Our This guide ESP32 Arduino IoT Relay Control is self-hosted. The working result is here. This kind of project serves the purpose but the UI is just pathetic and you can not easily convert it to an Android or iOS app. Most of us want a working system to get a toggle button control like this one. These days, you have a lot of options for UI such as React.js or just Twitter Bootstrap. You have … [Read more...]
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 Cathodoluminescence?
Cathodoluminescence is a special form of luminescence in which an electron beam coming from an electron source hits a solid surface and stimulates it to emit light, i.e. electromagnetic radiation (functional principle of cathode ray tube). In geology, mineralogy and materials science, an optical cathodoluminescence microscope is used to visualize internal structures of rock samples, ceramic … [Read more...]
Smart Lock and Door Security
A smart lock or smart lock is an electromechanical lock that can be unlocked or locked by input from an authorized device. These inputs are made through a wireless transmission protocol and a cryptographic key. A smart lock also monitors all accesses and can set automatic actions, such as sending notifications about problems to other devices. Smart locks are generally seen as a partial aspect of … [Read more...]
Arduino LED Blinks with Pushbutton Pause
We have published several simple articles on Arduino, LED and pushbuttons. They are a great learning tool for the children, as well as great "templates" for the adults to start a new project. Here is a list of some of the old articles: Arduino 2 Push Button One LED: Switch On/Off Make Beep Sound in Arduino Project Upon Push Button Press Arduino Blink LED Rate Depending On Push Button … [Read more...]
What is RISC V Processor
RISC-V is an instruction set architecture (ISA) based on the design principle of the Reduced Instruction Set Computer (RISC). It is an open standard that is subject to the permissive BSD license. This means that RISC-V is not patented and can be used freely. Thus, anyone is allowed to design, manufacture, develop and sell RISC-V microprocessors (open source hardware). Numerous companies offer or … [Read more...]
What Happened to Symbian OS and Nokia?
The Symbian mobile OS had its origins in Psion's 32-bit EPOC platform; this was used and further developed in a consortium founded in 1998 called Symbian by the mobile phone companies Ericsson, Motorola, Nokia and Psion. Later, other companies, such as Samsung, used the operating system for their mobile phones. Ten years later, Symbian Ltd. was completely taken over by Nokia and successively … [Read more...]
What is Multitasking?
The term multitasking refers to the ability of an operating system to perform multiple tasks concurrently. In general, the processor also offers supporting hardware structures for this. The various processes are activated alternately at such short intervals that the impression of simultaneity is created. Multitasking is thus a variant of a time-multiplexing process. If a computer has several CPU … [Read more...]
How to Create a PHP Installer Script to Create Tables in MySQL Database
When we need to create a small dynamic web application, using PHP and MySQL are our obvious options. When we need to create a self-hosted IoT solution like this guide ESP32 Arduino IoT Relay Control, either we need to instruct the user to create a MySQL database, create tables and populate with data or we can create an installer script so that the job is "automatically" done. When we install … [Read more...]
GC9A01 Round LCD Module for ESP32 and Arduino
If you looking to build a smartwatch then GC9A01 round LCD module is not the ready-to-use solution for you. The company Waveshare sells one unit with this display with integrated Raspberry Pi RP2040, accelerometer and gyroscope sensor. That is called RP2040-LCD-1.28 and the unit costs 1.5 times more than this GC9A01 round LCD module. This is the product description of that RP2040-LCD-1.28 … [Read more...]
How Much RAM Does a WordPress Site on a Dedicated Server Need?
A huge RAM is required to run a WordPress site if you are using Apache with SSL/TLS. 12GB will sometimes feel risky for a WordPress site with 2000 to 10,000 unique visitors per day. Because these days we are using SSL/TLS and there are other software not directly related to WordPress. There are many reasons why so much RAM is required and the need for RAM varies from site to site depending on many … [Read more...]
PC Build for 2023: Configuration of Assembled PC for Online Jobs
Work from home, various online jobs are becoming more common these days. This article will discuss the configuration for productivity needs which will cost you around $1000 including everything and you can easily work with 15 browser tabs opened, edit videos, smoothly use Adobe Photoshop etc. A workstation is a too much expensive option for most and maybe, if you can afford the price tag, Dell has … [Read more...]