Category: embedded

Difference between I2C and SPI 0

Difference between I2C and SPI

What you will learn here about I2C vs SPI: Differnce between I2C and SPI How to choose between SPI and I2C

What is Earthing 0

What is Earthing

Do you ever notice why few devices have earthing and few don’t? Do you have doubt why Iron, geyser, Micro oven, etc have earthing and why Fan, bulb, TV, Tubelight, etc do not have...

How to select a Pull up or Pull down resistor value 0

How to select a Pull up or Pull down resistor value

If you don’t know what is pull up and pull down resistor then please click on the following the link. Pull up and Pull down resistor How to select Pull up and Pull down...

Pull up resistor and pull down resistor 0

Pull up resistor and pull down resistor

Before we start, pull up resistor and pull down resistor, we should know a little bit about what is switch/button. First, we will see what is switch then we will see what is pull...

Why Negative numbers are stored in two’s complement form in computer 0

Why Negative numbers are stored in two’s complement form in computer

We know numbers can be represented in magnitude form (Normal binary representation) , one’s complement form and two’s complement form but why we don’t store number in magnitude form or  one’s complement form  in computer...

Sensing AC voltage using microcontroller 0

Sensing AC voltage using microcontroller

Sensing AC voltage using microcontroller is nothing but checking whether AC supply is present or not using microcontroller. while working with real time situations or Home automation, we come to situation where we want...

Two way switch 0

Two way switch

Normal switch has two positions i.e ON and OFF position which allow user to control electrical loads such as lights, fan, Motor, TV etc  from one place. where Two way switch allows user to...

Bit rate and Baud rate 3

Bit rate and Baud rate

In telecommunication Bit rate and baud rate are two important terms. Bit rate and baud rate play important role when we talk about Serial protocol  UART or modulation schemes like BPSK or QPSK  etc....