Make with Karkhana

Since now we all have worked a lot with led,s let us show you one of the projects made by us with the help of bulk of led,s. A led matrix cube Below is the video of our project. Working description: The above is made by combining led,s in a regular fashion in cubical shape. All types of patterns can be generated in the cube and also various shapes like square, triangle etc. Whatever pattern comes to your mind you can generate that by altering the code. Curious to learn what you saw. Thinking? Join our hands-on training courses. To know more visit us at  https://karkhana.club/

Since now we are all familiar with RGB LED’s let us show you one of the products made by us (  Karkhana Makerspace ). The below is the video of our product (Mobile Control RGB Bulb) Working description: It is a decoration lamp which can be used to lighten your home according to your mood or occasion. The color selection of the lamp is simply controlled with the help of our app. The concept is the same as I have mentioned in my previous blogs here we are giving instructions wireless via Bluetooth to the controller which drives the lamp. For any detail or query regarding the above project, Contact us at hello@karkhana.club Thinking? Join our hands-on training courses. To know more visit us at  https://karkhana.club/

In this tutorial, we will learn how to interface an RGB led with Arduino. An RGB led consist of three Led’s namely red, green and blue inside a single package. It is having three pins the longer one(2) is the GND(in the case of the common cathode) and the other three pins represent the three colours. You all must have heard about the RGB colour model, it is a model representing the colours that can be generated with the combination of three basic colours. Now let’s interface the led and have some fun with it. Components required Resistor                         1No.              200 ohms RGB led                         1No.  Arduino UNO                 1No. Few connecting wires Follow the video below for circuit connection reference. After making the circuit connections dump the code given below.   int led1 = 3; int led2 =5; int led3 =6; void setup()  { pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); pinMode(led3, OUTPUT); } void loop()  { digitalWrite

In this tutorial, we will learn how to control the brightness of a LED using potentiometers(Variable Resistor). A potentiometer also known as the pot is a three-terminal resistor with sliding or rotating contact that forms an adjustable voltage divider, they can be also used as a rheostat or variable resistors. Broadly there are two types of potentiometers available.          The Rotary Pot - they use a rotary motion to move the slider around a track that compromises most of a circle, with contacts at either end of the track in the area where part of the circle is missing. They are widely used in appliances with knob control.        The Sliding Pot - - they are those variable resistors that slide in a linear fashion,i.e in a straight line. These controls take up more front panel space but are much easier to use under some circumstances. for example, they are widely used for audio mixers and lighting desks.          Now we know how a pot works let us have som

In this tutorial, we will learn how to control the brightness of a LED without using any sensors. Since we all know how a LED works and what all can be done with it let us start the tutorial. For those of you who are new kindly refer our previous blogs to explore LEDs.  Components required Led                                        1No. Arduino UNO                         1No. Few connecting wires. The circuit connection is very simple just connect the anode of the Led with the 11 th pin of Arduino and connect the cathode with the ground. After making the connections dump the code given below. int  i; void setup() { } void loop() { for (i = 0; i < 256; i++) { analogWrite(11, i); delay(10); } for (i = 256; i >0 ; i--) { analogWrite(11, i); delay(10); } } You will observe the output as: Thinking? Join our hands-on training courses. To know more visit us at  https://karkhana.club/

In this tutorial, we will learn how to interface digital sensors with Arduino . A sensor is a device which detects or measures a physical property and records, indicates or otherwise responds to it. Digital sensors give us output in the form of HIGH or LOW signal. When it detects a phenomenon it gives a HIGH output else a LOW output signal. Few examples of digital sensors are- IR Sensors, Digital Sound Sensors, Digital Temperature Sensors etc. We will interface an Infrared Sensor module.                                                  Working on an IR sensor. It basically works as an obstacle detector. Let us learn how to interface an IR (infrared) sensor. Components required: IR sensor module          1No. Arduino UNO               1No Connecting wires. Breadboard. Follow the below video for circuit connection reference. After making the circuit connections dump the code given below. int irpin = 2; int ledPin = 13; in

Since now we are well acquainted with LED’s let us learn how to control the switching using a push button. In this tutorial, we will learn how to use a push button. A push button is used to get control of the circuit. Components Required Resistors                           2Nos. 330ohms,10k(recommended) Pushbutton                        1No. LED                                  1No. Standard red LED Arduino UNO Breadboard Follow the video to make the circuit. After making the circuit it will look like Now dump the code given below int d=2; // chose the pin which you have connected to the output of push button void setup() { pinMode(2,INPUT); pinMode(13,OUTPUT); } void loop() { d=digitalRead(2); if(d==0) { digitalWrite(13,HIGH); } else { digitalWrite(13,LOW); } } Now the control is in your hands whenever you will press the button the led will be ON and when you release it, LED will go OFF. You can alter the control like                                  

Alright since now we know how to interface a LED let’s have some fun generating patterns with multiple LED. Components Required Resistor                    4 No. 330Ohms(Standard Red LED and 5V input supply) LEDs                        4 No. Arduino UNO          1No. Connecting wires Breadboard In this blog, we have generated a shifting glowing pattern of LEDs. For circuit, connections see below After building the circuit dump the code given below. int led1 = 1; int led2 = 2; int led3 = 3; int led4 = 4; void setup()  { pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); pinMode(led3, OUTPUT); pinMode(led4, OUTPUT); } void loop() { digitalWrite(led1, HIGH); // turn the LED on (HIGH is the voltage level) delay(500); digitalWrite(led1, LOW); // turn the LED off by making the voltage LOW delay(500); digitalWrite(led2, HIGH); // turn the LED on (HIGH is the voltage level) delay(500); digitalWrite(led2, LOW); // turn the LED off by making the voltage LOW delay(500); d

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