Yearly Archives - 2013

Blinking LED using PIC Microcontroller with Hi-Tech C

A lot of you may heard about microcontrollers and its applications. Well it is a bit difficult to start learning microcontrollers. And the guides and tutorials also do not start from zero level which makes learning far more difficult than anticipated. I have tried to start from zero level in here also. All you need is the simplest knowledge of electronics or digital circuits. But you surely should have a decent knowledge of C language. The software for programming Microchip microcontrollers...

June 11, 2013By Hi-Tech C, PIC Microcontroller, Tutorials, , , , , 59 CommentsRead more...
keypad

Interfacing Keypad with 8051 Microcontroller using Keil C

Matrix Keypad Matrix Keypads are commonly used in calculators, telephones etc where a number of input switches are required. We know that matrix keypad is made by arranging push button switches in row and columns. In the straight forward way to connect a 4x4 keypad (16 switches) to a microcontroller we need 16 inputs pins. But by connecting switches in the following way we can read the status of each switch using 8 pins of the microcontroller. 4x4-Matrix-Keypad The status of each...

June 8, 2013By 8051 Microcontroller, Tutorials, , 34 CommentsRead more...

Introduction to Simulink in MATLAB

Simulink (Simulation and link) is developed by MathWorks as an add-on with MATLAB. It is a graphical programming language which offers modelling, simulation and analyzing of multi domain dynamic systems under Graphical User Interface (GUI) environment. The Simulink have tight integration with the MATLAB environment and have a comprehensive block libraries and toolboxes for linear and nonlinear analyses. The system models can be so easily constructed via just click and drag operations. The Simulink comes handy while dealing with control theory...

June 6, 2013By MATLAB, Tutorials2 CommentsRead more...
Remote

IR Remote Control for Home Appliances

IR Remote Control for controlling home appliances can be easily made using Decade Counter CD4017, 555 Timer and TSOP1738 infrared receiver. By using this circuit you can easily control your home appliances using your TV, DVD Player remote control or using a remote control circuit described here. Remote Control Receiver Circuit Diagram IR Remote Control for Home Appliances 2nd and 1st pins of TSOP1738 are used to give power, Vcc and Gnd respectively. 100Ω resistor and 33μF capacitor is to suppress power...

June 4, 2013By 555 Circuits, Electronics, Hobby Circuits, , 97 CommentsRead more...
TSOP17XX Pin Out

IR Transmitter and Receiver using 555 Timer and TSOP1738

IR Transmitter and Receiver pair can be easily made using 555 Timer, IR LED and TSOP1738 IR Receiver. This can be used for remote controls, burglar alarms etc. TSOP1738 is a very commonly used IR receiver for PCM remote control systems. It has only 3 pins, Vcc, GND and Output. It can be powered using a 5V power supply and its active low output can be directly connected to a microcontroller or microprocessor. It has high immunity against ambient light...

June 1, 2013By 555 Circuits, Electronics, , 27 CommentsRead more...
TSOP1738

TSOP1738 – Receiver for IR Remote Control Systems

TSOP1738 TSOP17XX is a commonly used IR receiver for Infrared PCM remote control systems. It is used in TVs, DVD Players, Burglar Alarms etc. This component is built with PIN Diode, Preamplifier and internal filter for PCM (Pulse Code Modulation) frequency and its epoxy package is designed as an IR filter. These are available with different carrier frequencies out of which TSOP1738 is very common whose carrier frequency is 38KHz. The output of TSOP17XX receivers can be directly connected to...

May 31, 2013By Electronics, IC3 CommentsRead more...
MATLAB Logo

Signal Operations in MATLAB

Here I'm going to discuss about basic signal operations that can be done in MATLAB. Visit our tutorial guide on MATLAB to get familar with the basic concepts. This tutorial includes : Addition Subtraction Multiplication Shifting a Signal Reversing a Signal Linear Convolution of 2 signals  Addition Addition can be carried out  using the ' + ' symbol and plotting will give you the result. Eg : x=[1 2 3 4]; subplot(3,1,1); stem(x); title('X'); y=[1 1 1 1]; subplot(3,1,2); stem(y); title('Y'); z=x+y; subplot(3,1,3); stem(z); title('Z=X+Y'); OUTPUT : Plot of Signal Addition With Same time Index NOTE: In the above example index value...

May 31, 2013By MATLAB, Tutorials0 CommentsRead more...
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Raspberry Pi

Raspberry Pi (also known as RPi or RasPi in short) is an ultra low cost single board credit card sized computer developed with an intention of teaching computer programming to school students. It is developed in United Kingdom (UK) by Raspberry Pi foundation which is a registered charity. It follows licensed manufacturing and are sold in partnership with  Premier Farnell/Element 14 and RS Components. We can buy Raspberry Pi online from these companies....

May 30, 2013By Raspberry Pi2 CommentsRead more...
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