A 600-W TV Receiver Is Turned On For 4 h With Nobody Watching It

A 600-W TV receiver is turned on for 4 h with
nobody watching it. If electricity costs 10 cents/kWh,
how much money is wasted?

So this is a problem that we have taken from the book Fundamentals Of Electrical Circuits By Alexander. But if you want to take a look at the problem yourself, then go to Chapter 1 question 1.39 of the book.

Solve Fundamentals Of Electrical Circuits Problem 1.39 - A 600-W TV receiver
Solve Fundamentals Of Electrical Circuits Problem 1.39 – “A 600-W TV receiver”

Since this is a problem we have taken from the Chapter 1 – Basic Concepts, it should be easy. But is that right? Well, let us see as we try to solve it, shall we?

So how do we go about solving this problem?

Well as we always do, we will first break the problem into small parts. By doing that, we will be in a better position to understand the problem in the first place. Right?

So, here is our breakdown of the problem.

The Problem Breakdown

So let us read out the problem once again, line by line. Alright?

Now the first line of the question reads – “A 600-W TV receiver is turned on for 4 h with nobody watching it.

So what do we learn from that? It means that we have a TV which consumes electricity at 600 Watts Per Hour or 600 Watt/Hr. But we can also write this as 0.6 Kilo Watts Per Hour or 0.6KW/Hr, right? So that means:

P = 0.6 KW/Hour

Ok! So with that being clear, we will move on to our next part of the question which reads – “If electricity costs 10 cents/kWh, how much money is wasted?”

From this sentence, we now know that the cost of 1 KW of Power consumption for every hour is 10 cents.

Electricity Price = 10c/KW

So the question after that then becomes quite simple, isn’t it? It is just asking us to find out what will be the electricity bill for running that A 600-W TV receiver for 4 hours.

A 600-W TV receiver Electricity Cost In 4 Hours?

So solving this now becomes a simple equation:

Total Bill = Power Consumed By TV in 4 hours * Elec. Price

So then what is the total Power consumed by the TV in 4 hours? It is simple right? If the TV consumes 0.6KW in 1 hour, then the amount of Power it consumes in 4 hours is:

Power consumed in 4 hours = 0.6KW * 4 = 2.4KW

So it is now clear right? The TV has consumed 2.4KW in 4 hours. So then what will be the electricity price for this much of power?

Total Bill = 2.4KW * 10 cents => $0.24


What Is An Electrical Circuit – Explained For Dummies

Have you ever tried to look inside an electronic device? If you have, then we are sure that you have come across an electrical circuit. Right? But ever wonder what an electrical circuit is? What it does and why we use them?

No? Then this is an article you should read to get a some idea about it. Since you are new to an electrical circuit, we will try to keep it simple so that it is easy for you to understand. Sounds good? Great! Then let us get started, shall we?

Introduction To An Electrical Circuit

Definition Of An Electrical Circuit

The text book definition of an electrical circuit goes something like this:

It is an interconnection of electrical elements used to transmit power.

But I know that this will not help you understand much as it is quite vague. Right? So let me explain to you about it in simple words.

Electric Circuit Explained In Simple Terms

We know what an electricity is, right? It is the energy source to run many of our every day equipment like TV, Radio, Laptops, Fans, AC etc.

But here is the problem. We don’t normally generate electricity in our houses (Unless your house is solar powered). So where is it generated then? Usually in the Power generation units located in a far off place like water falls, Nuclear plants etc.

So then how do we get this electricity delivered to our houses? Well that is when we use the power lines, right?

But even after you get your electricity to your homes through power lines, it is still not good to run your electrical devices. Why, you ask?

Well that is because the power supplied to our homes are quite high – usually between 100V to 240V. But our electrical devices like laptops or fans dont really need that much of power. Then what do we do?

That is when we make use of an electrical circuit!

Using electrical circuits, we will transfer power to our devices at the right amount that it requires. So in other words, we make use of electrical circuits to transfer the electrical power to a device at the right level.

So what is an electrical circuit made of? Want to take a guess? I did tell you about it already once. Not sure?

Well look at the definition above and tell me. What do you see?

If you said “Electrical elements” then you go it right!

What Are Electrical Elements?

So an electrical circuit contains electrical elements in it. You are clear about that, right? But what are these elements? I never told you about it, isn’t it?

Well, we have many type of electrical in use. And each one of these elements have their own purpose in a circuit. But to give you an idea, here are some examples of electrical elements in use:

  • Resistors
  • Capacitors
  • Inductors
  • Diodes
  • Transistors
  • Transformers etc

So as you can see, we have a lot of elements to use in an electrical circuit. But why do we have so many of them? Well, it is because each of the element have their own set of functionalities. So depending on what we need, we will pick up the right element in our circuit.

Sounds good so far? Great. That is all there is to it. But, before I end this article, let me show you a simple electrical circuit as an example. By looking into it, you will get a good idea about what we are dealing with. Right?

So take a look at this simple circuit where we have an LED light connected through a resistor, capacitor and few other elements. Now I will not go in detail about how it works and all. That should be a separate article by itself in the future.

But this should give you a good mental picture of how an electrical circuit looks like. Take a look at it!

A Simple Electrical Circuit Example
A Simple Electrical Circuit Example


So that is how an electrical circuit looks like. By now, I hope you have got a good idea about what an electrical circuit is and why we need to use it.

If you still have any doubts about it, do let me know in the comments below. I will be more than happy to help you guys out!

