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

5V Power Supply using 7805 Voltage Regulator with Design

In most of our electronic products or projects we need a power supply for converting mains AC voltage to a regulated DC voltage. For making a power supply designing of each and every component is essential. Here I'm going to discuss the designing of  regulated 5V Power Supply. Let's start with very basic things the choosing of components Component List : Step down transformer Voltage regulator Capacitors Diodes Let's get into detail of rating of the devices : Voltage regulator : As we require a 5V we need LM7805 Voltage Regulator...

Getting Started with Proteus – Beginners Tutorial

Proteus is a design software developed by Labcenter Electronics for electronic circuit simulation, schematic capture and PCB design. Its simplicity and user friendly design made it popular among electronics hobbyists. Proteus is commonly used for digital simulations such as microcontrollers and microprocessors. It can simulate LED, LDR, USB Communication ... You can buy Proteus from Labcenter Electronics.

Switching LED using Push Button Switch

First we can start with very primitive circuit for switching an LED using a Push Button...

LED Blinking using 8051 Microcontroller and Keil C – AT89C51

8051 Microcontroller is a programmable device which is used for controlling purpose. Basically 8051 controller is Mask programmable means it will programmed at the time of manufacturing and will not programmed again, there is a derivative of 8051 microcontroller, 89c51 micro controller which is re-programmable. AT89C51 89c51 is 8-bit device means it is capable of doing 8-bit operations.  It have 4 ports which are used as input or output according to your need. This device also have Timer, Serial Port interface and Interrupt controlling you can use these according to your need. The datasheet may be downloaded...

PCB Designing using OrCad Layout 10.5

OrCad is a highly developed and complex software that provides affordable and high performance PCB designing tools for small and industrial PCB designers. But for an electronic hobbyist, OrCad may seems to be highly complicated and time consuming when compared to other PCB designing tools. OrCad 9.2 is the commonly used version but it is not compatible with 64 bit and the next best choice is OrCad 10.5 as higher versions of OrCad are highly complicated. Thus in this tutorial, we will show...

Low Power Square Wave Inverter using CD4047

Inverter is a electrical device that converts DC Power to AC. We usually use the word Inverter for the device used in our households for mains power back up. It stores electrical energy in a battery and discharges it when need. Our household inverters mainly have two parts, Battery Charging Circuit and Inverter Circuit. Battery charging circuit charges the battery when power is available, which may be mains power, solar power or any other sources and the Inverter Circuit convert...

Solar Tracker system Using LM358

We all know that a Solar Panel can be used to convert light energy to electrical energy. The amount of converted energy depends on the amount of light falling on the Panel. Generally Solar Panels are stationary devices which is fixed at a position. The produced electrical energy can be increased if we move the solar panel as the movement of the Sun. Here is a simple low cost Solar Tracker circuit which automatically moves the solar panel in the...

Wireless Sensor Networks

There is no iota of doubt that modern world is heading towards smart and bright future which very strongly presents the need of smart environment. The concept of smart environments highlights the requirement of gathering the data from the real world with the help of sensors just like human beings receive the sensory data from the surroundings using sense organs and using that collected data for diverse application areas including environmental, medical, military, transportation, entertainment, crisis management, homeland defence, and...

ULN2003 High Voltage and High Current Darlington Transistor Array

ULN2003 The ULN2003 is a monolithic IC consists of seven NPN darlington transistor pairs with high voltage and current capability. It is commonly used for applications such as relay drivers, motor, display drivers, led lamp drivers, logic buffers, line drivers, hammer drivers and other high voltage current applications. It consists of common cathode clamp diodes for each NPN darlington pair which makes this driver IC useful for switching inductive loads. Schematic Diagram of each Darlington Pair - ULN2003 The output of...

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