Arduino

Arduino Documentation Blog Entry

 

There are 4 tasks that will be explained in this page:

1.     Input devices:

a.     Interface a potentiometer analog input to maker UNO board and measure/show its signal in serial monitor Arduino IDE.

b.     Interface a LDR to maker UNO board and measure/show its signal in serial monitor Arduino IDE

2.     Output devices:

a.     Interface 3 LEDs (Red, Yellow, Green) to maker UNO board and program it to perform something (fade or flash etc)​

b.     Include the pushbutton on the MakerUno board to start/stop part 2.a. above

For each of the tasks, I will describe:

1.     The program/code that I have used and explanation of the code. The code is in writable format (not an image).

2.     The sources/references that I used to write the code/program.

3.     The problems I encountered and how I fixed them.

4.     The evidence that the code/program worked in the form of video of the executed program/code.

Finally, I will describe:

5.     My Learning reflection on the overall Arduino programming activities.

  Input devices: Interface a potentiometer analog input to maker UNO board and measure/show its signal in serial monitor Arduino IDE.

1.     Below are the code/program I have used and the explanation of the code.

Code/program in writeable format

Explanation of the code

int sensorValue = 0; 

void setup() {

  // put your setup code here, to run once:

pinMode(A0, INPUT);

pinMode(13, OUTPUT);

Serial.begin (9600);

}



void loop() {

  // put your main code here, to run repeatedly:

sensorValue = analogRead(A0);

digitalWrite(13, HIGH);

delay(sensorValue);

digitalWrite(13, LOW);

delay(sensorValue);

}

 

We set A0 as the input and Pin 13 as the output.

 

 In this case, A0 is connected to the potentiometer and the LED is connected to pin 13.

The code in the loop reads the value from the potentiometer and controls the brightness of the LED base on the input reading.













2.   


 

 

 








 

Below are the hyperlink to the sources/references that I used to write the code/program.

-

 

 

3.     Below are the problems I have encountered and how I fixed them.

When we are coding using the programme, we thought that the cathode and anode of the LED does not matter and we just connected them randomly. We fixed this by reconnecting the LED.

 

 

4.     Below is the short video as the evidence that the code/program work.

 


 

Input devices: Interface a LDR to maker UNO board and measure/show its signal in serial monitor Arduino IDE:

1.     Below are the code/program I have used and the explanation of the code.

Code/program in writeable format

Explanation of the code

int light;

void setup() {

Serial.begin(9600);

}

 

void loop() {

  light= analogRead(A0);

 if(light<50){

   digitalWrite(13, LOW); 

 }else{

   digitalWrite(13, HIGH);

 }

  Serial.println(light);

  delay(0);

}

 

Since A0 is connected to the LDR, analogRead(A0) basically reads the value of the LDR. If the value is below 50, set Pin 13(LED) to low If the value of LDR is higher than 50, set Pin 13 to High. The Serial.printIn(light) records the value detected from the LDR and will appear on the serial monitor.

 

 







2.     










 

Below are the hyperlink to the sources/references that I used to write the code/program.

-

 

 

3.     Below are the problems I have encountered and how I fixed them.

4.     We faced problems connecting the serial monitor. We overcame this problem by asking some other group

 

 

5.     Below is the short video as the evidence that the code/program work.


 


 

 

 

 

Output devices: Interface 3 LEDs (Red, Yellow, Green) to maker UNO board and program it to perform something (fade or flash etc)

1.     Below are the code/program I have used and the explanation of the code.

Code/program in writeable format

Explanation of the code

int brightness = 0; 

void setup() {

  // put your setup code here, to run once:

pinMode(9, OUTPUT);

pinMode(10, OUTPUT);

pinMode(11, OUTPUT);

}



void loop() {

  // put your main code here, to run repeatedly:

for (brightness = 0; brightness <= 255; brightness ++);

analogWrite(9, brightness); 

delay(150);

analogWrite(10, brightness); 

delay(150);

analogWrite(11, brightness); 

delay(150);

{

for (brightness = 255; brightness >= 0; brightness --);

analogWrite(9, brightness); 

delay(150);

analogWrite(10, brightness); 

delay(150);

analogWrite(11, brightness); 

delay(150);

}



}

 

At the start, we set brightness of all LED to 0 and we establish that pin 9,10,11 are the outputs.

 

We next write the code  for (brightness = 0; brightness <= 255; brightness ++);, this code combined with the delay will give off a fading effect.

 

 

2.     


























 








 

Below are the hyperlink to the sources/references that I used to write the code/program.

