## DC Current Measurement Using Shunt Resistor

DC Current Measurement Using Shunt Resistor The method we are going to discuss in this portion is by using “shunt resistor” but this method has limitations itself. The biggest one is we cannot measure the high currents through this method. In this method we apply a resistor in the series of load so that whole […]

## Measurement of DC Current for different ranges Using Micro-controller

Measurement of DC Current is a little bit tricky than AC current. AC current can be measured through the current transformer without any problem but the use of transformer in DC systems is a sin. Still we have other ways to measure the DC currents of all ranges. I am going to discuss those methods […]

## Appliances Control using GSM through Atmel Microcontrollers

Appliances Control using GSM If you want to make a professional product which is more than a proto-type project then you have to take care of some other things as well. In this article you are going to study that how to make a GSM based professional product which you can implement on your room […]

## Speed Control of Fan using GSM

Speed Control of Fan using GSM Interfaced with Atmel AVR Microcontrollers There are many methods to control the speed of fan. I will use simple method through timer of Atmel AVR Microcontrollers. But keep in mind that this project is little bit advance level project. If you don’t have the idea of GSM then read […]

## Control LEDs using GSM with Microcontrollers

Control LEDs using GSM If you learn how to turn on/off targeted LEDs through your mobile then you can do anything through GSM modules. Therefore at beginner level, I will show you how to control LEDs through GSM module. I used ATmega8 microcontroller in this project which is from the family of Atmel AVR microcontrollers. […]

## Power factor measurement using ATmega8 /16

Power factor measurement using Atmel AVR Micro-Controllers To learn about the power factor measurement, you should have a basic knowledge of power factor. There are three types of loads. Resistive  Inductive Capacitive When we apply AC voltage to resistive loads it will not change the current wave form. But inductive loads will force to lag […]

## AC Current Measurement Using ATmega8

AC Current Measurement Using Atmel AVR Micro-Controllers For AC current measurements we use CT’s. If you never worked with CT you will think like this must be something which will hurt you badly. But if you already used CT’s you can understand that these types of things are only reason that AC systems are still […]