So until next time, happy learning! 🙂

Learn the difference between a serial and parallel electrical circuit.


Use Android Phone As A Camera For OBS – How To Guide

So you installed OBS to stream your activity, but then realized that do not have a webcam? Well do not worry. Because in this article, we will teach you how to use your Android phone as a camera for OBS.

So you have an Android smartphone with you and you want to use it as a camera for OBS. Is that right? Well then, we are happy to tell you that you can do so without any problem.

But how? Well, all you have to do is to follow along this article. It will give you step by step instruction to turn your Android phone as a camera for OBS.

So are you ready for that? Great! Then here we go!

What You Need To Use Your Android Phone As A Camera For OBS?

Lucky for you! Because you do not need many items to turn your Android smartphone into an OBS webcam. All you need is:

  • Android Phone
  • Internet Connection To Download An Android App
  • Space In Your Smartphone To Install The App
  • Computer where the OBS software is installed

How To Use Android Phone As A Camera For OBS

So the first step involved in turning your Android Phone into an OBS webcam is to install an app from the playstore.

Install the Android app IP Webcam from the playstore.

Once the IP Webcam Android app is installed on your Android smartphone, click on it to open the app.

So are you wondering what this IP Webcam app do? Well, it just turns your Android phone’s camera into an IP camera.

What Is An IP Camera?

An IP camera is a camera that is connected to a computer network. So what does that mean? It means that you can connect to this camera through your network and start accessing it. So it also means that you can connect to the camera from the internet and view live video feed or take pictures out of it.

Configure IP Webcam Android App

So when you run the IP Webcam app, you will be turning your phone into an IP camera. Now once your Android phone’s camera appears as a IP network camera, you can connect to it from your computer running OBS software.

So this is exactly what we are trying to achieve here. Got it?

So now let us get back to the IP Webcam app on your Android phone.

If you just opened the app, you should see a screen where you can set up the camera. For now, we will leave all the default settings on this page of the app as it is. Alright?

IP Webcam Settings Page To Use Android Phone As A Camera For OBS
IP Webcam Settings Page To Use Android Phone As A Camera For OBS

Next, we scroll down the app to reach the end of the page. Now when you do so, you will see at the end of the page an option to “Start Server”.

GO ahead and click on this button. That should start your Android camera as an IP webcam. If you scroll the page now, you should be seeing an IP address of your Android phone.

It should look something like this:

So fif you are seeing this address, then your smartphone camera is working as an IP camera. This is the IP address of that webcam. Alright?

So what do we do next?

Well, it’s simple, go ahead and run your OBS software on your computer. Once it has started, you can connect to the IP camera using the above IP address.

Configuring OBS to connect to the Android Phone IP Camera

Insert the IP address along with a video source set to VLC Source.

So here is how it should finally look on your OBS software:

Once this is done, you should be able to see the live feed of your Android Phone camera in your OBS.


So that is it. That is how you get your Android Phone camera to work as an OBS camera. If you have any questions about it, do let me know in the comments below. So until next time, cheers! 🙂


WS2811 Vs WS2812 Difference In LED Strip

Are you planning to connect LED strips to your board? Then you would want to know the difference between WS2811 Vs WS2812. So read below to know more!

Most of the articles on Arduino or Raspberry Pi asks you to hook up an WS2811 or WS2812 LED strip to your board. But have you ever tried to know why these LED strips? Why not any other LED strips? What makes them so special? And what about the WS2811 Vs WS2812 Difference?

WS2811 Vs WS2812 Difference In LED
WS2811 Vs WS2812 Difference In LED

Not many tutorials out there have tried to answer these questions. So in this article, we will do just that! So brace yourself. Sit tight and join the ride to learn all about these LED strips. Alright? Cool! Here we go!

What Is An LED Strip?

So before we dwell into learning the WS2811 Vs WS2812 Difference, let us try to answer this question first.

What is an LED?

An LED is a simple semiconductor device that will emit light when electric current flows through it. Now notice how I used the term “semiconductor device“. But what type of device is it? Well to be precise, it is a semiconductor diode.

So in short, LED stands for Light Emitting Diode. So what do we mean by that? It means that when electricity passes through this diode, it emits light!

So now that we know what an LED is, it is time to answer our next question.

What Is WS2811 LED Strip?

A WS2811 LED strip uses WS2811 LED driver chip to control the LED strip. Uhh… Got confused by what I just said?

Well, let me clear that for you by answering this question.

What is an LED strip?

You see, an LED strip is just a fancy way of connecting a bunch of LED lights together along a strip of wire. So an LED strip will have more than one LED lights in them.

But what makes them great is that you can address each of these LED lights separately.

Wait what? How can we do that, you ask?

Well that is where LED driver IC like WS8211 comes into picture. It is these chips that will help us connecting to each of the LED and controlling them to turn then ON or OFF.

Are you with me until here? Great! Then let us find answer to the next question

How Does WS8211 Chip Control LED?

So here is the thing. To control individual LEDs in a strip, LED driver chips like WS8211 is used. These chips sit alongside the LED and control their light intensity.

So by makes use of serial protocol in your microcontroller and assigning unique addresses to each of the LED driver chip you can control each of the LEDs.

So this way, when you want to control an LED, your board’s microcontroller will send out the address of the LED driver chip to be controlled. This will make the respective LED chip accept the next set of commands to be sent for itself.

And this way, your board will be able to control every LED to be turned ON or OFF!