NIL

 

 

3.     Below are the problems I have encountered and how I fixed them.

 

We didn’t face much problem

4.     Below is the short video as the evidence that the code/program work.


 


 

 

 

Output devices: Include pushbutton to start/stop the previous task

1.     Below are the code/program I have used and the explanation of the code.

Code/program in writeable format

Explanation of the code

int brightness = 0; 

void setup() {

  // put your setup code here, to run once:

Serial.begin(9600);

pinMode(2, INPUT_PULLUP);

pinMode(9, OUTPUT);

pinMode(10, OUTPUT);

pinMode(11, OUTPUT);

}

 

void loop() {

int sensorVal = digitalRead(2);

  //print out the value of the pushbutton

  Serial.println(sensorVal);

  // put your main code here, to run repeatedly:

   if (sensorVal == HIGH) {

    digitalWrite(9,LOW);

    digitalWrite(10,LOW);

    digitalWrite(11,LOW);

for (brightness = 0; brightness <= 255; brightness ++);

analogWrite(9, brightness); 

delay(150);

analogWrite(10, brightness); 

delay(150);

analogWrite(11, brightness); 

delay(150);

 } else {

    for (int i=0; i < 5; i++)

    {

      digitalWrite(9,HIGH);

      delay(500);

      digitalWrite(9,LOW);

      delay(500);

      digitalWrite(10,HIGH);

      delay(500);

      digitalWrite(10,LOW);

      delay(500);

      digitalWrite(11,HIGH);

      delay(500);

      digitalWrite(11,LOW);

      delay(500);

  

{

for (brightness = 255; brightness >= 0; brightness --);

analogWrite(9, brightness); 

delay(150);

analogWrite(10, brightness); 

delay(150);

analogWrite(11, brightness); 

delay(150);

}

    }

}}

 

This code works by adding a input. At the void setup we establish pin 2 to be the input. We then make it so the lights will fade on and off when the button is pressed.

 

 












































2.     











 

Below are the hyperlink to the sources/references that I used to write the code/program.

-

 

 

3.     Below are the problems I have encountered and how I fixed them.

I had trouble coding in the button because I forgot to add serialbegin(9600). I then added the SerialBegin and the code works

 

 

4.     Below is the short video as the evidence that the code/program work.



 

 

Below is my Learning Reflection on the overall Arduino Programming activities.

This practical, this practical... I mean its all right and not that bad. We really get to be creative and use what we learn in the previous CPDD lessons and apply it.  For this practical, we need to make a Pegasus and the wings of the Pegasus must flap. I have no idea what a Pegasus is and my teammate describe it as a horse with wing. We then discussed as a group to decide how to make the wing flap. It was pretty obvious to use the servo provided. We used the servo and connected the wire to the servo and the wings. We decided to add delay for our servo so the wings appear to flap more majestically.

For this practical, we also need to apply one more things that we learn. Horse and pony, whats the difference? Thats right i see no difference. So we decided to code in the theme song of My Little Pony. We made it so that the theme song play, then the wings flap, it makes it seem like it flies away and live happily ever after.

The hardest part of this practitcal is not even the coding, but the assembly of the pegasus. We spend a good hour trying to put the pegasus together. However, it all worked out well in the end.


This is the code we used:

/* Sweep

 by BARRAGAN <http://barraganstudio.com>

 This example code is in the public domain.


