Skip to main content

Getting Started with LED's

Now since we know how an Arduino works let us have some fun with the board.

For those of you who are new kindly have a look at the link given below.
http://sudolearn.blogspot.com/2017/05/getting-started-with-arduino.html
Let us first design a smart led blinking system which will blink how we want it to, sounds fun right.



So let’s begin
Components Required

  • Resistor                        1No.  330ohms (Standard Red LED and 5V Input)
  • Led                               1No.
  • Arduino UNO              1No.
  • Few Connecting wires
  • Breadboard
Follow the below video for circuit connection reference:

Now since we have made the circuit let us do the coding part


// declare the pin to which LED is connected:
int led = 5; 
//The below is the setup block the part which we want to run only once we declare them in this block
void setup() // initialize the digital pin as an output.
{
pinMode(led, OUTPUT);
}
void loop() //The code we write inside void loop runs over and over again in loop :
{
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
}

We can introduce delay according to our need Arduino IDE takes values in milliseconds inside the function delay, in the above code 1000 means a delay of 1 sec so if you want to increase or decrease the delay change the values accordingly. You can also use the function delayMicroseconds() if you want to give input in microseconds.
  • Arduino has an inbuilt Led at Pin no.13


The digital pin no. 13 of UNO is actually the 5th pin of port B (Atmega328 IC).

Which we have mapped using the boot-loader firmware.


To know more visit us at karkhana.club

Comments

Popular posts from this blog

Arduino Based Piano Project

This video will illustrate to you how to make a simple piano by using IR Modules. Based on the frequency of sa, re, ga, ma, pa, dha, ni and sa the tone of the buzzer will change. Video Link Components Required: 1> I.R. Modules 2> Arduino Uno 3> Jumper Wires 4>Small Breadboard Circuit Diagram Arduino Code: int button_C = 2; int button_D = 3; int button_E = 4; int button_F = 5; int button_G = 6; int button_A = 7; int button_B = 8; int button_Cup = 9; int speaker = 10; int buttonstate_C = 0; int buttonstate_D = 0; int buttonstate_E = 0; int buttonstate_F = 0; int buttonstate_G = 0; int buttonstate_A = 0; int buttonstate_B = 0; int buttonstate_Cup = 0; //NOTES         'c'  , 'd',  'e',  'f',  'g', 'a',  'b',  'C' int tones[] = { 240, 254, 285, 320, 359, 280, 427, 956 }; //freq int Cur_tone = 0; void setup() {   pinMode(button_C, OUTPUT);   pinMode(button_D, INPUT);   p...

Getting Started with Arduino

What is Arduino? Arduino is basically an open source electronics platform which is having easy to use hardware and software implementation. It’s a micro-controller interfaced with other vital components like programmer ICs, voltage regulator etc. With the help of this, we can interface various input (sensors) and output (LED's) components. Why Arduino? Arduino is not just a micro-controller it is also interfaced with several other components which make the job of the user very simple. Arduino Uno Pin-Out How Arduino works? An input of 5v is given to the board using a USB cable (not necessary) through a laptop or any other convenient power source. Microcontrollers are usually programmed through a programmer unless we have a firmware in our microcontroller that allows installing new firmware without any external programmer. This is bootloader. All the controllers present in UNO are from ATMEL Semiconductor (Now acquired by Microchip). We hav...

Arduino Based Audio Spectrum Analyzer Project

This Video will illustrate you how to visualize audio left and right signals in bar-graph in 16X2 LCD Display using Arduino. Components Required: 1. Arduino UNO 2. 16X2 LCD Display 3. 3.5mm Audio Jack 4. Jumper Wires   Connection Diagram: Video Link Arduino Code #include <LiquidCrystal.h> #include <fix_fft.h> #define DEBUG 0 #define L_IN 1 // Audio input A0 Arduino #define R_IN 0 // Audio input A1 Arduino const int Yres = 8; const int gain = 3; float peaks[64]; char im[64], data[64]; char Rim[64], Rdata[64]; char data_avgs[64]; int debugLoop; int i; int load; LiquidCrystal lcd(11, 10, 7, 6, 5, 4); // pins to LCD // Custom CHARACTERS byte v1[8] = {   B00000, B00000, B00000, B00000, B00000, B00000, B00000, B11111 }; byte v2[8] = {   B00000, B00000, B00000, B00000, B00000, B00000, B00000, B11111 }; byte v3[8] = {   B00000, B00000, B00000, B00000, B00000, B11111, B11111, B11111 }; byte v4[8] = {   B0...