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Kerala-IoT-Challenge

Foxlab Makerspace in association with GTech - Group of Technology Companies in Kerala is launching our prestigious program “Kerala IoT Challenge 2021”, with a vision to mould 100 IoT experts in Kerala, hosting on the µLearn platform. Kerala IoT Challenge is a program designed in 4 levels followed by a hackathon to identify and train quality industry leaders in the IoT domain, while any novice learner can start with layer 1 and others can enter laterally to the desired layer after an evaluation.

About Me

Hi, I am AADHISH S. I am a second year B-Tech Computer Science student @ Mahaguru  Institute  of  Technology.

I have helped in some computer science and electronics projects. I love to learn new things and I like to be updated with development in the Tech Industry. I am Fascinated about Tech, Business and related stuff.

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LEVEL - 1

Experiments

Exp 1 : Hello World LED Blinking

Hardware Needed:

• Arduino Uno Board x1
• USB Cable x1
• LED (Any Color) x1
• 220 OHM Resistor X1
• Breadboard
• Jumper Wires (Male to Male ) x2

Code

int ledPin = 10; // define digital pin 10.
void setup()
{
 pinMode(ledPin, OUTPUT);// define pin with LED connected as output.
}
void loop()
{
 digitalWrite(ledPin, HIGH); // set the LED on.
 delay(1000); // wait for a second.
 digitalWrite(ledPin, LOW); // set the LED off.
 delay(1000); // wait for a second
}

Video

<iframe width="600" height="315" src="https://youtu.be/GxmuL_qJiPE" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

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LEVEL - 2

Experiments

Exp 2 : Traffic Light

Hardware required

• Arduino board x1
• USB cable x1
• Red M5 LED x1
• Yellow M5 LED x1
• Green M5 LED x1
• 220Ω resistor x3
• Breadboard x1
• Breadboard jumper wires as needed

Code

int red =10; // initialize digital pin 8.
int yellow =7; // initialize digital pin 7.
int green =4; // initialize digital pin 4.
void setup()
{
  pinMode(red, OUTPUT);// set red LED pin as “output”
  pinMode(yellow, OUTPUT); // set yellow LED pin as  “output”
  pinMode(green, OUTPUT); // set green LED pin as “output”
}
void loop()
{
  digitalWrite(green, HIGH);// turn on green LED
  delay(5000);// wait 5 seconds
  digitalWrite(green, LOW); // turn off green LED
  for(int i=0;i<3;i++)// blinks for 3 times
  {
   delay(500);// wait 0.5 second
   digitalWrite(yellow, HIGH);// turn on yellow LED
   delay(500);// wait 0.5 second
   digitalWrite(yellow, LOW);// turn off yellow LED
  } 
  delay(500);// wait 0.5 second
  digitalWrite(red, HIGH);// turn on red LED
  delay(5000);// wait 5 seconds
  digitalWrite(red, LOW);// turn off red LED
}

Video

<iframe width="600" height="315" src="https://www.youtube.com/embed/-Da8OEcXSas" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

LEVEL - 3

Experiments

Exp 3 : LED Chasing Effect

Hardware required

• LED x6
• Arduino board x1
• 220Ω resistor x6
• Breadboard x1
• USB cable x1
• Breadboard wire x13

Code

int first= 2;  // the I/O pin for the first LED
int last= 6;   // number of LEDs
void setup(){
 for (int i = start; i < first + last; i ++){
  pinMode(i, OUTPUT);   // set I/O pins as output
 }
}
void loop(){
 for (int i = BASE; i < start +; i ++){
  digitalWrite(i, LOW);    // set I/O pins as “low”, turn off LEDs one by one.
  delay(200);        // delay
}
 for (int i = BASE; i < BASE + NUM; i ++){
  digitalWrite(i, HIGH);    // set I/O pins as “high”, turn on LEDs one by one
  delay(200);        // delay
 }  
}

Video

<iframe width="600" height="315" src="https://www.youtube.com/embed/dLirEbPWCPg" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