Pretty neat, isn’t it? 😉

So now that we know what an LED driver chip like WS8211 does, it is finally time to ask the important question of this article.

WS2811 Vs WS2812 Difference

While both WS2811 & WS2812 are LED controller ICs, there are a few notable differences between them. Here are few of them that we listed out for you:

WS2811 Vs WS2812 Difference In Power

WS2811 LED chip uses 12V to work. Where as a WS2812 chip which uses only 5V. But then how will this impact you?

Well you see, if you are going to use along LED strip with many LEDs in them, you are going to see quite a bit of voltage drop along the strip.

Which means that the last few LEDs that is present at the far end of the strip from the board will get lower voltage. Now, if this drop is significant, your last few LEDs might not be glowing as well as its should be.

You do not want that. Right?

So for example you have 30 LEDs in your strip and the voltage drop is 2V towards the end of the strip. Well in that case, if you are using a WS2811 chip, the last few LEDs will get around 10V. This is still reasonably OK for an LED supposed to operate at 12V.

But on the other hand, if you are using WS2812 that works at 5V. the same voltage drop will be down to 3V from the supposed 5V. Now that is quite a significant voltage drop there. Right?

So you need to keep this in mind while choosing between WS2811 Vs WS2812.

WS2811 Vs WS2812 Difference In LEDs Controlled

WS2811 actually do not control one LED. But instead it controls a cluster of 3 LEDs together. So that means that you cannot go below a granularity level of 3 LEDs to control them.

But on the other hand, WS2812 can control 1 LED each. So, if you need a control granularity of 1 LED, you should be going for WS2812 instead of WS2811.

WS2811 Vs WS2812 Difference In Power Consumption

As WS8211 operates at 12V, the amount of power consumed by it is significantly more. On the other hand, as WS8212 uses 5V, it can operate at a much lower power consumption.

WS2811 Vs WS2812 – Pros & Cons Of Each

WS8211 Pros

  • Operates at 12V. So it can control more number of LEDs in a strip.
  • Ease of use when dealing with mass LED controls.

WS8211 Cons

  • It cannot control lower than 3 LEDs at a time. So its lower granularity level of control lies at 3 LEDs.
  • Consumes significantly higher power because of 12V of operation.

WS8212 Pros

  • Can control single indiviudal LEDs.
  • LED control graularity lies at 1 LED.
  • Lower power consumption.

WS8212 Cons

  • As it operates at 5V, its voltage drop becomes significant as the number of LEDs in the strip increases.


So in conclusion, whether to choose WS2811 or WS2812 entirely depends upon the type of use cases you are dealing with. If you want to control a long LED strip then WS2811 is the obvious choice for you.

But on the other hand, if you want to control LEDs at the granular level of a single LED, then WS2812 is the option for you to go for.

So hope this article was helpful for you in understanding the WS2811 Vs WS2812 difference. If you still have any more questions in your mind, do let me know in the comments below and I will try to give you my best help.

So with that, I will end this article here. Until next time, take care and happy learning! 🙂


Series Vs Parallel Batteries – What Is The Difference?

If I give you two batteries and ask you to connect them together you have a decision to make. So what would that be? You need to decide on connecting them in Series Vs Parallel Batteries set up.

But what is the big deal in that, you ask? Well actually, it is a big decision to make! Why so?

Because, based on how you decide to connect the two batteries, I will get different amount of voltage and current.

Wait, what? Why is that the case?

To help you understand the reason behind it, I will first have to explain how a series vs parallel batteries connection is made. Alright? So let me start with that first!

Series Vs Parallel Batteries Connection

So let me first start by explaining how to connect the two batteries in series. Now, what I explain to you for the two batteries can be extended to more than that as well.

Does that make sense? Great!

So let us take a look at how two batteries connected in series.

How to connect batteries in series?

So in case of a series connection, we are going to connect the positive terminal of the first battery to the negative terminal of the second one.

Wait! What does that mean?

I know! It can get a little confusing when I say like that. So instead of me trying to explain it using more words, you better take a look at the pic below:

Series Vs Parallel Batteries - Series connection
Batteries in series connection

So when you look at the pic above, I guess it becomes clear. As you can see, we have connected the positive terminal of first battery to the negative terminal of the second one.

But this begs us the next question. What happens when we connect the batteries in this way i.e. in series?

So the answer to that question is as follows:

When we connect our batteries in a series connection, the voltage in the two batteries gets added together.

So now you know it!

But did you notice something here? This is the kind of connection we do in many of our every day electrical appliances. Guess where all you have seen this type of connection?

Here is where you would have seen batteries connected in series – Your TV remote, your torch, your alarm clock etc.

In each of these devices, we connect the positive terminal of a battery to the negative terminal another one. Do you agree with me here? It is true, right? 😉

So in each of these devices, you are increasing the voltage supply for your device. Right?

So that is how a series connection of batteries are made.

Now if this is clear, let us move on to our next type of connection. Are you ready? Great! Let us go then!

How to connect batteries in parallel?

In case of a parallel connection, we have similar type of terminals of each battery connected together. So what does that mean? It means that we connect every positive terminals of each of the battery together. In a similar way, we connect every negative terminals of the batteries together as well.

Still not clear on what I mean by that? Then take a look at this picture below:

Series Vs Parallel Batteries - Parallel connection
Batteries in Parallel connection

So as you can see above, we have connected the two positive terminals of the batteries together and two negative terminals together as well.

