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Hardware

Detailed article on computer hardware parts like RAM, Motherboard, Processor, Graphics card. Hardware also covers topics on hardware of Server, Single Board Computers like Raspberry Pi to Libre Hardware Projects.

What is Active Noise Reduction (ANR)

Anti-noise is also known as Active Noise Reduction is colloquially understood as a sound that is artificially generated to extinguish sound using destructive interference. For this purpose, a counter-signal is generated that corresponds to that of the disturbing sound but has the opposite polarity. Two different problems have to be distinguished: If a noise source emits sound, one tries to … [Read more...]

How to Replace delay() with millis() : Arduino Programming

In many of the sketches shared by us have the millis() instead of delay(). Not always it is possible to explain a function within a guide on how to do a thing. In this article, we will explain about millis() and provide some easy examples so that you can reproduce yourself. It is normal that the Arduino users initially use the delay() function. The main reason is the blink example is the thing … [Read more...]

Arduino LED Candle : Some Codes to Help You

Thanks to China for making various designs of LED candles available all over the world. Indeed, most of these LED candles are not closest to the real candle, but they do give us the idea to think around playing around creating our microcontroller controlled LED candle. I was looking for a realistic feel and soon discovered that two people in project sites already worked a lot behind the creation … [Read more...]

How an Engine Generator Set Works

A generator set is an autonomous device capable of producing electricity. A generator set is a machine that moves an electric generator through an internal combustion engine. They are commonly used when there is a deficit in the generation of electricity from somewhere, or when power cuts are frequent. Likewise, the legislation of the different countries may require the installation of a generator … [Read more...]

What is On-Board Diagnostics (OBD)?

On-board diagnostics (OBD) is a vehicle diagnostic system. During driving, all exhaust-influencing systems are monitored, in addition to other important control units whose data is accessible through their software. Any errors that occur are displayed to the driver via an indicator light and permanently stored in the respective control unit. Error messages can then be queried later via … [Read more...]

What is a Smart Speaker?

A smart speaker is an Internet-connected speaker that transmits music or voice wirelessly and integrates the functions of an intelligent personal assistant (IPA) via non-invasive voice control and speech recognition. No uniform term has yet developed for these devices, which is why terms such as intelligent loudspeakers and networked loudspeakers are also used to denote them. The speaker … [Read more...]

Best Earbuds for Samsung Smartwatches

LTE smartwatches are great since we can avoid carrying our fragile, costly smartphones everywhere. One of the two uses of smartphones is handling calls and listening to music. While some apps allow the smartwatches to use the cameras of the smartphones, smartwatches are largely a device without their camera. A basic question many users tend to ask (I was among them once), why we will buy … [Read more...]

How To Easily Create Android App Controlled Local Devices With ESP32

For DIY IoT setup, we already have guides with IBM Watson IoT. In those guides, we have mentioned an Android App named "HTTP Shortcuts" for making the thing a bit smarter and professional. You'll not need to set up IoT to only locally control a device, for example, a water pump probably does not need control over the internet. In these cases, you only need Wi-Fi. Here is the code snippet for … [Read more...]

What Are the Problems of Smart Switches and Smart Sockets

Automation does not always need microcontrollers and Wi-Fi. The ICs, transistors and basic sensors can help to automate a lot of things. Smart sockets and smart switches are definitely great tools to control electronics of one house from another house. But, we are a necessity to tell you the potential problems and limitations of smart switches and smart plugs. Smart switches and smart plugs … [Read more...]

What is an Open Source Hardware?

Open Source Hardware is a piece of hardware that is manufactured according to the free blueprints. The movement and idea are close to or goes back to the Free Software, Open Source and DIY movement. Even if "open source hardware" often has a lot in common with open source software, "open hardware" can also take place far away from software technology: For example, the project "Open Source Car" … [Read more...]

ESP32 and Coin Vibrator Motor

Coin vibration motors or small vibration motors can be used for different purposes, such as an alert instead of a beep. A Vibration Motor Module is sold which includes the required resistors and transistors. They cost around $3-$4 per piece. 10mm and 12mm coin vibration motors are also sold as a component. If you are using the module, you can connect : ----------------------- ESP32 | Vibration … [Read more...]