Blogging & Tech tipps

I have started a voluntarily blogging on my blog where any one can post useful information about your project and electronics knowledge with the others. As, i have been busy since a long time in my work, i am unable to post useful content for my readers. Hence, i have decided to add few authors on my blog which can contribute honorary to this blog and share your useful stuffs and content with world. Instructions to become author: - If any one is interested in becoming an author of this blog, he/she has to make a blog on Blogger.com and learn to use it. - If, then you have useful information in the field of electronics and embedded which you think can help other people too. You can voluntarily mail me on email ID- examcut2@gmail.com - I will add your profile picture and contribution details on my blog. Terms and Conditions: 1. One has to be adhered to the blog targeted content and what content can be shared. 2. No money or any prize will be granted to any one on posting a...

Mendocino motor is a solar-powered magnetically-levitated electric motor. Watch how light is turned into motion with this magnetically levitating electric motor. About Mendocino Motor: - According to Wikipedia definition, The motor consists of rotor block, which has two sets of windings and a solar cell attached to each side with the shaft placed in the middle. The shaft is positioned horizontally and has a magnet at each end. These magnets provide levitation by repelling magnets in a base under the motor. Working of this project: - First of all build the base that holds magnets and provides a bearing point for the motor. Then, wind the motor coils and solder the solar cells with them. When the light strikes the solar cells, they generate the electric current and thus, energizing the motor windings. This produces magnetic field which interacts with the field of the magnet under the rotor. This interaction causes the rotor to turn. As the rotor rotates, the next solar cell m...

Many kinds of digital cameras are available in the market today. All are equipped with a variety of features, these make it easier even for an amateur to click great quality picture. Given the many options to choose from, findings the right camera within your budget can be daunting. A good way to choose a camera is to go for the features that give you a superb image quality while enhancing your photo imaging experience. Megapixels The resolution in megapixels – MP tells how much you can enlarge your picture quality. The choice of megapixels truly depends on what you would like to do with your photos. The more the pixel count, the sharper the photographs in larger size. A higher megapixel count also gives you the flexibility to crop and print a section of the whole picture. A 5MP resolution is enough to take a sharp 20x25 cm 2 print. Likewise, 8 MP are enough to take a sharp 28x36cm 2 print. Image Sensor The image quality also depends on camera sensors an...

Cellphones are the essential need of our lifestyle. No metropolitan or working man can not think about living life without cellphone. It has now become the requirement our success life and keep connected with our love ones. But, do you know? this useful and very much device causing infections. Yes, it is true that your cellphones are very much high risk factors of causing infections than any other devices your are using or near by you. The latest research study have shown that Cellphones typically carry as many germs as the handle of a bathroom door. It puts you at a greater risk of various diseases as the device acts as dangerous breeding ground for bacteria. A combination of a cellphone's bacteria-loving warmth and close proximity to the ears, nose and mouth means people are exposing themselves to germs that are harmful to their health. Common illness that can be caught include the flu , diarrhea and eye infections . The type of germs found on your cellphone...

Resistor is a component that resists current to flow through the circuit. Resistors are probably the easiest component to test with a multimeter. Through Color band: Before you can test a resistor, you need to know its strength and tolerance. Resistors are color-coded. If you look at a resistor, one end should have a gold , silver , or white band. These 3 color coding gives error value ±10%, ±5%, and ±2% respectively. Turn the resistor so that this band is to your right. That band represents the resistor’s tolerance. Before I discuss tolerances, you need to know how to read a resistor’s values. You begin by translating the colored bands into numbers and recording those numbers. For the first and second colored bands, the values are as follows: Black = 0 Brown = 1 Red = 2 Orange = 3 Yellow = 4 Green = 5 Blue = 6 Violet = 7 Grey = 8 White = 9 There is best and easy way to learn above color bands on fingertips. Learn the color coding in this way - BBROY 'G...

Every student uses Smartphones has a question - How touchscreen works?   It is simple to learn a Smartphone screen works. It is almost similar in all types of touchscreen phones. Let's start with the Introduction: Touchscreen-  It is the 2-dimensional electronic sensing device that detects the presence as well as the location of the object eg. finger or stylus, touched on the display screen area. When we touch eg. our finger on the display of a Smartphone, The uniform electrostatic field lying beneath the touchscreen of the phone, gets disturbed and sends a signal with the coordinates location to the processor. The processor analysis the point of location and presence and perform the function accordingly stored in it. The program of every function is defined in the processor by the developers so that it can perform and analyze accordingly. See the Below picture to understand the better working of a touch screen.. Explained Processes: 1. Signals travel ...