 modified 8 Nov 2013

 by Scott Fitzgerald

 https://www.arduino.cc/en/Tutorial/LibraryExamples/Sweep

*/

#define NOTE_B0  31

#define NOTE_C1  33

#define NOTE_CS1 35

#define NOTE_D1  37

#define NOTE_DS1 39

#define NOTE_E1  41

#define NOTE_F1  44

#define NOTE_FS1 46

#define NOTE_G1  49

#define NOTE_GS1 52

#define NOTE_A1  55

#define NOTE_AS1 58

#define NOTE_B1  62

#define NOTE_C2  65

#define NOTE_CS2 69

#define NOTE_D2  73

#define NOTE_DS2 78

#define NOTE_E2  82

#define NOTE_F2  87

#define NOTE_FS2 93

#define NOTE_G2  98

#define NOTE_GS2 104

#define NOTE_A2  110

#define NOTE_AS2 117

#define NOTE_B2  123

#define NOTE_C3  131

#define NOTE_CS3 139

#define NOTE_D3  147

#define NOTE_DS3 156

#define NOTE_E3  165

#define NOTE_F3  175

#define NOTE_FS3 185

#define NOTE_G3  196

#define NOTE_GS3 208

#define NOTE_A3  220

#define NOTE_AS3 233

#define NOTE_B3  247

#define NOTE_C4  262

#define NOTE_CS4 277

#define NOTE_D4  294

#define NOTE_DS4 311

#define NOTE_E4  330

#define NOTE_F4  349

#define NOTE_FS4 370

#define NOTE_G4  392

#define NOTE_GS4 415

#define NOTE_A4  440

#define NOTE_AS4 466

#define NOTE_B4  494

#define NOTE_C5  523

#define NOTE_CS5 554

#define NOTE_D5  587

#define NOTE_DS5 622

#define NOTE_E5  659

#define NOTE_F5  698

#define NOTE_FS5 740

#define NOTE_G5  784

#define NOTE_GS5 831

#define NOTE_A5  880

#define NOTE_AS5 932

#define NOTE_B5  988

#define NOTE_C6  1047

#define NOTE_CS6 1109

#define NOTE_D6  1175

#define NOTE_DS6 1245

#define NOTE_E6  1319

#define NOTE_F6  1397

#define NOTE_FS6 1480

#define NOTE_G6  1568

#define NOTE_GS6 1661

#define NOTE_A6  1760

#define NOTE_AS6 1865

#define NOTE_B6  1976

#define NOTE_C7  2093

#define NOTE_CS7 2217

#define NOTE_D7  2349

#define NOTE_DS7 2489

#define NOTE_E7  2637

#define NOTE_F7  2794

#define NOTE_FS7 2960

#define NOTE_G7  3136

#define NOTE_GS7 3322

#define NOTE_A7  3520

#define NOTE_AS7 3729

#define NOTE_B7  3951

#define NOTE_C8  4186

#define NOTE_CS8 4435

#define NOTE_D8  4699

#define NOTE_DS8 4978


#include <Servo.h>



// notes in the melody:

int melody[] = {

  NOTE_D4, NOTE_F4, NOTE_D4, NOTE_C4, NOTE_F4, 0, NOTE_AS3, NOTE_C4, NOTE_AS3, NOTE_A3, NOTE_F3, 0, NOTE_G3, NOTE_A3, NOTE_AS3, NOTE_A3, NOTE_AS3, NOTE_C4

};


// note durations: 4 = quarter note, 8 = eighth note, etc.:

int noteDurations[] = {

  4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4

};


Servo myservo;  // create servo object to control a servo

// twelve servo objects can be created on most boards


int pos = 10;    // variable to store the servo position


void setup() {

  myservo.attach(9);  // attaches the servo on pin 9 to the servo object

  // iterate over the notes of the melody:

  for (int thisNote = 0; thisNote < 18; thisNote++) {


    // to calculate the note duration, take one second divided by the note type.

    //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.

    int noteDuration = 1000 / noteDurations[thisNote];

    tone(8, melody[thisNote], noteDuration);


    // to distinguish the notes, set a minimum time between them.

    // the note's duration + 30% seems to work well:

    int pauseBetweenNotes = noteDuration * 1.30;

    delay(pauseBetweenNotes);

    // stop the tone playing:

    noTone(8);

  }

}




void loop() {

  for (pos = 10; pos <= 180; pos += 1) { // goes from 0 degrees to 180 degrees

    // in steps of 1 degree

    myservo.write(pos);              // tell servo to go to position in variable 'pos'

    delay(0);                       // waits 15 ms for the servo to reach the position

  }

  for (pos = 10; pos >= 180; pos -= 1) { // goes from 180 degrees to 0 degrees

    myservo.write(pos);              // tell servo to go to position in variable 'pos'

    delay(0);                       // waits 15 ms for the servo to reach the position

  }

}


This is our flying pony in action


pretty slay if u ask me ;)





 

Comments

Post a Comment

Popular posts from this blog

About Me

  Welcome to my blog .  My name is Alvin Chuah and im a year 2 DCHE student. This will be the place where i document what i had learn during the Chemical Product Design and Development module (CPDD). A goal i set for myself would to probably get a B for this module. To achieve this goal i will most likely have to put in effort in making my blogs. Blogs are worth 30% apparently and if i can get like 20%, i am now closer in achieving my goal. Another goal i want to achieve is to master 3d printing. This is a very important skill that i must master as i will probably be using it. This skill was taught in the ICPD module but i did not really get the hang of it. Im hoping to make use of CPDD to master 3D printing. In order to achieve this goal, i will try to use Fusion 360 on my own to maynbe play around and familiarise myself with all the functions.
Read more