This article shows you how to design a high-power motor driver for Bluetooth Controlled Robot using Arduino and relay. Previously, we had posted an Arduino-based Bluetooth-controlled car designed around L293D motor driver IC. There is some limitation of the L293D motor driver IC i.e. output current is limited to 600mA. What if you wish to drive a DC motor that consumes more than 1A? Let’s say 5A. For this, you need a more powerful circuit that delivers appropriate power to the motor. So, here you will learn how to make…
Read MorePause and Resume Arduino Program using Switch
Arduino is an open source and become famous in very short time, due to its powerful features and simplicity. Arduino comes as boon for inventor, artist etc. One can make their own system without having much knowledge about core electronics and assembly programming. In this article you will learn how to pause the code and resume using a push button switch. Sometime, we want our code to run only when user do some action like to press switch of get some value of sensor. Few years back while making game…
Read MoreNeed to Know About Being Safe Online
Here in this article, we tell you everything needs to know about being safe online. As we spend more and more time online, it is important to be just as careful about security online as we are in the real world. What you Need to Know About Being Safe Online We will answer the various questions regarding how to stay online safe and how to be sure you are safe online. What are various kinds of cybercrimes prevalent today? Hacking started as a simple art to gain access to an…
Read MoreArduino Based Caller ID for Bike
This article shows you how to make caller ID for two wheeler’s i.e. bike or scooter. This caller ID display cell phone number when any one call you or when you call anyone while riding bike or scooter. Sometime It is difficult to identify the caller while riding two-wheeler vehicles because usually we keep our mobile either in pocket or in bag. Sometime even we get confused whether the vibration is of vehicle or of mobile. By using this simple device one can know about caller and can easily distinguished…
Read MoreVirus or Fake Virus Warning
Confusing fake virus warning; which messages are actually dangerous and which messages are harmless? This is how you can find it out. Do you trust the website that you visit regularly? Malware developers hope so, because if the browser displays a warning on a known page, few users believe that there is a virus and ignore the warning. Attacks on well-known sites show that this trust can be dangerous. About 500,000 websites were victims of an attack that infiltrated dangerous malicious code into the sites, including a few podcasts on…
Read MoreHow to Secure Data in Computer
We store everything, from media to important business documents, on our PCs. So, it goes without saying that protecting this data is of utmost importance. One can only imagine the amount of damage done if you lose a hard drive full of local data. So in this article, you will learn how to secure data on the computer. There are millions of bugs, worms, viruses, and malware swimming through the Internet, and infection to your PC is more a question of when rather than if. The average user is sure…
Read MoreTop 10 Smartphone Security Tips
Smartphones these days are capable of doing almost everything a low-end PC can do, which is why the growing number of smartphone users often choose to do their work directly from their phones. The increased activity on smartphones, especially involving Internet usage, has resulted in their rapidly increasing popularity as a target for privacy and security attacks. While uninformed users might surf the Web, socialize, transfer files, and pay their bills from the convenience of their phones, they leave their personal information, financial information, and data vulnerable to attacks. So…
Read MoreArduino Color Sensor Project using TCS230
This article shows you how to make arduino color sensor project using TCS230 color sensor. This project can detect almost all color according to their wave length and display it on 16×2 LCD. If we talk about the application of this project, you can use in color shorting or color matching projects, line following robot (if path is other than black and white), multi-color strip reading etc. What is TCS230 Color Sensor? This module consists 8×8 array of photodiode which detect the color and produce corresponding frequency (Square wave). So,…
Read MoreIdentity Theft Threat and Protection
Identity theft has always been a major security concern, even before the advent of the Internet. Now, social media sites, online banking, and even online gaming sites are ponds where identity thieves have ample fish to catch. So let’s talk about what is identity theft, what is a threat, and how to protect yourself from identity theft. Your online identity consists of several unique details that ideally only you should know. While some people might think that your name, address, credit card information, and account number are the only bits…
Read MorePrecision Voltage Regulator
There are various type of voltage regulator available in market, every single types of voltage regulator have it’s own advantage and applications. We have already discussed various type of voltage regulator like fixed voltage regulator, Adjustable voltage regulator, Tracking and floating voltage regulator. Here, in this article we are going to discuss about Precision voltage regulator and Switching voltage regulator. At first let’s see what is precision voltage regulator. Description of Precision Voltage Regulator High-precision voltage regulators are available for fixed output or adjustable output as well as for most…
Read More