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DIFFICULTY LEVEL :

Obstacle detection using Infrared Sensor

CODE FOR THE PROJECTint LED = 13; // Use the onboard Uno LEDint obstaclePin = 7;  // This is our input pinint hasObstacle = HIGH;  // HIGH MEANS NO OBSTACLEvoid setup() {  pinMode(LED, OUTPUT);  pinMode(obstaclePin, INPUT);  Serial.begin(9600);  }void loop() {  hasObstacle = digitalRead(obstaclePin); //Reads the output of the obstacle sensor from the 7th PIN of the Digital section of the arduino  if (hasObstacle == HIGH) // means something is ahead, so illuminates the 13th Port connected LED  {    Serial.println("Stop something is ahead!!" ...

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DIFFICULTY LEVEL :

Controlling a relay using a Node MCU

This project can be used to control any device at home, through a relay. The relay is an electronic switch which can connected in parallel to the switches in your house. 1.       Node MCU- 1 no. 2.       Female to female Jumper Wires- 3 nos. 3.       Relay Module 5V- 1 no. 4.       An android phone

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DIFFICULTY LEVEL :

Adjust the brightness of an LED

The potentiometer is a variable resistor which we will use to control the brightness of an LED. We do this by varying the input signal on the Arduino to get a proportional output for our LED.You will need:1.       Arduino Uno- 1 no.2.       LED- 1 no.3.       Resistor of 150 to 200 ohms(depending on your LED) – 1 no.4.       10K Pot- 1 no.5.       Soldering iron6.       Soldering lead and flux7. &nbsp ...

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DIFFICULTY LEVEL :

Ultrasonic Range Detector Using Arduino and SR-04

CODE FOR THE PROJECT :#define trigPin 13 #define echoPin 12 void setup() { Serial.begin (9600); pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); } void loop() { long duration, distance; digitalWrite(trigPin, LOW); delayMicroseconds(2); digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); duration = pulseIn(echoPin, HIGH); distance = (duration/2) / 29.1; if (distance >= 200 || distance <= 0) { Serial.println("Out of range"); } else { Serial.print(distance); ...

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DIFFICULTY LEVEL :

On and OFF of relay module through Arduino

 //Code for the projectint relay = 2; // set output pin as digital pin 2 void setup() {   // put your setup code here, to run once:   pinMode(relay,OUTPUT);// pin 2 is made as output }   void loop() {   // put your main code here, to run repeatedly:   digitalWrite(relay,HIGH);// switch is on   delay(10000); //10s on   digitalWrite(relay,LOW);// switch is off   delay(10000);// 10s off   }

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