Difference between revisions of "Arduino/C2/Display-counter-using-Arduino/English-timed"

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(Created page with "{| Border = 1 | '''Time''' |'''Narration''' |- | 00:01 | Welcome to the''' Spoken Tutorial''' on''' Display counter using Arduino.''' |- |00:07 |In this tutorial, we will le...")
 
 
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|In this tutorial, we will learn to:
 
|In this tutorial, we will learn to:
  
−
Connect an''' LCD''' and a '''Push button''' to''' Arduino''' board and
+
connect an''' LCD''' and a '''Push button''' to''' Arduino''' board and
 
   
 
   
−
Write a program to increase the count whenever the '''pushbutton''' is pressed'''.'''
+
write a program to increase the count whenever the '''pushbutton''' is pressed.
  
 
|-
 
|-
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| To follow this tutorial, you should have:
 
| To follow this tutorial, you should have:
  
−
Basic knowledge of''' Electronics '''and
+
basic knowledge of electronics and
  
−
Basic knowledge of''' C''' or''' C++''' programming language
+
basic knowledge of''' C''' or''' C++''' programming language.
  
 
|-
 
|-
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| To record this tutorial, I am using:
 
| To record this tutorial, I am using:
  
−
'''Arduino UNO Board'''
+
'''Arduino UNO Board''',
−
'''Ubuntu Linux 14.04''' operating system and
+
 
−
'''Arduino IDE'''
+
'''Ubuntu Linux 14.04 operating system''' and
 +
 
 +
'''Arduino IDE'''.
  
 
|-
 
|-
 
| 00:47
 
| 00:47
−
| In an earlier tutorial in this series, we had created a circuit using '''Arduino''' and '''LCD'''.
+
| In an earlier tutorial, in this series, we had created a circuit using '''Arduino''' and '''LCD'''.
 
We will use the same '''circuit''' in this tutorial.
 
We will use the same '''circuit''' in this tutorial.
  
 
|-
 
|-
 
| 01:00
 
| 01:00
−
| Here, we will add a '''pushbutton''' and make a simple counter.
+
| Here, we will add a '''pushbutton''' and make a simple '''counter'''.
  
 
|-
 
|-
 
| 01:06
 
| 01:06
−
|We have already learnt about the working of pushbutton in an earlier tutorial.
+
|We have already learnt about the working of '''pushbutton''' in an earlier tutorial.
  
 
|-
 
|-
 
| 01:12
 
| 01:12
−
| Now let us learn the connection circuit details.
+
| Now, let us learn the connection '''circuit''' details.
  
 
|-
 
|-
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|-
 
|-
 
| 01:22
 
| 01:22
−
|The''' pushbutton''' is connected to '''pin '''number''' 7 '''and a '''100 ohm resistor''' is connected to the '''ground'''.
+
|The''' pushbutton''' is connected to '''pin number 7 '''and a '''100 ohm resistor''' is connected to the '''ground'''.
  
 
|-
 
|-
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|-
 
|-
 
| 01:37
 
| 01:37
−
| This is the live setup of the connection, as shown in the circuit diagram.
+
| This is the live setup of the connection as shown in the circuit diagram.
  
 
|-
 
|-
 
| 01:44
 
| 01:44
−
| Now we will write a program in the '''Arduino IDE.'''So let’s switch to the '''Arduino IDE'''.
+
| Now, we will write a program in the '''Arduino IDE.''' So, let’s switch to the '''Arduino IDE'''.
  
 
|-
 
|-
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|-
 
|-
 
| 01:59
 
| 01:59
−
| Type the code as shown.
+
| Type the '''code''' as shown.
  
 
|-
 
|-
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|-
 
|-
 
| 02:08
 
| 02:08
−
|Here, '''pin '''number''' 12''' is initialized as '''Register''' '''Select '''and '''pin '''number''' 11''' as '''Enable.'''
+
|Here, '''pin '''number''' 12''' is initialized as '''Register Select '''and '''pin '''number''' 11''' as '''Enable.'''
  
 
|-
 
|-
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|-
 
|-
 
| 02:25
 
| 02:25
−
| In the '''void setup function''', type '''lcd.begin 16 comma 2 '''as shown.
+
| In the '''void setup''' function, type: '''lcd.begin 16 comma 2 '''as shown.
−
This command initializes the '''LCD''' with rows and columns.
+
This '''command''' initializes the '''LCD''' with rows and columns.
  
 
|-
 
|-
 
| 02:41
 
| 02:41
−
| Next we will setup the '''pin '''number''' 7''' as '''INPUT'''.Type the code as shown.
+
| Next we will setup the '''pin '''number''' 7''' as '''INPUT'''. Type the code as shown.
  
 
|-
 
|-
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|-
 
|-
 
| 03:11
 
| 03:11
−
| We will write a simple '''if statement''' to check whether the '''pushbutton''' is pressed or not.
+
| We will write a simple ''''if' statement''' to check whether the '''pushbutton''' is pressed or not.
  
 
|-
 
|-
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|-
 
|-
 
| 03:43
 
| 03:43
−
| Here we see the message '''“button pressed”''' in the '''LCD'''.  
+
| Here, we see the message '''“button pressed”''' in the '''LCD'''.  
 
