In our old guide we made VU Meter using microphone and LEDs, also our Arduino door bell project have kind of VU meter with 3 LEDs. Now, our one reader asked how to create good looking but easy Music Analyzer or VU Meter using Audio input from devices like microphone out or smartphone's USB out. Here is Arduino Simple Music Analyzer VU Meter From Stereo Input Project. It is nothing but reproduction … [Read more...]
Computer and Internet
Computer and Internet is catchall section of core computing categories including Cloud Computing, Digital Photography, Virtualization, Networking, Protocols and Others' which are not otherwise more subcategorized. Here also you will get unique articles and news on computer hardware, Software, Networking and Protocols.
How to Use Domain Name Instead of IP Address to SSH
Regular readers know that we have reverse proxy of IPv6 for this website. It is Probably Common to Ask How to Use Domain Name Instead of IP Address to SSH. It is Complicated When Your Domain Has Multiple Servers, Like For Reverse Proxy. It depends on your current computer's IP for setup like ours. For dedicated servers, possibly you have more IP v4 addresses to SSH and face traffic. Obviously, we … [Read more...]
Effectiveness of Flushing DNS Cache to Prevent DNS Cache Poisoning and Spoofing
Situation arises when one new developer self-host DNS and use own computer for temporary or permanent hosting DNS. It is mostly a misconception that flushing DNS of localhost provide good immunity. In This Article, We Will Clarify Whether Regular Flushing DNS Cache to Prevent DNS Cache Poisoning and Spoofing is Sufficient to Provide Them an Acceptable Level of Security. The DNS vulnerabilities … [Read more...]
Arduino : LED Switch On By Push Button Switch Off By IR Obstacle Sensor
First, we made IR Obstacle Detection Sensor For Dimming LED (Stop Event Facing Obstacle), then we made 2 Push Button One LED to Switch On/Off project. Here is Circuit Diagram and Code To Make LED Switch On By Push Button Switch Off By IR Obstacle Sensor and Arduino Board. In next guide, we will improve our Arduino Door Bell - door bell will start with glowing LEDs upon button press and stop when … [Read more...]
Requirements of Platform as a Service (Pass) in DevOps
Platform as a Service (PaaS) is second level of cloud computing. These cloud services provide the users a complete development and operating environment, which are addressed via APIs of the respective provider. PaaS allows companies and software developers to focus on their core competencies without having to worry about maintaining infrastructure, scaling, operations, and middleware all this at … [Read more...]
Configure and Setup SSHFP : SSH Fingerprint in the DNS
SSHFP is SSH Fingerprint in the DNS. Before newer versions of Microsoft Windows, there was only PuTTY like applications to SSH from Microsoft Windows computers. Newer versions officially has Ubuntu Terminal, which needs to be configured. As from Android, there is Terminux application. It is obvious that Mac has iTerm2 and Terminal and GNU/Linux has Terminal. So, nobody should have trouble to use … [Read more...]
Common PNP, NPN Transistors For Arduino, Raspberry Pi Projects
Transistor is kind of scary to many beginners as most commonly, transistors are not given importance than vacuum tubes within twelfth grade course. Here is Kind of List of Common PNP, NPN Transistors For Arduino, Raspberry Pi Projects for the Beginners. Also, in this article, we will discuss basics around transistors. Transistor can be used as a switch or an amplifier. Our guide to use buzzer with … [Read more...]
What is Use of Old Android 2.3 Tablet in 2018-19?
Definitely You Have Old Tablet or Phone For Which You Read Our Guides on Android 2.3! What is Use of Old Android 2.3 Tablet in 2018-19? What you expect we are doing with our Reliance 3G Tab ZTE V9C?, specially after rooting that ZTE V9C at that time and missing WiFi features? It still has usages, we feel they are useless because our mind compares with Samsung Galaxy Note8. What is Use … [Read more...]
PaaS Versus Container (Docker, CaaS)
It is possibly a common question which arises in the mind of who are relatively new around Cloud Computing services or development. It is Practically Not Correct to Compare PaaS Versus Container Like Docker, CaaS. Both Are Different Approaches, PaaS is Quite Older Concept Compared to Container. PaaS is division of Cloud Computing Service Models. Platform as a Service (PaaS) is a service delivery … [Read more...]
Arduino 2 Push Button One LED : Switch On/Off
The thing sounds like childish. It is True That is Very Easy Yet It is Important Basic Behind Using Sensors to Switch On/Off an Event. Here is Circuit Diagram and Code For Arduino 2 Push Button One LED to Switch On/Off Project. In our older how to guide, we have shown IR Sensor to switch off LED. As upgrade of the project, we can use that IR Sensor to switch off LED instead of pushing it with … [Read more...]
What Are AMOLED Display and Gorilla Glass of Smartphones?
AMOLED Display and Gorilla Glass Has Been Popular Out of Marketing by the Companies. What Are AMOLED Display and Gorilla Glass of Smartphones? In very short - AMOLED Display is a display technology like OLED, TFT-LCD are display technologies. Basic is any type of LED display is one multi color RGB LED controlled by a programmable micro-controller, multiple RGB LED controlled via multiplexing. Up … [Read more...]