LEVEL - 4

Experiments

Exp 4 : Button Controlled LED

Hardware required

• Arduino Uno
• Button switch*1
• Red M5 LED*1
• 220ΩResistor*1
• 10KΩ Resistor*1
• Breadboard*1
• Breadboard Jumper Wire*6
• USB cable*1

Code

int ledpin=11;// initialize pin 11
int inpin=3;// initialize pin 3
int val;// define val
void setup()
{
pinMode(ledpin,OUTPUT);// set LED pin as “output”
pinMode(inpin,INPUT);// set button pin as “input”
}
void loop()
{
val=digitalRead(inpin);// read the level value of pin 3 and assign if to val
if(val==LOW)// check if the button is pressed, if yes, turn on the LED
{ digitalWrite(ledpin,LOW);}
else
{ digitalWrite(ledpin,HIGH);}
}

Video

<iframe width="600" height="315" src="https://www.youtube.com/embed/xiQ2F2ps62I" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

LEVEL - 5

Experiments

Exp 5 : Buzzer

Hardware required

• Arduino Uno
• Buzzer x1
• Breadboard x1
• Breadboard Jumper Wire x2
• USB cable x1

Code

int buzzer=8;// initialize digital IO pin that controls the buzzer
void setup() 
{ 
  pinMode(buzzer,OUTPUT);// set pin mode as “output”
} 
void loop() 
{
digitalWrite(buzzer, HIGH); // produce sound
}

Video

<iframe width="600" height="315" src="https://www.youtube.com/embed/QN5DBPFhgCU" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> ____

LEVEL - 6

Experiments

Exp 6 : RGB LED

Hardware required

• Arduino Uno
• USB Cable x1
• RGB LED x1
• Resistor x3
• Breadboard jumper wire x5

Code

int redpin = 11; //select the pin for the red LED
int bluepin =10; // select the pin for the blue LED
int greenpin =9;// select the pin for the green LED
int val;
void setup() {
  pinMode(redpin, OUTPUT);
  pinMode(bluepin, OUTPUT);
  pinMode(greenpin, OUTPUT);
  Serial.begin(9600);
}
void loop() 
{
for(val=255; val>0; val--)
  {
  analogWrite(11, val);
  analogWrite(10, 255-val);
  analogWrite(9, 128-val);
  delay(1); 
  }
for(val=0; val<255; val++)
  {
  analogWrite(11, val);
  analogWrite(10, 255-val);
  analogWrite(9, 128-val);
  delay(1); 
  }
Serial.println(val, DEC);
}

Video

<iframe width="600" height="315" src="https://www.youtube.com/embed/CHlVNigktpU" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>

LEVEL - 7

Experiments

Exp 7 : LDR Light Sensor

Hardware required

• Arduino Uno Board
• Photo Resistorx1
• Red M5 LED x1
• 10KΩ Resistor x1
• 220Ω Resistor x1
• Breadboard x1
• Breadboard Jumper Wire x5
• USB cable x1

Code

void setup() {
  pinMode(8,INPUT);
  pinMode(9,OUTPUT);
  Serial.begin(9600); //initialise serial monitor
}

void loop() {
  int temp=digitalRead(8);       //assign value of LDR sensor to a temporary variable
  Serial.println("Intensity="); //print on serial monitor using ""
  Serial.println(temp);         //display output on serial monitor
  delay(300);
  if(temp==HIGH)               //HIGH means,light got blocked
  digitalWrite(9,HIGH);        //if light is not present,LED on
  else
  digitalWrite(9,LOW);         //if light is present,LED off
}

Video

<iframe width="600" height="315" src="https://www.youtube.com/embed/ae_OpAmNPWU" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> ____

Experiment 8 - Flame Sensor

Components Required

• Arduino Uno Board
• IR Reciever
• LED*1
• 10KΩ Resistor*1
• Breadboard*1
• Breadboard Jumper Wire*4
• USB cable*1

Code

int flame=0;// select analog pin 0 for the sensor
int LED=9;// select digital pin 9 for the LED
int val=0;
 void setup() 
{
 pinMode(LED,OUTPUT); 
 pinMode(flame,INPUT); 
 Serial.begin(9600);
void loop() 
{ 
  val=analogRead(flame);// read the analog value of the sensor 
  Serial.println(val);// output and display the analog value
  if(val>=600)// when the analog value is larger than 600, the led will glow
  {  
   digitalWrite(LED,HIGH); 
   }else 
   {  
     digitalWrite(LED,LOW); 
    }
   delay(500); 
}