And that is how a parallel connection of batteries are made.

But how will connecting batteries in parallel benefits us?

So here is the thing. When you connect two batteries in parallel, the total amount of current we get out this rig up will be the sum of current from each batteries.

Wait what?

Well, what I meant is that by connecting the two batteries in parallel, the total current we get will be the sum of current from each of the batteries.

Alright! So then what about the voltage? Well, when batteries are connected in this parallel pattern, the voltage across the rig up remains the same.


Summary of Series Vs Parallel Batteries

Batteries Connected In SeriesBatteries Connected In Parallel
Positive end of one battery will connect to negative end of the other.Positive end of one battery will connect to positive end of the other.
Final Voltage will be the sum of voltages of each individual batteries.Final Current will be the sum of voltages of each individual batteries.
Example Use – TV Remote, Alarm Clocks etc.Example Use – Power Banks (To increase the output capacity).


So those were the differences between connecting batteries in series or parallel. As you can see, each one of these connection types have their own advantages & disadvantages. So how you want to use it entirely depends on what is the purpose of usage.

So with that, I will end this article over here. If you have any more questions on this, do let me know in the comments below.

So until next time, take care! 🙂

If you are interested in Electronics, checkout this new Arduino hardware – Arduino Portenta


What Is An Atom? How Small Is It & What Is It Made Of?

So if you have studied science in your school, then the question What is an atom will be a basic one to ask, right? But yet here we are. Asking the very same question once again. Why?

It is because as simple as this question may seem to you, the underlying answer for it is not an easy one. Isn’t it?

But why so?

It is because an atom is something so small that we can not see it through our naked eyes. So what we cannot see, we cannot understand it easily.

What Is An Atom – Definition

But simply put,

An atom is the the smallest constituent of any matter.

What does this even mean? To understand this better,let us take a look at the following example.

Let me say I picked up a piece of graphite. Now as you know, a graphite is made up of Carbon element. So then I start breaking this graphite I picked up into smaller pieces. I will continue to break each of the smaller pieces into further smaller pieces.

So now at this point in time I will ask you this question. How far can I continue to break the graphite? What is the smallest form of graphite I can have?

Then answer for that is – I can break it down until I have only one atom of Graphite left!

So, that is what an atom is. It is the smallest particle of any matter.

But then what will happen if I continue to break the atom even further? The answer is, if you continue to break an atom, it will stop being that element.

Wait…what does that mean?

It simply means that if I break a Graphite atom further, it will stop being a Graphite element all together. It will turn into some other element!

So in other words, an atom is the smallest constituent of any element. If we try to break it any further, it stops being that element any more!

But why does an atom change into other element if broken further? To answer this, we first need to know how an atom looks like. So we will do just that!

What Is An Atom Made Up Of?

An atom, simply put is made up of 3 components:

  • Proton
  • Neutron &
  • Electron

But wait. Didn’t I just say an atom cannot be broken down any further. Then how did we get these 3 components, eh?

Yes, your question is valid. You see, I did not say an atom cannot be further broken down. But instead, what I said is that if you break it any further, it stops being that element.

Do you see the difference?

So in reality an atom can be broken down into protons, neutrons and electrons. But if you want to break it any further, you will have to start removing the total number of protons, electrons and neutrons in it.

But now, removing a few electrons or neutrons from an atom will not change the atom’s element. So if you remove even a single proton from it and you would have changed the element itself!

So this begs us to ask the next question:

What Is An Element?

An element is a substance that is made up of only one type of atom. So when you look at a Periodic Table – which lists all the elements you will find in the universe, you will find a total of 118 elements in it.

Now each of these elements differ from one another based on the number of Protons present in it. So as you can see, it is the number of protons that determine the type of element it is. And as a result, “number of Protons” in an element is so significant that it has its own tern for it – called the Atomic Number.

What Is An Atomic Number?

An atomic number is the total number of protons present in an element. It is represented by the symbol Z. So for example, Hydrogen has an atomic number of 1 (i.e. Z=1). So what it means is that an Hydrogen atom has one Proton in it!

So this calls for another question now. Take a look at the Periodic Table below:

Periodic Table
Periodic Table

Now answer this question for me:

What will happen if if I try to add one more proton into the Hydrogen atom?

As you can see in the periodic table, an Hydrogen atom has the atomic number 1. So it must be having 1 Proton in it. Now when I try to add another Proton to it, I am actually changing it’s atomic number to 2, right?

Then what is the element in the periodic table that has an atomic number of 2? Yep, you are right. It’s Helium!

So you changed a Hydrogen atom to an Helium atom by adding a proton to it! Pretty cool, eh! Feeling like God already?! 😉

So based on this, you now know that can turn an element into any other type of element by just adding or removing protons to it, right?

So then tell me this, how protons do you need to add to Hydrogen(H) atom to turn it into Gold (Au)? If you answered 78, then you are absolutely right!

So does that mean we can easily create Gold out of other elements? Unfortunately NO. This is what alchemists have been trying to do for a long time. But so far they have not succeeded in doing so! 🙁

What Is A Nucleus Of An Atom?

An atom as I told earlier is made up of Protons, Neutrons & Electrons. But how are they packed together inside an atom?

Well you see, an atom consists of a central core to it called a Nucleus. This is where Protons & Neutrons stay packed together. But on the other hand, Electrons are revolving around this nucleus at different orbit levels depending on the type of the element. So this calls for another question:

Why Electrons Revolve Around A Nucleus Of An Atom?

