Arduino Codes PDF

LED blinking code using an Arduino Code:- int ledPin = 10; void setup() { pinMode(ledPin, OUTPUT); } void loop() { digitalWrite(ledPin, HIGH); delay(1000); digitalWrite(ledPin, LOW); delay(1000); } LED blinking code using an Arduino int ledPin1 = 9; int ledPin2 = 10; int ledPin3 = 11; v...

LED blinking code using an Arduino Code:- int ledPin = 10; void setup() { pinMode(ledPin, OUTPUT); } void loop() { digitalWrite(ledPin, HIGH); delay(1000); digitalWrite(ledPin, LOW); delay(1000); } LED blinking code using an Arduino int ledPin1 = 9; int ledPin2 = 10; int ledPin3 = 11; void setup() { pinMode(ledPin1, OUTPUT); pinMode(ledPin2, OUTPUT); pinMode(ledPin3, OUTPUT); } void loop() { digitalWrite(ledPin1, HIGH); digitalWrite(ledPin2, HIGH); digitalWrite(ledPin3, HIGH); delay(1000); digitalWrite(ledPin1, LOW); digitalWrite(ledPin2, LOW); digitalWrite(ledPin3, LOW); delay(1000); } Series and Parallel Combinations RGB LED void setup() { pinMode(9, OUTPUT); pinMode(10, OUTPUT); pinMode(11, OUTPUT); } void loop() { analogWrite(9, 255); analogWrite(10, 0);  analogWrite(11, 0); delay(1000); analogWrite(9, 0); analogWrite(10, 255); analogWrite(11, 0); delay(1000); analogWrite(9, 0); analogWrite(10, 0); analogWrite(11, 255); delay(1000); analogWrite(9, 255); analogWrite(10, 255); analogWrite(11, 0); delay(1000); analogWrite(9, 0); analogWrite(10, 255); analogWrite(11, 255); delay(1000); analogWrite(9, 255); analogWrite(10, 0); analogWrite(11, 255); delay(1000); analogWrite(9, 252); analogWrite(10, 186); analogWrite(11, 3); delay(1000); analogWrite(9, 3); analogWrite(10, 244); analogWrite(11, 25); delay(1000); } Servo Motor #include Servo myServo; int servoPin = 9; void setup() { myServo.attach(servoPin); // Attach the servo to pin 9 } void loop() { // Move the servo to 0 degrees myServo.write(0); delay(1000); // Move the servo to 90 degrees myServo.write(90); delay(1000); // Move the servo to 180 degrees myServo.write(180); delay(1000); } PIR (Passive Infrared Sensor) int pirSensorPin = 2; int ledPin = 13; void setup() { Serial.begin(9600); pinMode(pirSensorPin, INPUT); pinMode(ledPin, OUTPUT); digitalWrite(ledPin, LOW); } void loop() { int motionDetected = digitalRead(pirSensorPin); if (motionDetected == HIGH) { digitalWrite(ledPin, HIGH); Serial.println("Motion detected!"); } else { digitalWrite(ledPin, LOW); Serial.println("No motion."); } delay(500); } UltraSonic Sensor // Define pins for HC-SR04 const int trigPin = 9; // Trigger Pin const int echoPin = 10; // Echo Pin void setup() { // Initialize serial communication for displaying the result Serial.begin(9600);  // Set trigPin as OUTPUT and echoPin as INPUT pinMode(trigPin, OUTPUT); pinMode(echoPin, INPUT); } void loop() { // Ensure that the trigger pin is low digitalWrite(trigPin, LOW); delayMicroseconds(2); // Send a 10µs high pulse to trigger the sensor digitalWrite(trigPin, HIGH); delayMicroseconds(10); digitalWrite(trigPin, LOW); // Read the time it takes for the echo to be received (in microseconds) long duration = pulseIn(echoPin, HIGH); // Calculate distance in cm (Speed of sound = 343 m/s or 0.0343 cm/µs) long distance = duration * 0.0343 / 2; // Print the distance on the serial monitor Serial.print("Distance: "); Serial.print(distance); Serial.println(" cm"); // Wait before taking another reading delay(500); } Temperature Sensor Code // Define the pin for the temperature sensor int sensorPin = A0; void setup() { Serial.begin(9600); // Start serial communication at 9600 baud rate } void loop() { int sensorValue = analogRead(sensorPin); // Read the analog value from LM35 float temperature = (sensorValue * 5.0 * 100.0) / 1024.0; // Convert to Celsius Serial.print("Temperature: "); Serial.print(temperature); Serial.println(" °C"); delay(1000); // Update every 1 second }