Experiment 9 - LM35 Temperature sensor

Components Required

• Arduino Uno Board
• LM35 Sensor
• Breadboard*1
• Breadboard Jumper Wire*3
• USB cable*1

Code

int sensorPin = 0; // initialize analog pin 0 for LM35 temperature sensor
void setup()
{
Serial.begin(9600);// set baud rate at”9600”
}
void loop()
{
int val;// define variable
int dat;// define variable
val=analogRead(sensorPin);// read the analog value of the sensor and assign it to val
dat=(125*val)>>8;// temperature calculation formula
Serial.print("Tep");// output and display characters beginning with Tep
Serial.print(dat);// output and display value of dat
Serial.println("C");// display “C” characters
delay(500);// wait for 0.5 second
}

Experiment 10 - IR Remote Control Using TSOP

Components Required

• Arduino Uno Board
• TSOP Sensor
• LED*4
• resistor(220 ohm)*4
• Breadboard*1
• Breadboard Jumper Wire*8
• USB cable*1

Code

#include <IRremote.h>
const int RECV_PIN = 4 ;
int led1 = 5;
int led2 = 6;
int led3 = 7;
int led4 = 8;
int itsONled[] = {0,0,0,0,0};
#define code1  48511
#define code2  38079
#define code3  49371
#define code4  15355
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
pinMode(led1,OUTPUT);
pinMode(led2,OUTPUT);
pinMode(led3,OUTPUT);
pinMode(led4,OUTPUT);
irrecv.enableIRIn();
}
void loop() {
if (irrecv.decode(&results)) {
unsigned int value = results.value;
switch(value) {
case code1:
if(itsONled[1] == 1) {        // if first led is on then
digitalWrite(led1, LOW);   // turn it off when button is pressed
itsONled[1] = 0;           // and set its state as off
} else {                      // else if first led is off
digitalWrite(led1, HIGH); // turn it on when the button is pressed
itsONled[1] = 1;          // and set its state as on
}
break;
case code2:
if(itsONled[2] == 1) {
digitalWrite(led2, LOW);
itsONled[2] = 0;
} else {
digitalWrite(led2, HIGH);
itsONled[2] = 1;
}
break;
case code3:
if(itsONled[3] == 1) {
digitalWrite(led3, LOW);
itsONled[3] = 0;
} else {
digitalWrite(led3, HIGH);
itsONled[3] = 1;
}
break;

case code4:
if(itsONled[4] == 1) {
digitalWrite(led4, LOW);
itsONled[4] = 0;
} else {
digitalWrite(led4, HIGH);
itsONled[4] = 1;
}
break;

}
Serial.println(value);
irrecv.resume();
}
}

Experiment 11 - Potentiometer analog Value Reading

Components Required

• Arduino Uno Board
• Potentiometer*1
• LED*1
• 220Ω Resistor*1
• Breadboard*1
• Breadboard Jumper Wire*5
• USB cable*1

ADDED

** i added a LED on output of potentiometer, so i can adjut LED’s brightness

Code

int vr = 0;
int val;
void setup() {
  // put your setup code here, to run once:
  pinMode(vr,INPUT);
  Serial.begin(9600);
}
void loop() {
// put your main code here, to run repeatedly:
val = analogRead(vr);
Serial.println(val);
}

Experiment 12 - 7 Segment Display

Components Required

• Arduino Uno Board
• 1-digit LED Segment Display*1
• LED*1
• 220Ω Resistor*8
• Breadboard*1
• Breadboard Jumper Wire*10
• USB cable*1

