Make with Karkhana

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...

This Blog will illustrate to you how to make Color changing Emblen light using the PWM of Arduino. using this you can make your emblems look more attractive. Video Link Components Required 1> Arduino UNO 2> 12V RGB led strip 3> 2N2222 Transistor 4> 10K ohm Resistor 5> Jumper Wires 6> Small Breadboard 7> Acrylic Engraved Emblem 8>IC7805 Power Regulator Circuit Diagram  Arduino Code const int greenPin = 10 ; const int bluePin = 9 ; void setup () { // Start off with the LED off. setColourRgb ( 0 , 0 , 0 ); } void loop () { unsigned int rgbColour[ 3 ]; // Start off with red. rgbColour[ 0 ] = 255 ; rgbColour[ 1 ] = 0 ; rgbColour[ 2 ] = 0 ; ...

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 change  the intensity of light using touch sensor the ARM (FRDM-KL25Z). INTRODUCTION The FRDM-KL25Z is an ultra-low-cost development platform for Kinetis L Series KL1x (KL14/15) and KL2x (KL24/25) MCUs built on ARM® Cortex™-M0+ processor.  The FRDM-KL25Z has been designed by NXP in collaboration with mbed for prototyping all sorts of devices, especially those requiring the size and price point offered by Cortex-M0+ and the power of USB Host and Device. The FRDM-KL25Z is supported by a range of NXP and third-party development software. It is packaged as a development board with connectors to break out to stripboard and breadboard and includes a built-in USB FLASH programmer.               FEATURES NXP KL25Z Kinetis KL2x MCU (MKL25Z128VLK4) High-performance ARM® Cortex™-M0+ Core 48MHz, 16KB RAM, 128KB FLASH USB (Host/Device) SPI (2) I2C (2) UART (3) PWM (TPM) ...

Raspberry Pi, This tutorial is about the Voice Recording and Test to speech Using Raspberry Pi. But First, let's have a small introduction about Raspberry Pi. Introduction Raspberry Pi 3 Model B System on Chip(SoC) What is System on Chip?                 - A complex IC that integrates the major functional elements into a single chip or chipset. Programmable processors On-chip memory Accelerating function hardware (e.g. GPU) Both hardware and Software Analog components Benefits of SoC                   - Reduce overall system cost                   - Increase performance                   - Lower power consumption                   - Reduce size Soc in Raspberry Pi: Broadcom BCCM2835 SoC Multimedia Processor CP...

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 an LCD (liquid crystal display) with ARDUINO.  An LCD screen is an electronic display module having a flat panel display or we can say it’s an electronically modulated optical device that uses the light modulating properties of liquid crystals. We will interface a 16x2(16 columns and 2 rows) LCD. Other variations are also available like 8x1,10x2 etc. It is having a wide range of applications; they are also preferred over the 7-segment display as they are cheap, easily programmable and also have the leverage to display special characters. Now let us interface Components Required 16x2 LCD                   1No. Resistor 560ohms        1No. Potentiometer 10k      1No. Arduino UNO               1No. Few connecting wires Breadboard Follow the image below for circuit connection refe...