It shows that the '''pushbutton''' is working successfully.
 
It shows that the '''pushbutton''' is working successfully.
  
 
|-
 
|-
 
| 03:54
 
| 03:54
−
| Next we will modify the program to set a '''counter'''.
+
| Next, we will modify the program to set a '''counter'''.
  
 
|-
 
|-
 
| 03:58
 
| 03:58
−
| We need a variable for counter. Now, we will initialize the variable '''count''' to '''zero'''.
+
| We need a variable for counter. Now, we will initialize the variable '''count''' to zero.
  
 
|-
 
|-
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|-
 
|-
 
| 04:52
 
| 04:52
−
| So, we will write a '''while statement,''' as shown here.
+
| So, we will write a ''''while' statement''' as shown here.
  
 
|-
 
|-
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|-
 
|-
 
| 05:07
 
| 05:07
−
|When you release the button, the state is '''LOW''' and it will come out of the '''while''' '''loop'''.
+
|When you release the button, the state is '''LOW''' and it will come out of the ''''while' loop'''.
  
 
|-
 
|-
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|-
 
|-
 
| 05:26
 
| 05:26
−
|Inside the '''void setup function''', we have initialized the '''LCD''' with 16 columns and 2 rows.
+
|Inside the '''void setup''' function, we have initialized the '''LCD''' with 16 columns and 2 rows.
 
Then the '''pinMode''' is input for the '''pin '''number''' 7'''.
 
Then the '''pinMode''' is input for the '''pin '''number''' 7'''.
  
 
|-
 
|-
 
| 05:42
 
| 05:42
−
|In the''' void loop function''', we are checking the condition whether the '''pushbutton''' is '''HIGH''' or not.
+
|In the''' void loop''' function, we are checking the condition whether the '''pushbutton''' is '''HIGH''' or not.
  
 
|-
 
|-
 
| 05:49
 
| 05:49
−
|When the '''pushbutton''' is pressed, the cursor is set to position zero comma zero.
+
|When the '''pushbutton''' is pressed, the '''cursor''' is set to position zero comma zero.
  
 
|-
 
|-
 
| 05:56
 
| 05:56
−
|The '''lcd.print statement '''will print the count value.
+
|The '''lcd.print''' statement will print the count value.
 
Initially '''count''' is zero. '''Count plus plus''' would be 1.
 
Initially '''count''' is zero. '''Count plus plus''' would be 1.
  
 
|-
 
|-
 
| 06:09
 
| 06:09
−
|When the button is released, it will break the '''while''' '''loop''' and come out of the loop.
+
|When the button is released, it will break the '''while loop''' and come out of the loop.
  
 
|-
 
|-
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|-
 
|-
 
| 06:27
 
| 06:27
−
| Now I'll press the button once and release it.
+
| Now, I'll press the button once and release it.
  
 
|-
 
|-
 
| 06:32
 
| 06:32
−
| Again I'll press and release the button.You can see that the count is increased whenever the button is pressed.
+
| Again I'll press and release the button. You can see that the count is increased whenever the button is pressed.
  
 
|-
 
|-
Line 230: Line 232:
 
|In this tutorial, we learnt to:
 
|In this tutorial, we learnt to:
  
−
Connect an''' LCD''' and '''pushbutton''' to''' Arduino''' board and
+
connect an''' LCD''' and '''pushbutton''' to''' Arduino''' board and
 
   
 
   
−
Write a program to display the count''' '''whenever the pushbutton is pressed.
+
write a program to display the count whenever the '''pushbutton''' is pressed.
  
 
|-
 
|-
Line 240: Line 242:
 
Change the same program to display the count as 2,4,6 and so on.
 
Change the same program to display the count as 2,4,6 and so on.
  
−
'''Compile''' and '''upload''' the program and
+
'''Compile''' and '''upload''' the program.
  
−
Observe the count displayed in the '''LCD'''.
+
And, observe the count displayed in the '''LCD'''.
  
 
|-
 
|-
 
| 07:21
 
| 07:21
−
| The video at the following link summarizes the Spoken Tutorial project. Please download and watch it.
+
| The video at the following link summarizes the '''Spoken Tutorial''' project. Please download and watch it.
  
 
|-
 
|-
 
| 07:29
 
| 07:29
−
| The''' Spoken Tutorial Project''' Team:
+
| The''' Spoken Tutorial Project''' tTeam:
−
conducts workshops and gives certificates.For more details, please write to us.
+
conducts workshops and gives certificates. For more details, please write to us.
  
 
|-
 
|-
Line 259: Line 261:
 
|-
 
|-
 
| 07:42
 
| 07:42
−
| Spoken Tutorial project is funded by NMEICT, MHRD, Government of India.More information on this mission is available at this link.
+
| Spoken Tutorial project is funded by '''NMEICT, MHRD''', Government of India. More information on this mission is available at this link.
  
 
|-
 
|-
 
| 07:53
 
| 07:53
−
|This tutorial has been contributed by FOSSEE and Spoken Tutorial Project, '''IIT Bombay'''. Thanks for watching.
+
|This tutorial has been contributed by '''FOSSEE''' and '''Spoken Tutorial Project, '''IIT Bombay''''''. Thanks for watching.
  
 
|}
 
|}

Latest revision as of 14:04, 23 October 2018

Time Narration
00:01 Welcome to the Spoken Tutorial on Display counter using Arduino.
00:07 In this tutorial, we will learn to:

connect an LCD and a Push button to Arduino board and

write a program to increase the count whenever the pushbutton is pressed.

