Week 9 : Embeded Programming

Write Code.

Upload program to the board.

Codes

First programmed my board to blink conntinuously at specific interval it stops when pressed button.

	

		// constants won't change. Used here to set a pin number:
		const int ledPin =  LED_BUILTIN;
		// the number of the LED pin
	   
		// Variables will change:
		int ledState = LOW;             
		// ledState used to set the LED
	   
		// Generally, you should use "unsigned long" for variables that hold time
		// The value will quickly become too large for an int to store
		unsigned long previousMillis = 0;       
		 // will store last time LED was updated
	   
		// constants won't change:
		const long interval = 1500;          
		 // interval at which to blink (milliseconds)
	   
		void setup() {
		 // set the digital pin as output:
		 pinMode(ledPin, OUTPUT);
	   }
	   
		void loop() {
		 // here is where you'd put code that needs to be running all the time.
	   
		 // check to see if it's time to blink the LED; that is, if the difference
		 // between the current time and last time you blinked the LED is bigger than
		 // the interval at which you want to blink the LED.
		 unsigned long currentMillis = millis();
	   
		 if (currentMillis - previousMillis >= interval) {
		   // save the last time you blinked the LED
		   previousMillis = currentMillis;
	   
		   // if the LED is off turn it on and vice-versa:
		   if (ledState == HIGH) {
			 ledState = LOW;
		   } else {
			 ledState = HIGH;
		   }
	   
		   // set the LED with the ledState of the variable:
		   digitalWrite(ledPin, ledState);
		 }
	   }

Second I programmed to blink board with delay.

		int led = 4;
		int button =2;
		int state=0;
		
		void setup() {
		  // put your setup code here, to run once:
		 
		
		  pinMode(led, OUTPUT);
		  pinMode(button, INPUT);
		  digitalWrite(led, LOW);
		}
		
		void loop() {
		  // put your main code here, to run repeatedly:
		  
		  state= digitalRead(button);
		  if(state==1){
			digitalWrite(led, HIGH);
			delay(1000);
		  }
		  else{
			digitalWrite(led, LOW);
			delay(1000);
		  }
		
		}

Video

What Did I learn ?

This week I read data sheet and learned various things about microcontroller.

I learned about various syntax and tags of Arduino C.

I learned how to programme the board using ISPs.