Embedded and Electronics are integral part of each other and engineering students life. Students pursuing Bachelor degree in Engineering, have to make projects in their final year. Some opt for embedded projects based on 8-bit or 16-bit microcontroller. But, don't take embedded projects are easy to make. It requires lot of efforts and deliberate work and proper management of resources. To make complete and working model of embedded project, there are 2 most important tools which run parallely- Software and Hardware. Every embedded project follow a simple aspect of flow chart in which software and hardware part of one's project run and tested parallely to reach the conclusion. The first step of embedded project making is the selection of idea which depends on many factors like your expertise, knowledge about the field, colleagues skills, resources. So, decide the project idea according with your group members. After this, second part is the specification which speci...

The small LED (Light Emitting Diode) bulbs play a vital role in the embedded projects whether in terms of measuring the proper working of the circuit or making 8x8 LED matrix hardware for the project. Usually, students don't consider which LED should be used while making their hardware, if it is based on the collection of different LEDs. They just pick up LEDs which is available to them. But, i would prefer them to use Red LED bulb in their project to make it look better and efficient. Now, it would be better, if you use Red LED? The fact is based on the scattering technique of visible light. The scattering of visible light is inversely proportional to the fourth power of wavelength . So, now you can get why Red LED is preferred. According the scattering of visible light (VIBGYOR), R-RED light has the highest wavelength value and from equation, it scatters less than any light in VIBGYOR. Less scattering means light will come into your eyes without much scattering and thus, ...

It is common for the new beginners to see and use 8 LEDs connected in series with 8 pin port of 8-bit microcontroller. But, technology is changing and the way we live. For embedded lovers, LED Bargraph could be a better alternative in which 10 LEDs are sealed in a package with +ve and -ve terminals. LED Bargraph Mechanism: - LED Bargraph is sealed in a DIP package with 20 pins out of it. The 10 pins (from 1-10) are used as +ve terminal of the LEDs and 11-20 are used as -ve terminal of the LED Bargraph. LED Bargraph saves hardware cost and connection cumbersome with reducing the hardware space. Above figure shows the 10 LEDs connection which can be connected similarly as LED can be connected to microcontroller. It comes with 2-3 years guarantee and costs as much as LED if taken in bulk. Connection with Microcontroller: - LED can be connected in similar as the single LED. It only provides the better visual and make connections less cumbersome. You can use 8 LEDs conne...

You might have already our previous post that Proteus 8 has been launched with new features to make your circuit development more easy. It provides easy tools to place different components from its library. But, i found something irritating which made me to find another of doing that. Placing terminal such as Ground, Output, BIDIR, Power can not be placed when i selected from the left hand side widget. It just showed the label but did not place any terminal on schematic screen of the Proteus window. Follow the steps to place Terminal symbols: 1. Double-click on your Proteus icon and start a "New project". Move the cursor on window and right click to place different components. 2. You will find the "Place" menu on clicking the right option. Then, go to "Terminal" option to select the terminal symbols to place in your circuit diagram. It is same for all Proteus software. I do not know why i was not able to place terminal symbol from the right hand...

May you are fantasied about the beautiful screen of the big range of Smartphones. I also love their eye capturing screen display and touch. Technology in terms of display, is always been on edge and kept on changing to encounter the other cell phones in the market. Today, best technology in display has been considered the Amoled, developed by Samsung and upgraded to Super Amoled . Samsung now using this type of display in most of their smartphones and becoming the leader of the Smartphones. The “ Active matrix ” describes how each OLED is addressed or controlled. Given a m × n matrix, the number of connectors needed to address the display is m + n. Each pixel is attached to a switch-device, which actively maintains the pixel state while other pixels are being addressed, which also prevents cross talk from inadvertently changing the state of an un-addressed pixel. The alternative is a passive matrix  display where rows or columns of OLEDs are addressed rathe...

INTRODUCTION: AMOLED-Active Matrix Organic Light Emitting Diode. It is the display technology, developed by Samsung Electronics having OLED screen with the matrix being in Active state. OLED describes the technology of thin-film type in which organic compound form the electroluminescent material and Active Matrix defines the technology used in addressing of pixels. An active matrix OLED display consists of a matrix of OLED pixels that initiate light upon electrical activation that have been stuck or integrated onto a thin film transistor (TFT) array by using solution-processing techniques and so enables large and clear resolution displays. Thin film transistor (TFT) operates as a series of switches which contains a storage capacitor which maintains the line pixel states, to control the current flowing to each individual pixel. AMOLED pixels turn on and off more than three times faster than the speed of conventional motion picture film – making these displays ide...