How To Make A Random Option Picker Using Arduino??

Hi, in this project I have explained that how can you make a random option picker with Arduino and LCD. This project is just for fun..

Jul 23, 2021

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1 respects

Components and supplies

Arduino Uno Rev3

16x2 LCD display with I²C interface

Gravity:Digital Push Button (Yellow)

Resistor 1k ohm

Tools and machines

Breadboard, 170 Pin

Premium Male/Male Jumper Wires, 40 x 3" (75mm)

Project description

Code

CODE FOR THIS GADGET

arduino

FIRST OF ALL DON'T FORGET TO INSTALL LiquidCrystal_I2C.h FROM LIBRARY MANAGER, THEN SELECT PROPER BOARD , PORT AND UPLOAD IT

1#include<LiquidCrystal_I2C.h>
2//INSTALL THIS LIBRARY FIRST
3
4LiquidCrystal_I2C
5  lcd (0x27,16,2);
6
7int button=8;//CONNECT BUTTON TO DigitalPin 8
8
9char
10  *options[]={"First option","Second Option"}; 
11long option1;
12
13void setup(){
14
15  lcd.init();
16   lcd.backlight();
17    pinMode(button,INPUT);
18    randomSeed(500);
19
20      
21           
22}
23void loop(){
24
25    
26      
27      
28                  int
29  state=0;
30                      state=digitalRead(button);
31
32              if(state==HIGH){
33
34                         
35                             option1 = random(sizeof(options)/sizeof(char*));
36
37                        lcd.clear();
38                         delay(1000);
39
40
41                              lcd.print("PROCESSING....");
42                                  lcd.blink();
43
44
45                    delay(4000);
46                            lcd.clear();
47
48                            lcd.setCursor(0,0);
49                            lcd.print("I
50  CHOOSE:-");
51                                        
52                             lcd.setCursor(0,1);
53
54                     lcd.print(options[option1]);
55                     delay
56  (5000);
57                     lcd.clear();
58                           
59
60                           
61          
62              }
63
64              else{
65
66                lcd.setCursor(0,0);
67                lcd.print("Press to start");
68
69                lcd.blink();
70                delay(200);
71              }
72
73                     
74}
75
76
77

#include<LiquidCrystal_I2C.h>
//INSTALL THIS LIBRARY FIRST

LiquidCrystal_I2C
  lcd (0x27,16,2);

int button=8;//CONNECT BUTTON TO DigitalPin 8

char
  *options[]={"First option","Second Option"}; 
long option1;

void setup(){

  lcd.init();
   lcd.backlight();
    pinMode(button,INPUT);
    randomSeed(500);

      
           
}
void loop(){

    
      
      
                  int
  state=0;
                      state=digitalRead(button);

              if(state==HIGH){

                         
                             option1 = random(sizeof(options)/sizeof(char*));

                        lcd.clear();
                         delay(1000);


                              lcd.print("PROCESSING....");
                                  lcd.blink();


                    delay(4000);
                            lcd.clear();

                            lcd.setCursor(0,0);
                            lcd.print("I
  CHOOSE:-");
                                        
                             lcd.setCursor(0,1);

                     lcd.print(options[option1]);
                     delay
  (5000);
                     lcd.clear();
                           

                           
          
              }

              else{

                lcd.setCursor(0,0);
                lcd.print("Press to start");

                lcd.blink();
                delay(200);
              }

                     
}

CODE FOR THIS GADGET

arduino

FIRST OF ALL DON'T FORGET TO INSTALL LiquidCrystal_I2C.h FROM LIBRARY MANAGER, THEN SELECT PROPER BOARD , PORT AND UPLOAD IT

1#include<LiquidCrystal_I2C.h>
2//INSTALL THIS LIBRARY FIRST
3
4LiquidCrystal_I2C  lcd (0x27,16,2);
5
6int button=8;//CONNECT BUTTON TO DigitalPin 8
7
8char  *options[]={"First option","Second Option"}; 
9long option1;
10
11void setup(){
12  lcd.init();
13   lcd.backlight();
14    pinMode(button,INPUT);
15    randomSeed(500);
16      
17           
18}
19void loop(){
20
21    
22      
23      
24                  int  state=0;
25                      state=digitalRead(button);
26
27              if(state==HIGH){
28                         
29                             option1 = random(sizeof(options)/sizeof(char*));
30                        lcd.clear();
31                         delay(1000);
32
33                              lcd.print("PROCESSING....");
34                                  lcd.blink();
35
36                    delay(4000);
37                            lcd.clear();
38                            lcd.setCursor(0,0);
39                            lcd.print("I  CHOOSE:-");
40                                        
41                             lcd.setCursor(0,1);
42                     lcd.print(options[option1]);
43                     delay  (5000);
44                     lcd.clear();
45                           
46                           
47          
48              }
49
50              else{
51                lcd.setCursor(0,0);
52                lcd.print("Press to start");
53                lcd.blink();
54                delay(200);
55              }
56                     
57}
58
59
60

#include<LiquidCrystal_I2C.h>
//INSTALL THIS LIBRARY FIRST

LiquidCrystal_I2C  lcd (0x27,16,2);

int button=8;//CONNECT BUTTON TO DigitalPin 8

char  *options[]={"First option","Second Option"}; 
long option1;

void setup(){
  lcd.init();
   lcd.backlight();
    pinMode(button,INPUT);
    randomSeed(500);
      
           
}
void loop(){

    
      
      
                  int  state=0;
                      state=digitalRead(button);

              if(state==HIGH){
                         
                             option1 = random(sizeof(options)/sizeof(char*));
                        lcd.clear();
                         delay(1000);

                              lcd.print("PROCESSING....");
                                  lcd.blink();

                    delay(4000);
                            lcd.clear();
                            lcd.setCursor(0,0);
                            lcd.print("I  CHOOSE:-");
                                        
                             lcd.setCursor(0,1);
                     lcd.print(options[option1]);
                     delay  (5000);
                     lcd.clear();
                           
                           
          
              }

              else{
                lcd.setCursor(0,0);
                lcd.print("Press to start");
                lcd.blink();
                delay(200);
              }
                     
}

Downloadable files

CIRCUIT DIAGRAM

FOLLOW THIS CIRCUIT DIAGRAM FOR MAKING THIS GADGET.

CIRCUIT DIAGRAM

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