The answer to this is because both Electrons & Protons are electrically charged while Neutrons are neutral. An Electron is said to be negatively charged where as a proton is positively charged.

So as you know, like charges repel each other and unlike charges attract each other. So, electrons are attracted towards the protons and try to fall into the nucleus.

On the other hand, protons which are in the nucleus tend to repel each other, but they are still together because of a force called strong nuclear force. The neutrons in the nucleus will also help the protons by being positioning themselves between two protons.

Can you see atoms through a microscope?

Err…NO, not really. But why?

That is because an atom is extremely small in size. It is so small that it measures just ten-millionth the size of a millimeter, as explained below.

What is the size of an atom?

The size of one single atom is about ten millionth the size of (1/1010) of a millimeter.

Or you can also say it as (1×10−8 cm).

Or it is sometimes even expressed as 100 picometer.

Now that is a number that is so small that we can not even perceive its size correctly. So for us to get a better scale of it, here is a little fodder to trigger your imagination.

Let us take a look at a scale ruler that we find in our geometry box. Here is how it looks like, right?

A scale ruler measuring in centimeters
A scale ruler measuring in centimeters

Now as shown in the pic above, the distance between two taller markings in this ruler is 1 cm. So then here is my question for you.

How many atoms can you fit in a straight line horizontally within this 1 cm space? Do you want to take a guess?

Well, here is your answer in the pic below:

Size of an atom visualized.
Size of an atom visualized.

So as you can see from the above image, we can stack up to 10,00,00,000 or 108 atoms in a row within a size of 1cm!

Now isn’t that something!


So this was just a basic introduction to what an atom is and how it looks like. There are many more concepts related to atom that we could not discuss here as the article started to grow too big. So I will be covering more about it in the future articles.

Learning about the fundamentals or basics of electricity is a must for someone who is trying to get into electronics using boards like Arduino or Raspberry Pi. So this article should have set you in the right direction to learn the basics of it.

Now if you still have any questions related to it, leave a comment below this article and I will try my best to answer them. Alright?

So until next time, take care and happy learning! 🙂


Buy Arduino Nano Online At A Low Price

In this article, we will learn how you can buy an Arduino Nano online. We will learn how to buy it online in India at a low price. But before we do that, let us first learn what an Arduino Nano is in the first place. So are you ready to dive in? Then let us go!

What Is An Arduino Nano Board?

If you are still a beginner in the embedded world, chances are you may have not heard about Arduino Nano until now. So what is it?

Well, the Arduino Nano is a small computer board that one can buy to learn more about computers. It is a computer on a single PCB board that contains all the circuitry needed to run the software code on it.

Oh wait a second here! So we are learning that it is a single board computer, right? Cool! But then you may be wondering how does this Arduino Nano look like?

I am glad you asked this question! Here is a picture of an Arduino Nano board I will share with you for your pleasure. Take a look at it.

Arduino Nano Board Available To Buy Online
Arduino Nano Board You Can Buy Online

Woah! That is one weird looking single board computer out there! But what are all those pins coming out of it?! Looks scary isn’t it?

But don’t worry. Even though the Arduino Nano board looks like that, it is actually easy to use. There are many tutorials we have that will teach how to use it. So learning how to work with it will never be a problem at all.

So with this introduction to Arduino Nano, it is time for us to move on to know how we can buy it online.

How To Buy Arduino Nano Online?

There are many sellers who are selling the Arduino Nano hardware board. They are selling these Arduino Nano boards in online stores as well as in the offline stores. However, when you try to buy the Arduino Nano board, you will realize that the price differs a lot from one seller to another!

Now this is happening because there they are all not original Arduino boards. You see, the thing is Arduino boards are all launched as open source hardware boards. So, their circuit as well as their board designs are all available for free for anyone to use.

So, what happened because of this is that there are many Arduino Nano clones as well. Since these Arduino clones are coming from China, they will be of cheaper cost.

So in that case, who is the original manufacturer of Arduino Nano?

Arduino is the company that designs and manufactures the original Arduino boards. But as this company is from Italy, the products it makes are costlier than their clones.

So now this begs us with our next question which is:

Who manufactures the Arduino clones?

Most of the Arduino clones manufacturers are from China. So since the manufacturing cost of these boards are cheaper in China as compared to Italy, the clones are always cheaper.

So here is the real reason then! This clearly tells us why we see so much difference in the price for the same Arduino Nano boards across different online websites!

So depending on how much you can spend, decide which Arduino Nano board you want to go for.

What is the difference between an original Arduino Nano Vs a Nano clone?

Now as I told earlier, both the original and the cloned Nano boards use the same circuit design. So nothing is different over here. But there is one difference between the two. And this difference is in terms of the quality of components used.

So if you want a higher quality board, you pay more and go for original Nano module. But on the other hand, if you want to spend less, just go for a Nano clone. It really doesn’t matter at all. Trust me!

What Is The Price Of Arduino Nano Online In India?

If you are from India, you can buy the original Arduino Nano online at a low price of Rs.1449. But if you are OK to buy a cheap Arduino Nano clone, you can buy it at a low cost of Rs.200!

What Is The Price Of Arduino Nano Online In The US?

In the US, you can buy an original Arduino Nano at a cost of $22.00. But on the other hand, a cloned Arduino Nano will only cost you around $9! It’s as cheap as that!

What Is The Online Price Of Arduino Nano In The UK?

