite(ledg, LOW);
182digitalWrite(Buzzer,  LOW);
183delay(1000);
184lcd.setCursor(0, 0); 
185lcd.print("successful");
186lcd.setCursor(0,  1); 
187lcd.print("washing   ");
188digitalWrite(ledr, LOW);
189digitalWrite(ledg,  HIGH);
190digitalWrite(Buzzer, HIGH);
191delay(500);
192lcd.setCursor(0, 0); 
193lcd.print("successful");
194lcd.setCursor(0,  1); 
195lcd.print("washing   ");
196digitalWrite(ledr, LOW);
197digitalWrite(ledg,  HIGH);
198digitalWrite(Buzzer, LOW);
199delay(500);
200lcd.setCursor(0, 0); 
201lcd.print("successful");
202lcd.setCursor(0,  1); 
203lcd.print("washing   ");
204digitalWrite(ledr, LOW);
205digitalWrite(ledg,  HIGH);
206digitalWrite(Buzzer, HIGH);
207delay(500);
208lcd.setCursor(0, 0); 
209lcd.print("successful");
210lcd.setCursor(0,  1); 
211lcd.print("washing   ");
212digitalWrite(ledr, LOW);
213digitalWrite(ledg,  HIGH);
214digitalWrite(Buzzer, LOW);
215delay(500);
216lcd.setCursor(0, 0); 
217lcd.print("can  go out");
218lcd.setCursor(0, 1); 
219lcd.print("          ");
220delay(5000);
221}
222else  {
223digitalWrite(ledr, LOW);
224digitalWrite(ledg, LOW);
225digitalWrite(Buzzer,  LOW);
226lcd.setCursor(0, 0); 
227lcd.print("start      "); 
228}
229}

#include <Wire.h>                 
#include <LiquidCrystal_I2C.h>  //libraries  for lcd

LiquidCrystal_I2C lcd(0x27,16,2); 
                                 
//we  define variables and constant variables
int ledr=13;//red led
int ledg=12;//green  led
const  int Buzzer = 11 ;//nuestro zumbador activo
int btn = 10;// our  button

void setup(){
 //we define the outputs
 pinMode(ledr, OUTPUT);
  pinMode(ledg, OUTPUT);
 pinMode(Buzzer,OUTPUT);
 //and the inputs
 pinMode(btn,INPUT);
  //we start the lcd
   lcd.init();                     
  lcd.backlight();
      lcd.setCursor(0, 0); 
      lcd.print("start      ");  
 }
void  loop(){
  // leemos el valor del boton si esta encendido inicia la cuenta
if  (digitalRead(btn)==HIGH){ 
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  HIGH);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("20 seconds"); 
lcd.setCursor(0,  1); 
lcd.print("remember  ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,  LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("19  seconds"); 
lcd.setCursor(0, 1); 
lcd.print("this can  ");
digitalWrite(ledr,  HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0,  0); 
lcd.print("18 seconds"); 
lcd.setCursor(0, 1); 
lcd.print("save  your ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("17 seconds"); 
lcd.setCursor(0,  1); 
lcd.print("life      ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,  LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("16  seconds");    
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("15 seconds");
lcd.setCursor(0,  1); 
lcd.print("remember  ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,  LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("14  seconds");
lcd.setCursor(0, 1); 
lcd.print("this can  ");
digitalWrite(ledr,  HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0,  0); 
lcd.print("13 seconds"); 
lcd.setCursor(0, 1); 
lcd.print("save  your ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("12 seconds"); 
lcd.setCursor(0,  1); 
lcd.print("life      ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,  LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("11  seconds");    
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("10 seconds"); 
lcd.setCursor(0,  1); 
lcd.print("remember  ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,  LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("9  seconds "); 
lcd.setCursor(0, 1); 
lcd.print("this can  ");
digitalWrite(ledr,  HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0,  0); 
lcd.print("8 seconds ");  
lcd.setCursor(0, 1); 
lcd.print("save  your ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("7 seconds ");
lcd.setCursor(0,  1); 
lcd.print("life      ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,  LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("6  seconds ");    
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("5 seconds ");  
lcd.setCursor(0,  1); 
lcd.print("remember  ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,  LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0);
lcd.print("4  seconds "); 
lcd.setCursor(0, 1); 
lcd.print("this can  ");
digitalWrite(ledr,  HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0,  0); 
lcd.print("3 seconds "); 
lcd.setCursor(0, 1); 
lcd.print("save  your ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("2 seconds ");  
lcd.setCursor(0,  1); 
lcd.print("life      ");
digitalWrite(ledr, HIGH);
digitalWrite(ledg,  LOW);
digitalWrite(Buzzer, LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("1  second  ");    
digitalWrite(ledr, HIGH);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  LOW);
delay(1000);
lcd.setCursor(0, 0); 
lcd.print("successful");
lcd.setCursor(0,  1); 
lcd.print("washing   ");
digitalWrite(ledr, LOW);
digitalWrite(ledg,  HIGH);
digitalWrite(Buzzer, HIGH);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("successful");
lcd.setCursor(0,  1); 
lcd.print("washing   ");
digitalWrite(ledr, LOW);
digitalWrite(ledg,  HIGH);
digitalWrite(Buzzer, LOW);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("successful");
lcd.setCursor(0,  1); 
lcd.print("washing   ");
digitalWrite(ledr, LOW);
digitalWrite(ledg,  HIGH);
digitalWrite(Buzzer, HIGH);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("successful");
lcd.setCursor(0,  1); 
lcd.print("washing   ");
digitalWrite(ledr, LOW);
digitalWrite(ledg,  HIGH);
digitalWrite(Buzzer, LOW);
delay(500);
lcd.setCursor(0, 0); 
lcd.print("can  go out");
lcd.setCursor(0, 1); 
lcd.print("          ");
delay(5000);
}
else  {
digitalWrite(ledr, LOW);
digitalWrite(ledg, LOW);
digitalWrite(Buzzer,  LOW);
lcd.setCursor(0, 0); 
lcd.print("start      "); 
}
}

Downloadable files

mighty_uusam_4r5FeEjxUo.png

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