Make with Karkhana

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...

Hey folks In this tutorial, we will learn how to interface LM393 module(Soil Moisture Sensor)with NodeMcu(ESP8266). LM393 is a simple water sensor can be used to detect soil moisture when the soil moisture deficit module plant waterer device, so that the plants in our garden without people to manage; Adjustable sensitivity adjust the digital potentiometer (shown in blue) Operating Voltage 3.3V-5V; Module Dual Output mode, a simple. LM393 Soli Moisture Sensor Module(over view)  Components Required: LM393 Soil Sensor  NodeMcu(ESP8266)  Connecting wires(male to male)  Breadboard  Follow the Image below for circuit connection reference:- (Interfacing all components)  Here Pin A0 of the moisture sensor module connects to pin A0 on the ESP8266 The GND pin on the moisture sensor module connects to a GND pin on the ESP8266 The VCC pin on the moisture sensor module connects to a 3v3 pin on the ESP8266 D0 pin remain disconnected After making th...

Hey folks,  In this tutorial we will learn how to interface Servo motor with NodeMcu(ESP8266)module and operate it with the Blynk app.  Servos  are controlled by sending an electrical pulse of variable width, or pulse width modulation (PWM), through the control wire. There is a minimum pulse, a maximum pulse, and a repetition rate. A  servo motor  can usually only turn 90° in either direction for a total of 180° movement. servo Motor (Back view)  Servo Motor (front view) Blynk  is a Platform with iOS and Android  apps  to control Arduino, Raspberry Pi and the likes over the Internet. It's a digital dashboard where you can build a graphic interface for your project by simply dragging and dropping widgets. (Blynk App) Components Required: Servo motor NodeMcu(ESP8266) Connecting wires(male to male) Breadboard    Follow the image below for circuit connection reference. (Servo Motor connecting wi...

In this tutorial, we will learn how to interface DC Motor with NodeMcu by using Relay Module controlling with Alexa echo. with voice API. A DC motor is any of a class of rotary electrical machines that converts direct current electrical energy into mechanical energy. The most common types rely on the forces produced by magnetic fields. SmallDC motors are used in tools, toys, and appliances. DC Motor (Overview)  There are 4 main types of DC motors: Permanent Magnet DC Motors. The permanent magnet motor uses a permanent magnet to create field flux. Series DC Motors. In a series DC motor, the field is wound with a few turns of a large wire carrying the full armature current. Shunt DC Motors. Compound DC Motors. So now we are familiar with the motor let us interface it. Components Required: DC motor NodeMcu(ESP8266) Alexa echo. Connecting wires(male to male) Breadboard Relay Module Follow the Image below for circuit connection reference:- (Interfacing...

In this tutorial, we will learn how to interface a switch(push button) with ATMEGA16 using AVR studio. In the previous video, we learnt how to interface LEDs with ATMEGA16 using AVR studio. The push-button is a component that connects two points in a circuit when you press it. The example turns on an LED when you press the button. Here we have connected two push button to PORT C in  PC0 & PC1. And for LEDs connection please refer my previous blog. Components Required:- AVR Controller(Atmega16) LEDs Push Button Connecting Wires USBASP Programmer Dump the following code after connection  and select chip ATMEGA 16. #include<avr/io.h> #include<util/delay.h> void main()  {    DDRB=0b11111111;    int S1;    int S2;      while(1)    {     S1=PINC&0b00000001;     S2=PINC&0b00000010;     if(S1==0b00000001)     { ...

In this tutorial, we will learn how to interface LED with Atmega16 using AVR Studio . An embedded system is built around a processor. The design goals of an embedded system are to reduce size, cost and power consumption and to increase performance and reliability. The microprocessor we are using is ATMEGA16 . The processor has limited internal memory, and if this is not sufficient for a given application external memory devices are used. The hardware also includes any components that facilitate the user-application interaction such as display units, keypad. The light-emitting diodes are used for getting status information, such as power on, check output(high/low). You all must have observed led decoration lights, which can glow in different patterns. First, we will learn to interface a single Led and then 8 LEDs to learn a simple toggling technique. Components Required:- AVR controller(Atmega16) LEDs Connecting wires USBASP Programmer For ...

In this tutorial, we will learn how to interface a servo motor using Arduino UNO. The motor inside the setup of a servo is attached by gears to the control wheel. When the motor rotates, the potentiometer’s resistance changes hence the control circuit can precisely regulate how much movement there is and in which direction. The motor’s speed is proportional to the difference between its actual position and desired position. When the shaft is near the desired position it turns slowly else fast. This is called proportional control. They are controlled by sending PWM (pulse width modulated) signals through the control wire. They are available in many sizes and are of three types Positional rotation  Continuous rotation  Linear The most common type is the positional rotational one. So now we are familiar with the motor let us interface it Components Required: Servo motor 1No Arduino UNO 1No Few connecting wires Breadboard Follow the video belo...

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/