Basics of arduino

Arduino is vary famous microcontroller. vary easy to control it

here is codes which i use in videos.


for digital input output....


/*
 * simple digital input output test code
 * 
 * ER BROS  
 * 
 * https://www.youtube.com/channel/UCY6KA8oFk1s36fyPiFEmedQ
 * 
 * http://erbros1.blogspot.com/?m=1
 */

int val; // create a variable
void setup() {
  pinMode(13, OUTPUT); // define 13 number pin as output
  pinMode(8, INPUT); // define 8 number pin as input
  digitalWrite(13, LOW); // make 13 number pin by default low

 }

 void loop() {
  val = digitalRead(8); // this function will chack either HIGH or LOW
  if(val == HIGH) {    // use if esle statment
    digitalWrite(13, HIGH); 
  }
  else {
    digitalWrite(13, LOW);
  }

 }

 for analog inputs

 /*
 * simple digital input output test code
 * 
 * ER BROS  
 * 
 * https://www.youtube.com/channel/UCY6KA8oFk1s36fyPiFEmedQ
 * 
 * http://erbros1.blogspot.com/?m=1
 */
int val; 

 void setup() {
  pinMode(A0, INPUT);
  pinMode(9, OUTPUT); // must use pwm pin
  Serial.begin(9600);
  

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

 }

 void loop() {
  val = analogRead(A0);
  analogWrite(9, val/4);// here 0-1013 convert into 0-255 value
  Serial.println(val);
  
  
  // put your main code here, to run repeatedly:
}






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