Code

int a=10;// set digital pin 7 for segment a
int b=11;// set digital pin 6 for segment b
int c=5;// set digital pin 5 for segment c
int d=6;// set digital pin 10 for segment d
int e=7;// set digital pin 11 for segment e
int f=8;// set digital pin 8 for segment f
int g=9;// set digital pin 9 for segment g
int dp=4;// set digital pin 4 for segment dp
void digital_0(void) // display number 0
{
unsigned char j;
digitalWrite(a,HIGH);
digitalWrite(b,HIGH);
digitalWrite(c,HIGH);
digitalWrite(d,HIGH);
digitalWrite(f,HIGH);
digitalWrite(e,HIGH);
digitalWrite(g,LOW);
digitalWrite(dp,LOW);
}
void digital_1(void) // display number 1
{
unsigned char j;
digitalWrite(a,LOW);
digitalWrite(b,HIGH);
digitalWrite(c,HIGH);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(dp,LOW);
}
void digital_2(void) // display number 2
{
unsigned char j;
digitalWrite(b,HIGH);
digitalWrite(a,HIGH);
digitalWrite(c,LOW);
digitalWrite(d,HIGH);
digitalWrite(g,HIGH);
digitalWrite(dp,LOW);
digitalWrite(e,HIGH);
digitalWrite(f,LOW);
}
void digital_3(void) // display number 3
{digitalWrite(g,HIGH);
digitalWrite(a,HIGH);
digitalWrite(b,HIGH);
digitalWrite(c,HIGH);
digitalWrite(d,HIGH);
digitalWrite(dp,LOW);
digitalWrite(f,LOW);
digitalWrite(e,LOW);
}
void digital_4(void) // display number 4
{digitalWrite(c,HIGH);
digitalWrite(b,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(dp,LOW);
digitalWrite(a,LOW);
digitalWrite(e,LOW);
digitalWrite(d,LOW);
}
void digital_5(void) // display number 5
{
unsigned char j;
digitalWrite(a,HIGH);
digitalWrite(b, LOW);
digitalWrite(c,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e, LOW);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(dp,LOW);
}
void digital_6(void) // display number 6
{
unsigned char j;
for(j=7;j<=11;j++)
digitalWrite(j,HIGH);
digitalWrite(c,HIGH);
digitalWrite(dp,LOW);
digitalWrite(b,LOW);
}
void digital_7(void) // display number 7
{
unsigned char j;
digitalWrite(c,HIGH);
digitalWrite(b,HIGH);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(dp,LOW);
digitalWrite(a,HIGH);
digitalWrite(e,LOW);
digitalWrite(d,LOW);
}
void digital_8(void) // display number 8
{
unsigned char j;
for(j=5;j<=11;j++)
digitalWrite(j,HIGH);
digitalWrite(dp,LOW);
}
void digital_9(void) // display number 5
{
unsigned char j;
digitalWrite(a,HIGH);
digitalWrite(b,HIGH);
digitalWrite(c,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e, LOW);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(dp,LOW);
}
void setup()
{
int i;// set variable
for(i=4;i<=11;i++)
pinMode(i,OUTPUT);// set pin 4-11as “output”
}
void loop()
{
while(1)
{
digital_0();// display number 0
delay(1000);// wait for 1s
digital_1();// display number 1
delay(1000);// wait for 1s
digital_2();// display number 2
delay(1000); // wait for 1s
digital_3();// display number 3
delay(1000); // wait for 1s
digital_4();// display number 4
delay(1000); // wait for 1s
digital_5();// display number 5
delay(1000); // wait for 1s
digital_6();// display number 6
delay(1000); // wait for 1s
digital_7();// display number 7
delay(1000); // wait for 1s
digital_8();// display number 8
delay(1000); // wait for 1s
digital_9();// display number 9
delay(1000); // wait for 1s
}}

Assignment 1 - Automatic Night Lamp

Components Required

• Arduino Uno Board
• Photo Resistor*1
• Red M5 LED*1
• 10KΩ Resistor*1
• 220Ω Resistor*1
• Breadboard*1
• Breadboard Jumper Wire*5
• USB cable*1

LDR

Code

int led = 4;
int ldr = 0;
int ldr_value;
void setup() {
  // put your setup code here, to run once:
  pinMode(led,OUTPUT);
  pinMode(ldr,INPUT);
  Serial.begin(9600);
}
void loop() {
// put your main code here, to run repeatedly:
ldr_value = analogRead(ldr);
Serial.println(ldr_value);
if(ldr_value < 150){
digitalWrite(led,HIGH);
}else{
digitalWrite(led,LOW);
}
}
}

