Do More

      The P-N junction diode is appeared in the year 1950. It is the most essential and the basic building block of the electronic device. The PN junction diode is a two terminal device, which is formed when one side of the PN junction diode is made with p-type and doped with the N-type material. The PN-junction is the root for semiconductor diodes. The various electronic components like BJTs, JFETs, MOSFETs ( metal–oxide–semiconductor FET ), LEDs and analog or digital ICs all supports semiconductor technology. The main function of the semiconductor diode is, it facilitates the electrons to flow totally in one direction across it. Finally, it acts as a rectifier. This article gives a brief information about the PN junction diode, PN junction diode in forward bias and reverse bias and the VI characteristics of PN junction diode What is a PN Junction Diode? There are three possible  biasing  conditions and two operating regions for the typical PN-Junctio...

Bluetooth profile is a wireless communication interface that connects Bluetooth devices. The profiles define requirements for implementing of Bluetooth for various applications, such as, file transfer, wireless headset usage, etc.  The following figure depicts different Bluetooth profiles and their usage.   Serial Port Profile (SPP) is probably the most popular profile used in smart phone based ubiquitous and home automation systems. SPP emulates RS-232 based communication protocols including all the control signals. It is based on ETSI 07, 10 and the RFCOMM protocol (Read more).  RFCOMM is a simple set of transport protocol used for serial port emulation. It supports up to sixty emulated serial links on a single Bluetooth enable device. The emulated serial ports can again multiplexed through single point-to-point connection or point-to-multipoint connection piconet through several Asynchronous Connection-Oriented Logical transport (ACL) links. The flow control mechanis...

Theory of Capacitive Proximity Sensors | How Capacitive Proximity Sensors Works? This knowledge of Sensors will help you better understand customer applications. In addition, you will be better able to describe products to customers and determine important differences between products. You should know Basics of Electricity and Basics of Control Components before attempting Sensors.  Today we learn the Theory of Capacitive Proximity Sensors and how they work? Let’s Start. Capacitive proximity sensors are similar to inductive proximity sensors. The main difference between the two types is that capacitive proximity sensors produce an electrostatic field instead of an electromagnetic field . Capacitive proximity switches will sense metal as well as nonmetallic materials such as paper, glass, liquids, and cloth. The sensing surface of a capacitive sensor is formed by two concentrically shaped metal electrodes of an unwound capacitor. When an object nears the sensing surface it ente...