But if you are in the UK, you can buy the Nano board at just GBP20!

Have you looked at the new Arduino Portenta?


So there you have it. We just looked into the price of an Arduino Nano in 3 different regions. I also explained to you why its price changes so much when you want to buy it online. It is because of the clones that has reduced the price of these boards.

I hope you have got what you were looking for in this article. If you still have any more questions on it, ask me right away and I will answer you.

I hope you will have fun working with them. These are the best things you can work on to gain good knowledge. It is also one the best hobby that will keep you busy for some time! So enjoy with your new toys! Until next time, ciao! 🙂


Arduino Portenta Technical Specification & Price

In this article, we will take a look at the technical specification of Arduino Portenta. But along with this, we will also learn about its price during its release date.

Just today, Arduino launched its new product called “Arduino Portenta” at CES 2020 show in Las Vegas. So far from what I have learnt, it is an IoT device. Which means that you can use it to connect things in your house to the internet!

But not just that! The company is also claiming that we can use Arduino Portenta even in industrial applications.

Ok, all this is fine. But why do we even need this device in the first place? To answer this question, we first need to discuss the technical details of Arduino Portenta. So let us first do that!

Arduino Portenta H7 Technical Specification

Arduino Portenta H7 Processor

The Arduino Portenta H7 is driven by the ST Microelectronics’ STM32H747XI low power processor. This processor is made up of dual ARM Cortex cores.

The first ARM core present in it is a Cortex-M7 running at 480 MHz. On the other hand, the second ARM core is made up of Cortex-M4 and running at 240 MHz. So with these two cores together, this ARM processor is able to run Arduino code, Python and Javascript code as well!

Now this is very interesting! Since it can run Javascript, many of the web developers will be able to work on it!

What OS does the Portenta H7 run?

We got to know that Portenta H7 is running on Arm’s Mbed OS! This is amazing! Being able to run an embedded operating system will mean we can make use of all the resources efficiently!

What type of connectivity does the Portenta H7 have?

Arduino mentioned that they support all the standard connectivity we can expect. So that means it has support for Bluetooth Low Energy, WiFi and LTE as well!

UPDATE On The Radio Module Of Arduino Portenta

We just got to know that the Arduino Portenta features a Murata 1DX dual WiFi 802.11 chipset. This chipset also has support for Bluetooth 5.1 BR/EDR/LE!

Arduino Portenta H7 with Technical Specification and release date
Arduino Portenta H7 IoT Module

What GPU Type Can We Find In Arduino Portenta H7?

The technical specification of the Arduino Portenta H7 mentions that it features a Chrom-ART graphical hardware accelerator.

What does the technical specification say about Timers in Arduino Portenta H7?

Alright guys. We know that in order for us to work with any time sensitive operation we need support of timers. So how does we score here? Well luckily on the timer front, the board has a total of 22 watchdogs and general purpose timers in it. So we have all the room to take its advantages!

But what about the UART ports in Portenta H7?

Ofcourse even though we have moved towards wireless connectivity, we still need good old UART ports for many reasons. So how do we fare on this front? Well the Arduino Portenta H7 strikes back once again! It is exposing a total of 4 UART Ports. And among these 4 ports, two of the UART ports have support for flow control.

How many connectors are exposed on the Arduino Portenta H7 board?

The Arduino Portenta H7 board exposes a total of 160 pin connectors. These connectors are grouped into two 80 pin sets and will expose all the peripherals present in the Portenta H7 board.

What type of USB does Arduino Portenta H7 support?

On the USB front, Arduino Portenta H7 exposes a USB Type C connector. This USB-C connector has support for host/device, displayPort out. It can operate at high speed or full speed USB protocol configuration. The Portenta H7 USB-C also supports Power delivery.

What is the operating temperature range of Arduino Portenta H7?

Arduino Portenta H7 can operate at a temperature range lying between -40 °C to +85 °C when running without the wireless module. But with the wireless module, Portenta H7 can operate in the temperature zone of  -10 °C to +55 °C.

What is the operating voltage of Arduino Portenta H7 acccording to its technical specification?

Arduino Portenta H7 works at 3.3 Volts.

What type of battery does Portenta H7 support?

The Arduino Portenta H7 runs on a Li-Po battery. This battery has an operating voltage of 3.7 Volts and a discharge rating of 7000mAh.

Does Arduino Portenta H7 support an SD Card?

Yes it does! The Portenta board has an SD card interface support. However, this SD Card interface is available only through an expansion port. So that is a bit of a bummer! 🙁

But now that we know the Arduino Portenta H7 technical specification, when will it Release?

I know I know. No matter how good the device is, we cannot take advantage of it until it gets in our hands, right? So we can understand when you are eager to know when this module is going to be released.

So from what we got to know, Arduino Portenta H7 is already made availale for beta testers. But it is going to become available for everyone by February 2020! Guys, that means we are just a month away from getting hold of it in our hands!

Now that we went through it’s technical specification, What will be the price of Arduino Portenta H7?

Cool! So now that we know we can get hold of Portenta by next month, our next question is obviously this.

How much it is going to cost?

Unfortunately at this point in time, I could not find an answer (Look for update at the end of this article for pricing information) for this. So I will continue to look out for this information. Once I find it, I will revisit this article and update it with the latest price. But until then, I can only leave you guessing about it.

But on the other hand, if you have any idea about it, let me know in the comments below. And not just that, if you have any other information about Portenta H7 in general that I have missed here, do let me know. In this way, I can update this article in the future for others to benefit out of it.

