Electronics

Electronics, embedded, microcontroller, pic, projects, hobby circuits, circuit, blog, transistor, technology

LCD Display – Fundamentals

LCD Glass Panel - Liquid Crystal Display LCD or Liquid Crystal Display is a flat electronic display which is very commonly used in digital watches, calculators, laptops, televisions etc. It make use of light modulating properties of liquid crystal and polarization of light for its operation. Low power consumption, less thickness and less weight of LCD enables its use in battery powered and portable applications. Prerequisites Light is an electromagnetic radiation which stimulates sight and make things visible. It is produced by vibration of...

May 9, 2016By Ligo GeorgeElectronicsDisplay, LCD, light, Polarization1 CommentRead more...

EasyEDA – A Cloud based PCB Design Software

Cloud computing is an internet based computing which relies on sharing computer resources. It enables us to use computer resources or processing power as a utility similar to using electricity. So we don't need to make big computer infrastructure in our building, just use the cloud resources whenever there is a need. Nowadays everything become cloud computing, like cloud storage, word processing, business analytics etc. What is the role of cloud computing in electronics ? The question ends here, EasyEDA. It...

April 28, 2016By Ligo GeorgeElectronics, PCB Designing, Promotional, TutorialsCloud, Cloud Computing, EDA, pcb, PCB Designing0 CommentsRead more...

Automatic Night Lamp using LDR

Automatic night lamp as the name suggests is for turning ON and OFF the lamp automatically without the need of human interventions. It senses the light intensity from surroundings and find whether its day or night. And it automatically turns ON when the surrounding is dark and it turns OFF when it receives light from surroundings. A sensor called LDR is used to detect the light intensity. This project finds wide outdoor applications in streets, gardens and public places where...

February 12, 2016By Arun BhaskarElectronics, Hobby Circuits, ProjectsLDR20 CommentsRead more...

12V Capacitor Dropper Power Supply Output

Transformerless Capacitor Dropper Power Supply

I already posted about transformerless power supplies in the article, Transformerless DC Power Supply. Here we will see how to design a capacitor dropper power supply. Capacitor power supplies are simple, low cost and light weight solution for providing dc supplies to circuits which require low currents. It is low cost and light weight since there is no bulky transformers. Circuit Diagram Transformerless Capacitor Power Supply 12V 40mA The 200mA fuse will protect the circuit from mains during shot circuit or component failures. The 275V...

February 7, 2016By Ligo GeorgeElectronics, Hobby Circuits, ProjectsCapacitor, Power Supply23 CommentsRead more...

Simple Electronic Piano using 555 Timer

A simple electronic toy piano can be easily constructed using the popular 555 timer IC. 555 Timer can be easily wired as Astable, Monostable or Bistable multivibrator. We all know that Sound is a Mechanical Wave as it is produced by to and fro movement of particles of the medium. Displacement of particles are in the same direction as propagation of sound waves, so sound is a Longitudinal Wave. The to and fro motion of particles in the medium creates compression...

January 30, 2016By Ligo George555 Circuits, Electronics, Hobby Circuits, Projects5554 CommentsRead more...

Bistable Multivibrator using 555 Timer

As the name indicates, a bistable multivibrator has 2 stable states. It can be switched from one state to another by providing an external trigger. It can be used for storing a binary digit (bit) as it has 2 stable states (0 or 1). So it is commonly used in digital circuits, where it is named as Flip Flop or Latches. A bistable multivibrator can be easily constructed using the most popular and low cost 555 Timer IC. Circuit Diagram - 555 Timer...

January 3, 2016By Ligo George555 Circuits, Electronics555, Bistable, Flip Flop, Latch, Multivibrator0 CommentsRead more...

Monostable Multivibrator using Transistors

Multivibrator is a non linear oscillator or function generator which can generate square, rectangular and pulse waves. Monostable Multivibrator or One-Shot Multivibrator has only one stable state. By default monostable multivibrator will be in its stable state, but when triggered it will switch to unstable state (quasi-stable state) for a time period determined by the RC time constant in the circuit. Monostable Multivibrator using Transistors - Circuit Diagram Monostable Multivibrator using Transistors - Circuit Diagram In the above circuit diagram we can find two transistors which are...

August 16, 2015By Ligo GeorgeBasic Electronics, ElectronicsMonostable, Multivibrator, Transistor, transistors2 CommentsRead more...

Using Switch with Raspberry Pi – Python

I hope that you already go through our tutorial, LED Blinking using Raspberry Pi. Detecting switch status is one of the basic step in learning Raspberry Pi GPIO operations. Here we using Python programming language. I hope that you already installed Python GPIO Library in your Raspberry Pi, if not please follow our first tutorial LED Blinking using Raspberry Pi. Raspberry Pi GPIO Pin Out Raspberry Pi GPIO layout Pull Up and Pull Down Raspberry Pi has internal Pull Up and Pull Down resistors which can be...

January 26, 2015By Vivek KarthaElectronics, Python Rpi, Raspberry Pi, TutorialsPython, Raspberry Pi, Switch0 CommentsRead more...