Edgefx Kits Official Blog

An IR sensor is an electronic device, that produces in order to detect some parts of the environs. An infrared sensor can measure the heat of an object as well as detects the motion. These sensors are used to measure only IR radiation, rather than producing it that is called as a passive infrared sensor. Generally in the IR spectrum, all the surrounding objects generate different form of thermal radiation.These kinds of radiations are not observable to our eyes, that can be sensed by an IR sensor. The emitter of the sensor is infrared LED and the sensor is an IR photodiode which is sensitive to infrared light of the same wavelength as that produced by the infrared LED. When infrared light drops on the photodiode, the resistances and o/p voltages change in proportion to the received magnitude of the infrared light. [Read more…]

The resonant tunneling transistor concept arises due to the development in the semiconductors. Day by day the size of the semiconductor has reduced and the reduced size of semiconductor has forced for the invention of the resonant tunneling transistor. Currently a lot research is being conducted on the resonant tunneling transistor and here in this article we will have a brief elaboration about the various features of the resonant tunneling transistor. [Read more…]

Comparators are classified into various kinds, such as electronic, electrical, mechanical, optical, sigma, digital and pneumatic comparators, these are used in various applications. Comparators play an essential role in designing electrical and electronic projects. In electronic circuits, an op-amp is used with negative feedback and it can also be used as a comparator. The comparator is mainly designed without feedback for open loop configuration. These are widely used in A/D converters. When the i/p signal is sampled, then this signal is applied to multiple comparators to convert the digital form from analog. [Read more…]

In present days, the audio & video is totally digitized. When the audio signal is out of any audio source or microphone, then the analog will be sampled, coded, modulated, compressed & processed into the digital form like zero’s and one’s, so it is named as DSP (Digital Signal Processing). The remaking of digital signal into audio signal is done by the digital signal processing. The architecture of traditional X86 is called “Von Neumann”, and it is not suitable for handling several algorithms to route this type of digital data. The most popular “Harvard Architecture” is used to handle complex DSP algorithms, and this algorithm is used in most popular and advanced RISC machine processors. Here, in this article we have discussed about Von Nevuman architecture and Harward architecture. [Read more…]

An Amplifier is an electronic instrument which is mainly used to increase the amplitude of a signal waveform in such a way that the other parameters of the waveform like frequency and the parameters like wave shape will not change and it will remain same. To be even simpler an amplifier works as a power modulator and it takes energy from the input and it distributes the energy with higher amplitude to the output. This article discusses about types of amplifiers and its practical examples. [Read more…]

Nowadays, the metal detector is used to identify metallic devices such as bombs, guns for security purpose. To avoid any illegal or unauthorized entry of metallic objects, bombs, knives, guns within the luggage bags of the person carrying them in public places like theatres, shopping malls, parks, airports, hotels, railway stations. A security system is developed by using proximity sensor which is named as a metal detector. So, a metal detector is used in many robotic or electronics projects  to detect any present metals which are nearby or the existence of hidden items within objects. This article gives an overview of metal detector working principle and applications. [Read more…]

Have you ever wondered, how your phones and laptops keep track of your time when the device is turned OFF. Well, there is a true clock which is named as an RTC (Real Time Clock). This clock is powered with unbroken battery even that the device is turned OFF. When the device is turned ON & connects to the web, then the device connects to an NTP server and updates the date and time. This article is meant to give a little insight regarding RTC DS1307 (real time clock) interfacing with 8051 microcontroller. It is attainable to outline a computer code I2C library if your controller doesn’t have an I2C bus. This article can walk you through the steps concerned in interfacing RTC DS1307 with a microcontroller. [Read more…]