Assignment 2 Digital Dice Using 7 Segment Display

Components Required

• Arduino Uno Board
• 7 Segment Display
• LED*1
• 220Ω Resistor*8
• Breadboard*1
• Breadboard Jumper Wire*12
• USB cable*1

Code

int a=10;// set digital pin 7 for segment a
int b=11;// set digital pin 6 for segment b
int c=5;// set digital pin 5 for segment c
int d=6;// set digital pin 10 for segment d
int e=7;// set digital pin 11 for segment e
int f=8;// set digital pin 8 for segment f
int g=9;// set digital pin 9 for segment g
int dp=4;// set digital pin 4 for segment dp
int btnPin = 3;
int btnState;
long ran;
void digital_0(void) // display number 0
{
unsigned char j;
digitalWrite(a,HIGH);
digitalWrite(b,HIGH);
digitalWrite(c,HIGH);
digitalWrite(d,HIGH);
digitalWrite(f,HIGH);
digitalWrite(e,HIGH);
digitalWrite(g,LOW);
digitalWrite(dp,LOW);
}
void digital_1(void) // display number 1
{
unsigned char j;
digitalWrite(a,LOW);
digitalWrite(b,HIGH);
digitalWrite(c,HIGH);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(dp,LOW);
}
void digital_2(void) // display number 2
{
unsigned char j;
digitalWrite(b,HIGH);
digitalWrite(a,HIGH);
digitalWrite(c,LOW);
digitalWrite(d,HIGH);
digitalWrite(g,HIGH);
digitalWrite(dp,LOW);
digitalWrite(e,HIGH);
digitalWrite(f,LOW);
}
void digital_3(void) // display number 3
{digitalWrite(g,HIGH);
digitalWrite(a,HIGH);
digitalWrite(b,HIGH);
digitalWrite(c,HIGH);
digitalWrite(d,HIGH);
digitalWrite(dp,LOW);
digitalWrite(f,LOW);
digitalWrite(e,LOW);
}
void digital_4(void) // display number 4
{digitalWrite(c,HIGH);
digitalWrite(b,HIGH);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(dp,LOW);
digitalWrite(a,LOW);
digitalWrite(e,LOW);
digitalWrite(d,LOW);
}
void digital_5(void) // display number 5
{
unsigned char j;
digitalWrite(a,HIGH);
digitalWrite(b, LOW);
digitalWrite(c,HIGH);
digitalWrite(d,HIGH);
digitalWrite(e, LOW);
digitalWrite(f,HIGH);
digitalWrite(g,HIGH);
digitalWrite(dp,LOW);
}
void digital_6(void) // display number 6
{
unsigned char j;
for(j=6;j<=11;j++)
digitalWrite(j,HIGH);
digitalWrite(c,HIGH);
digitalWrite(dp,LOW);
digitalWrite(b,LOW);
}
void setup()
{
int i;// set variable
for(i=4;i<=11;i++)
pinMode(i,OUTPUT);// set pin 4-11as “output”
pinMode(3,INPUT);
randomSeed(analogRead(0));
Serial.begin(9600);
}
void loop()
{
btnState = digitalRead(btnPin);
if (btnState == HIGH){
ran = random(1,7);
Serial.println(ran);
if (ran == 1){
digital_1();
delay(2000);
}
if (ran == 2){
digital_2();
delay(2000);
}
if (ran == 3){
digital_3();
delay(2000);
}
if (ran == 4){
digital_4();
delay(2000);
}
if (ran == 5){
digital_5();
delay(2000);
}
if (ran == 6){
digital_6();
delay(2000);
}
}
else{
digitalWrite(a,LOW);
digitalWrite(b,LOW);
digitalWrite(c,LOW);
digitalWrite(d,LOW);
digitalWrite(e,LOW);
digitalWrite(f,LOW);
digitalWrite(g,LOW);
digitalWrite(dp,LOW);
}
}