So there you have it. I have shared all the information I had about Arduino Portenta H7 here. While for me this device is something I am eagerly looking forward to, I wish it had a better name. Somehow for me, the name Portenta H7 is becoming difficult to remember. But may be it is just me I guess.

So any case, I will end this article at this point. So see you guys again in the next article. Until then, take care! 🙂

Latest Update On Arduino Portenta Price

We just got to know that Arduino Portenta will cost USD 99.90 + Tax.

So the cost of Arduino Portenta in the US will be $100 + taxes

The cost of Arduino Portenta in the UK will be around GBP 77 + taxes

The cost of Arduino Portenta in the European countries will be around 90 + taxes Euros

And finally the cost of Arduino Portenta in India will be around Rs.7200 + taxes


Huawei P40 Pro Specification, Release Date & Price In India

We just came across some leaked information on Huawei P40 Pro specification. We got to know some details on its specification, release date and price in India. Since it is one of the most awaited Android smartphone, we thought we would write about it here.

Huawei P40 Pro Specification

What OS Does Huawei P40 Pro Use?

So Huawei P40 Pro is an upcoming smartphone that runs on Android OS. But more specifically, it will be running Android 10 OS. However, it will not be a pure Android 10 OS, but come with EMUI skin running on top of it.

But Wont Run Google Services!

But what is even more interesting is the news that it will not have Google services running on it. Instead, it will be replaced by Hauwei Mobile Services.

What Processor Does Huawei P4 Pro Have?

Moving further with Huawei P40 Pro Specification, let us look at its processor. We have learnt that Huawei P40 Pro will use Kirin 990 SoC.

Huawei P4 Pro Smartphone Specification
Huawei Logo

Huawei itself is the manufacturer of this SoC. Kirin 990 supports 5G, so that is good as most of the operators will be moving to 5G soon.

What Is The Display Size Of Huawei P40 Pro?

The next item in Huawei P40 Pro specification to look at is its display. From what we know so far, it looks like Huawei has taken a good decision over here too. Instead of going crazy on the display size, they have kept its size at 6.5 inches. It is also said that the screen will curve on its edges, giving it a premium look. It will also have a 120Hz refresh rate.

What Is The Battery Capacity Of Huawei P4 Pro?

On the battery front, the leaks says that Huawei P4 Pro could have a battery capacity of up to 5500 mAh. We can be pretty sure that it will also include a super charger for fast charging.

What USB Connector Type Will Huawei P4 Pro Sport?

The leaks tell us that this Android smartphone will sport the latest USB Type-C connector. This is really good, because we dont have to worry about the problems we had with older USB types anymore, If you are not sure what benefis USB Type-C brings in, read our earlier article that explains this in detail.

What About It’s Camera?

We know that you have been waiting for an answer to this question. From the information we have gathered so far, we think that it will have a penta-camera setup. We are told that it will have a 20MP ultra-wide angle camera, a 12MP periscopic camera, a dedicated macro camera and a 3D camera. While this all looks nice, we will need another confirmation about it for it to be sure. So fingers crossed at that.

Hauwei P40 Pro Release Date

So that was all that we know about the Huawei P40 Pro Specification. But moving beyond that, let us look at its release date. We learn that P40 Pro will be launched around March 2020. So, not too far away if you were planning to buy a new smartphone anytime soon.

Huawei P40 Pro Price In India

So finally, let us discuss about P40 Pro price now. We are getting an estimated price of this Android smartphone in India. We think that Huawei P40 Pro will retail at a price of around Rs.74,000. Please note that this is just a speculated price. We will get to know its real price only during it’s launch time. So take this price with a grain of salt.


So that was about Huawei P40 Pro specification, price and release date. We will further continue to update this article as and when more information becomes available. So watch out this place for more. But until then, take care! 🙂


Redmi K30 Release Date, Price & Specifications

For all the fans of Redmi who were waiting for the release date of Redmi K30, wait no more! Redmi, the sister company of Xiaomi has officially launched its flagship 5G Android smartphone Redmi K30 in China today. We will discuss more about the release date, price and specifications of the Redmi K30 in this article, so buckle on!

Redmi K30 is the successor of Redmi K20 and Redmi K20 Pro back that was launched earlier in May 2019. Redmi K20 Pro was one of the flagship smartphone by Redmi that ran on a Qualcomm Snapdragon 855 processor. On the other hand, Redmi K20 was a more affordable version of the flagship phone and ran on Snapdragon 730 processor.

As we approach the new year, Redmi has once again launched the next iteration of its flagship phone Redmi K30 in China on December 10, 2019.

Redmi K30 available in blue, purple, and pink colors
Redmi K30 available color options

So what does this new iteration of the Redmi K30 packs within itself? What are its specifications? Let us take a look at each of these in the following sections.

Redmi K30 5G & Redmi K30 4G Smartphone Specifications

Which Operating System (OS) Does Redmi K30 Run On?

The Redmi K30 5G smartphone runs on the latest version of Android OS – Android 10. Some of the features of Android 10 includes support for dark themes, smart reply, Live caption, Google Maps Incognito Mode etc.

Processor/CPU/SoC Of Redmi K30

Continuing with its ritual of going with Snapdragon processors, Redmi K30 comes packed with the powerful Qualcomm Snapdragon 765G SoC. The main feature highlight of Snapdragon 765 processor is that it is an ARM based octa core processor. It comprises of two Kryo 475 cores running at 2.4 and 2.2 GHz speed respectively. Along with this, it also contains six efficiency cores running at 2.2GHz for power efficiency. It also packs Adreno 620 GPU for intense graphics experience for its users.

