(Programming code) Smart study table

// Eip Tech

// Code by Shriyansh namdeo

// www.youtube.com/c/eiptech

#define trigPin 3

#define echoPin 2

#define relay 4

void setup()

{

pinMode(trigPin, OUTPUT);

pinMode(echoPin, INPUT);

pinMode(relay, OUTPUT);

}

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;

delay(2000);

if (distance < 130) // This is where checking the distance you can change the value

{

// When the the distance below 100cm

digitalWrite(relay,HIGH);

} else

{

// when greater than 100cm

digitalWrite(relay,LOW);

} delay(30);

}

Comments

RPM meter || CIRCUIT DIAGRAM

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// Yeh Code Kam Karne Ke Liye Subscribe Kare 👉 //Www.youtube.com/c/eiptech int NUMBER9[]={1,1,1,1,0,0,0,1, 1,0,0,1,0,0,0,1, 1,0,0,1,0,0,0,1, 1,0,0,1,0,0,0,1, 1,1,1,1,1,1,1,1}; int NUMBER8[]={0,1,1,0,1,1,1,0, 1,0,0,1,0,0,0,1, 1,0,0,1,0,0,0,1, 1,0,0,1,0,0,0,1, 0,1,1,0,1,1,1,0}; int NUMBER7[]={1,0,0,0,0,0,0,0, 1,0,0,0,1,0,0,0, 1,0,0,0,1,0,0,0, 1,0,0,1,1,1,1,1, 1,1,1,0,1,0,0,0}; int NUMBER6[]={1,1,1,1,1,1,1,1, 1,0,0,0,1,0,0,1, 1,0,0,0,1,0,0,1, 1,0,0,0,1,0,0,1, 1,0,0,0,1,1,1,1}; int NUMBER5[]={1,1,1,1,1,0,0,1, 1,0,0,0,1,0,0,1, 1,0,0,0,1,0,0,1, 1,0,0,0,1,0,0,1, 1,0,0,0,1,1,1,1}; int NUMBER4[]={1,1,1,1,0,0,0,0, 0,0,0,1,0,0,0,0, 0,0,0,1,0,0,0,0, 0,0,0,1,0,0,0,0, 1,1,1,1,1,1,1,1}; int NUMBER3[]={1,0,0,1,0,0,0,1, 1,0,0,1,0,0,0,1, 1,0,0,1,0,0,0,1, 1,0,0,1,0,0,0,1, 1,1,1,1,1,1,1,1}; int NUMBER2[]={1,0,0,0,0,0,1,1, 1,0,0,0,0,1,0,1, 1,0,0,0,1,0,0,1, 1,0,0,1,0,0,0,1, 0,1,1,0,0,0,0,1}; int NUMBER1[]={0,0,1,0,0,0,0,0, 0,1,0,0,0,0,0,0, 1,1,1,1,1,1,1,1, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0}; int N...

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