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ESP32 vs ESP8266: Which One Should You Choose for Your Project?
If you are starting an IoT or embedded project, one of the first decisions you may face is whether to use the ESP32 or the ESP8266. At first glance, these two microcontrollers look very similar. Both are affordable, both support Wi-Fi, and both are popular among hobbyists, students, and engineers. However, in practice, they are…
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Understanding How Processors and Transistors Perform Logical Operations
Today, we will delve into the working principles of processors and explore how microcontrollers use transistors to perform logical operations. Along the way, we’ll build logic circuits to understand the fundamental functions of transistors. Finally, we’ll design an adder circuit capable of adding two 8-bit numbers to consolidate our understanding. Processors are often described…
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How Does an Elevator Work?
Elevators are an essential transportation and convenience tool for modern buildings. What are the working principles of these elevator systems, their main components, and how does an elevator work? We will answer all these questions in detail in this article. Types and Functions of Elevators Elevators are mainly categorized into two types: hydraulic and…
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What is the Telegraph?
Until 1793, communication across the world was carried out through primitive methods. People used tools such as mirrors, carrier pigeons, fire signals, and letters as communication mediums. Although the telegraph is not widely used today, it was considered a groundbreaking invention for its time. Invented by Frenchman Claude Chappe, this device was the first…
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The Evolution of Automatic Transmissions
Initially, automatic transmissions were considered a luxury due to the comfort they provided and their higher cost. Today, while manual models are still preferred as a more economical alternative, vehicles equipped with automatic transmissions have become quite common. Now more accessible, this type of transmission was first developed in 1921 by steam engineer Alfred…
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How Do Air Conditioners Work?
How Do Air Conditioners Cool?Air conditioners utilize the evaporation and condensation properties of R22 or R410 gas to expel heat from the environment. In split air conditioners, the gas passing through the indoor unit absorbs the heat in the environment and evaporates. This process cools the environment. The evaporated R22 gas reaches the outdoor…
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how does a calculator work ?
Calculators are indispensable tools in our daily lives, performing instantaneous calculations with remarkable speed. This efficiency is largely attributed to advancements in electrical engineering. However, early calculators were far simpler, relying solely on mechanical components.The abacus, often considered the first calculator and computer, enabled users to perform basic arithmetic manually. In subsequent centuries, devices…
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How Does a Currency Counting Machine Work?
A currency counting machine is equipped with various sensors and detectors to ensure accurate counting and counterfeit detection. When banknotes are placed into the machine’s upper hopper, sensors detect their presence, initiating the counting process. Counting Sensors: As each banknote passes through the machine, it encounters counting sensors, typically utilizing infrared detectors. These sensors…
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What is Digital Communication?
With the advancement of communication technologies, modern digital communication systems have replaced analog modulation-based systems. Digital communication systems offer significant advantages over analog systems, including: Pulse Modulation Power Efficiency: In pulse modulation, the transmitted power is concentrated into short pulses, unlike the continuous transmission in analog modulation. Multiplexing Capability: The gaps between pulses can…
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How Do 5D Printers Work in Brief?
Traditional 3D printers have revolutionized manufacturing by transforming digital models into physical objects. However, 5D printers take this technology further by adding new dimensions to the production process. With additional movement capabilities, 5D printers can produce more complex and durable structures. Differences Between 3D and 5D Printers 3D printers operate on X, Y, and…