What Display Is Used In Redmi K30?

Redmi K30 5G smartphone comes with a 6.67 inch Full HD (FHD) display. The main highlight of this display and the smartphone itself is that it has a refresh rate of 120Hz. The display has a punch hole in it to accomadate the front camera while the display itself runs through the entire front body of the smartphone. The Redmi K30 5G smartphone’s display is protected by the Corning Gorilla Glass 5, thereby ensuring a durable smartphone display package in K30.

How Many Rear Camera Sensors Found In Redmi K30 5G & Redmi K30 4G Smartphone?

Redmi K30 features 4 different rear camera sensors each of which comes in handy for specific use cases. The rear camera sensors configuration are as follows:

Primary Camera: 64MP Sony IMX686 sensor. Capable of capturing videos at 4K resolution at 30 fps. On the photos front, it has support for f/1.9 F-Number aperture.

Secondary Camera: 8MP 120° Wide-Angle Camera. It can capture videos at High Definition i.e. 1080p at 60fps. On the photos front, it has support for f/2.2 aperture.

Tertiary Camera: 2MP depth sensor with f/2.4 aperture.

Quaternary Camera: This camera set is specifically added for macro photography. On Redmi K30 5G model, the sensor used has a resolution of 5MP at f/2.4 aperture. On the other hand, Redmi K30 4G model has a resolution of 2MP at f/2.4 aperture.

The rear camera also supports video recording in slow motion, ultra-wide video shooting.

How Many Front Camera Sensors Found In Redmi K30 5G & Redmi K30 4G Smartphone?

Redmi K30 5G & 4G smartphones both feature two front facing camera sensors. The primary front facing camera sensor is having a resolution of 20MP while the secondary front facing camera sensor is actually a depth sensor with a resolution of 2MP to provide the Bokeh effects and depth to images and videos.

What About Memory & Storage Of Redmi K30 5G & 4G smartphone?

Memory & storage forms the most important technical aspect of any smartphone. A smartphone with good amount of RAM is a must if you want to have a smoother user experience when using apps. On the other hand, having sufficient storage capacity is a must if you plan on shooting videos on 4K resolution. Storage (aka ROM) technology used also decides how quickly you will be able to transfer data between your smartphones and your computer.

Having mentioned all that, Redmi K30 5G and Redmi K30 4G smartphones both comes in two variants of RAM memory – 6GB LPDDR4X RAM or 8GB LPDDR4X RAM.

They also come with three variants of UFS 2.1 ROM Storage options – 64GB, 128 GB or 256 GB UFS ROM.

In addition to above all, both Redmi K30 4G and Redmi K30 5G provides support for expandable memory storage i.e. SD Cards upto 1TB in size.

What Is The Battery Capacity & Charging Of Redmi K30 5G & Redmi K30 4G Smartphones?

The Redmi K30 smartphones comes with a battery capacity of 4500 mAh. Both Redmi K30 4G and Redmi K30 5G smartphones support fast charging but with different wattage. Redmi K30 5G supports fast charging at 30W while Redmi K30 4G fast charges at 27W. With just 3W difference, this shouldn’t be a big deal really though!

Redmi K30 supports USB Type C connector. If you want to know more about USB Type C, check this link out!

What Is The Dimension Of Redmi K30 5G & Redmi K30 4G?

Both Redmi K30 4G and Redmi K30 5G have similar dimensions of 165.3 x 76.6 x 8.79 mm

What Is The Weight Of Redmi K30 smartphone?

Redmi K30 weighs a mere 208 gms. This is reasonably good considering all the goodies it comes packed with!

Does Redmi K30 Contain 3.5mm Audio Jack?

Yes! Redmi K30 saves the world again by retaining the 3.5 mm audio jack.

Does Redmi K30 Contain Finger Print Scanner?

Surely! It is present in the side of the body!

Does Redmi K30 Contain IR Blaster?


What Is The Price Of Redmi K30 In China?

Both Redmi K30 5G and Redmi K30 4G were launched in China on 10 December, 2019. It was launched in multiple configurations with basic prices ranging around these markups:

Redmi K30 4G 6GB RAM + 64GB UFS Storage @1599 CNY

Redmi K30 5G 6GB RAM + 64GB UFS Storage @1999 CNY

What Is The Price Of Redmi K30 In India?

Redmi K30 is yet to be launched in India and the prices are yet to be ascertained. However considering the price of these smartphones in China, we can only estimate that it should cost somewhere between 16,000 to 20,000 INR.

Redmi K20 Vs Redmi K30, Advanages And Disadvantage

One of the major attraction of Redmi K30 is its display with 120Hz refresh rate. However aside from this, the latest Redmi flagship smartphone seems to have lost a few important components from its predecessor Redmi K20 Pro. Some of these includes the missing AMOLED screen, missing telephoto sensor, 5G mmwave support etc.

Is this really a deal breaker? Maybe not. However they do matter for those existing Redmi K20 and Redmi K20 Pro owners who are looking for an update to Redmi K30 smartphone. However with the Redmi K30 price point somewhere close to $325 can just soften the deal and convince them to upgrade!

What do you guys think of Redmi K30 Android smartphone? Will you buy one? Do let us know in the comments below!