00:22 To follow this tutorial, you should have:

basic knowledge of electronics and

basic knowledge of C or C++ programming language.

00:34 To record this tutorial, I am using:

Arduino UNO Board,

Ubuntu Linux 14.04 operating system and

Arduino IDE.

00:47 In an earlier tutorial, in this series, we had created a circuit using Arduino and LCD.

We will use the same circuit in this tutorial.

01:00 Here, we will add a pushbutton and make a simple counter.
01:06 We have already learnt about the working of pushbutton in an earlier tutorial.
01:12 Now, let us learn the connection circuit details.
01:17 A pushbutton is connected to a 100 ohm resistor.
01:22 The pushbutton is connected to pin number 7 and a 100 ohm resistor is connected to the ground.
01:31 All other connections are exactly the same as in our previous experiment.
01:37 This is the live setup of the connection as shown in the circuit diagram.
01:44 Now, we will write a program in the Arduino IDE. So, let’s switch to the Arduino IDE.
01:54 First, we need to include the Liquid crystal library.
01:59 Type the code as shown.
02:02 I have initialized a variable lcd of type LiquidCrystal.
02:08 Here, pin number 12 is initialized as Register Select and pin number 11 as Enable.
02:19 The next 4 parameters represent data lines of LCD.
02:25 In the void setup function, type: lcd.begin 16 comma 2 as shown.

This command initializes the LCD with rows and columns.

02:41 Next we will setup the pin number 7 as INPUT. Type the code as shown.
02:49 In another way, we can store the pin number in a variable pbutton.

Let us define the pbutton variable as shown.

03:01 Now we will write the code for void loop.

Whenever the pushbutton is pressed, one count is increased on the LCD.

03:11 We will write a simple 'if' statement to check whether the pushbutton is pressed or not.
03:19 Before displaying the count, let us check the status of the button.
03:25 This command will set the cursor position in the LCD.

lcd.print will print the message.

03:35 We will now compile and upload the program. Now, I will press the pushbutton.
03:43 Here, we see the message “button pressed” in the LCD.

It shows that the pushbutton is working successfully.

03:54 Next, we will modify the program to set a counter.
03:58 We need a variable for counter. Now, we will initialize the variable count to zero.
04:08 Modify the print statement as shown here.

count++ will increase the count by one, each time the button is pressed.

04:21 Let us now compile and upload the program. Now, I will press the pushbutton.
04:29 It didn't work as expected. We see a different count displayed here.

Why is this so?

04:37 This is because we specified the status for button pressed.

But we didn't mention the status for button released.

04:46 The output shows the incremented number based on the button pressed time.
04:52 So, we will write a 'while' statement as shown here.
04:57 This will display the count when the pushbutton is in pressed state.

That means the pin 7 is in HIGH mode.

05:07 When you release the button, the state is LOW and it will come out of the 'while' loop.
05:14 Let me explain the program.
05:17 The program starts with initialization of the LCD. We have the variable pbutton and count.
05:26 Inside the void setup function, we have initialized the LCD with 16 columns and 2 rows.

Then the pinMode is input for the pin number 7.

05:42 In the void loop function, we are checking the condition whether the pushbutton is HIGH or not.
05:49 When the pushbutton is pressed, the cursor is set to position zero comma zero.
05:56 The lcd.print statement will print the count value.

Initially count is zero. Count plus plus would be 1.

06:09 When the button is released, it will break the while loop and come out of the loop.
06:15 Again, if you press the button, the next iteration begins and it increases the count.
06:23 Let us compile and upload the program.
06:27 Now, I'll press the button once and release it.
06:32 Again I'll press and release the button. You can see that the count is increased whenever the button is pressed.
06:42 This brings us to the end of this tutorial. Let us summarize.
06:47 In this tutorial, we learnt to:

connect an LCD and pushbutton to Arduino board and

write a program to display the count whenever the pushbutton is pressed.

07:03 Do the following assignment.

Change the same program to display the count as 2,4,6 and so on.

Compile and upload the program.

And, observe the count displayed in the LCD.

07:21 The video at the following link summarizes the Spoken Tutorial project. Please download and watch it.
07:29 The Spoken Tutorial Project tTeam:

conducts workshops and gives certificates. For more details, please write to us.

07:38 Please post your timed queries in this forum.
07:42 Spoken Tutorial project is funded by NMEICT, MHRD, Government of India. More information on this mission is available at this link.
07:53 This tutorial has been contributed by FOSSEE' and Spoken Tutorial Project, IIT Bombay'. Thanks for watching.

Contributors and Content Editors

Pratik kamble, Sandhya.np14

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