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KY-022 Module : PinOut, Features, Specifications, Interfacing, Working & Its Applications

July 1, 2025 By WatElectronics

KY-022 Module

An IR receiver module or IR receiver is an electronic component that detects & decodes emitted IR signals from a remote control. This module enables a device to receive remote commands by converting the IR light into a digital signal that the device can process. These modules receive IR radiation at a specific frequency and convert it into a data stream, allowing any processing unit to understand the information. Manufacturers widely use this module in various consumer electronics to enable … [Read more...]

LM7815 IC : PinOut, Features, Specifications, Circuit, Working, Equivalents, Datasheet & Its Applications

July 1, 2025 By WatElectronics

LM7815 IC

The fixed output voltage regulator is an integrated circuit from the LM78xx series. This series mainly includes LM7805, LM7812, LM7824, LM7809, etc. So these regulators are frequently used in electronic circuits to provide a stable output voltage for different input voltages. The term 78 in this series of regulators signifies a positive voltage regulator whereas the remaining number indicates the output voltage provided by the IC. But these ICs suffer from huge heat loss, thus a Heat sink is … [Read more...]

DIY Solar USB Phone Charger : Step-by-Step Guide

June 30, 2025 By WatElectronics

Solar USB Phone Charger

In a world increasingly reliant on sustainable energy, creating your own DIY solar-powered USB charger is not only a great eco-friendly project but also an excellent way to understand basic electronics. Whether you're an engineering student, hobbyist, or eco-conscious traveler, this project is simple, affordable, and doesn’t require advanced skills. This article provides brief information on a DIY solar USB phone charger step-by-step procedure. What is a Solar USB Phone Charger? A Solar USB C … [Read more...]

DIY USB Fan Powered by a Temperature Sensor

June 30, 2025 By WatElectronics

DIY USB Fan

This article explains how to design a DIY USB fan that is powered by a temperature sensor. Additionally, it provides instructions on how to use a temperature sensor (LM35 or DHT11) to trigger a fan, how to power the project via USB, how to build a control circuit using a transistor, and how to test, calibrate, and upgrade the system. DIY USB Fan Powered by a Temperature Sensor The required components to make this DIY USB fan powered by a temperature sensor include the following. … [Read more...]

LM3876 IC : PinOut, Features, Specifications, Circuit, Working & Its Applications

June 24, 2025 By WatElectronics

LM3876 IC

Amplifiers in any high-performance audio system improve the audio source’s signal strength by ensuring optimal fidelity &power delivery to loads. Similarly, the power amplifier is one of the main amplifiers used in high-performance audio systems. So these amplifiers amplify signals and control the performance of a speaker with stability and compatibility in different audio systems. So power amplifiers, are significant in high-performance-based audio systems to ensure fidelity & sound c … [Read more...]

KY-034 Module : PinOut, Features, Specifications, Interfacing, Working & Its Applications

June 17, 2025 By WatElectronics

KY-034 Module

A color flash LED is a small light-emitting diode that produces various colors automatically in sequence. Compared to single-color LEDs, this type of color flash LED incorporates the required components to emit several colors at a set rate, such as green, blue, and red, along with their combinations. This design allows it to flash a variety of colors automatically whenever someone powers it. People frequently use these in decorative lighting systems wherever they need an attractive … [Read more...]

Voice-Controlled Home Automation using IFTTT and ESP8266

June 16, 2025 By WatElectronics

Home automation is no longer a luxury — it’s now affordable and achievable even for beginners. In this article, we’ll walk you through a voice-controlled home automation project using an ESP8266 Wi-Fi module and IFTTT, with no coding required. Whether you're automating a lamp or your entire home lighting, this voice-controlled home automation guide has you covered. Voice-Controlled Home Automation using IFTTT and ESP8266 The required components for basic lamp control include the follo … [Read more...]

LM7818 IC : PinOut, Features Equivalent, Circuit, Working, Datasheet & Its Applications

June 10, 2025 By WatElectronics

LM7818 IC

Voltage regulators are essential components in electronic systems, designed to protect sensitive devices by maintaining a constant voltage level. The LM7818 is a fixed linear voltage regulator from the popular 78xx series, providing a stable 18V output. The LM7818 IC widely used and easily implemented linear voltage regulator. This article explains the LM7818 IC’s pin-out, features, specifications, circuit design, and practical applications. What is the LM7818 IC? The LM7818 is a linear v … [Read more...]

KY-012 Active Buzzer Module : PinOut, Features, Specifications, Interfacing, Working, Datasheet & Its Applications

June 9, 2025 By WatElectronics

KY-012 Active Buzzer

The buzzer module is the most common choice for audio communication between a user and a device. So this module plays a key role in most devices like doorbells, household appliances, alarm clocks, etc. The main function of a buzzer is to change an electrical signal into an audio sound. So these modules are categorized into two different types an active buzzer and a passive buzzer. This article explores a KY-012 active buzzer module, internal structure, working, and its applications. What is a … [Read more...]

KY-025 Module : PinOut, Features, Specifications, Interfacing, Working, Datasheet & Its Applications

June 5, 2025 By WatElectronics

KY-025 Module

The reed switch is a type of electromechanical switch that operates through the principle of magnetism. Professor Valentin Kovalenkov invented it in 1922 at the Petrograd Electrotechnical University (PEU). Walter B. Ellwood developed it into the reed relay in 1936 at Bell Telephone Laboratories. Generally, these switches include a set of ferromagnetic flexible metal contacts, which seal hermetically in a glass envelope. Typically, a magnetic field keeps these contacts open; otherwise, they close … [Read more...]

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Recent Posts

  • KY-022 Module : PinOut, Features, Specifications, Interfacing, Working & Its Applications
  • LM7815 IC : PinOut, Features, Specifications, Circuit, Working, Equivalents, Datasheet & Its Applications
  • DIY Solar USB Phone Charger : Step-by-Step Guide
  • DIY USB Fan Powered by a Temperature Sensor
  • LM3876 IC : PinOut, Features, Specifications, Circuit, Working & Its Applications
  • KY-034 Module : PinOut, Features, Specifications, Interfacing, Working & Its Applications
  • Voice-Controlled Home Automation using IFTTT and ESP8266
  • LM7818 IC : PinOut, Features Equivalent, Circuit, Working, Datasheet & Its Applications
  • KY-012 Active Buzzer Module : PinOut, Features, Specifications, Interfacing, Working, Datasheet & Its Applications
  • KY-025 Module : PinOut, Features, Specifications, Interfacing, Working, Datasheet & Its Applications
  • SSD1306 OLED Display : PinOut, Features, Specifications, Interfacing & Its Applications
  • KY-011 LED Module : PinOut, Features, Specifications, Interfacing, Datasheet & Its Applications

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