Arduino Music Stand

To put in practice what I've learned from the Arduino course with Zahraa Khalil from LinkedIn

Learning Arudino: Foundations

: Interfacing with Analog Devices

: Interfacing with hardware 

h Hardware

I decided to create a music stand that would open and close automatically holding my sheet of music. 

the whole concept is very simple:

a light sensor detects when the light is blocked while I pass my hands over the sensor, Arduino sends a command to a servo motor attached to a board which hods or release the paper.

VIDEO: 

the LEDs work as a 4 second countdown until the door closes and holds the paper 

Code:

#include <Servo.h>

Servo alavanca;

int LED1=9;

int LED2=8;

int LED3=7;

int LED4=6;

int LED0=5;

int servoPin=10;

void setup() {

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

Serial.begin(9600);

pinMode(9, OUTPUT);

pinMode(8, OUTPUT);

pinMode(7, OUTPUT);

pinMode(6, OUTPUT);

pinMode(5, OUTPUT);

alavanca.attach(servoPin);

}

void loop() {

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

int lightSensor = analogRead(A0);

Serial.println(lightSensor);

  if (lightSensor <= 180) {

    digitalWrite(LED0, HIGH);

    delay(500);

    alavanca.write(80);

    delay(100);

    digitalWrite(LED0, LOW);

    digitalWrite(LED1, HIGH);

    digitalWrite(LED2, HIGH);

    digitalWrite(LED3, HIGH);

    digitalWrite(LED4, HIGH);

    delay(1000);

    digitalWrite(LED0, LOW);

    digitalWrite(LED1, LOW);

    digitalWrite(LED2, HIGH);

    digitalWrite(LED3, HIGH);

    digitalWrite(LED4, HIGH);

    delay(1000);

    digitalWrite(LED0, LOW);

    digitalWrite(LED1, LOW);

    digitalWrite(LED2, LOW);

    digitalWrite(LED3, HIGH);

    digitalWrite(LED4, HIGH);

    delay(1000);

    digitalWrite(LED0, LOW);

    digitalWrite(LED1, LOW);

    digitalWrite(LED2, LOW);

    digitalWrite(LED3, LOW);

    digitalWrite(LED4, HIGH);

    delay(1000);

    digitalWrite(LED0, LOW);

    digitalWrite(LED1, LOW);

    digitalWrite(LED2, LOW);

    digitalWrite(LED3, LOW);

    digitalWrite(LED4, LOW);

    delay(30);

  }

else {

  

  delay(150);

  alavanca.write(0);

  digitalWrite(LED0, HIGH);

}

}

hardware used:

Arduino UNO board

Servo Motor

LED

jumping wires