This project demonstrates how to use a TTP223 capacitive touch sensor with an ESP32-C3 development board that includes a 0.42″ built-in OLED display. Each time the sensor is touched, a counter increases, and a short … Read more
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Motion detection is a popular application in home automation and security systems. In this project, we’ll use an AM312 PIR motion sensor with an SSD1306 OLED display and an Arduino Nano 33 IoT. When no … Read more
PIR Motion Sensor Radar with OLED SSD1306 using Arduino Nano 33 IoT
Introduction: Potentiometer Wiring are commonly used adjustable resistors in electronic circuits. They are widely used in volume control, brightness adjustment, signal calibration, and other fields. This article will analyze the basic concepts, working principles, common … Read more
The Complete Guide to Potentiometer Wiring: Principles, Types, Examples & Selection Tips
Build a sleek and modern weather station using an ESP32 board with a built-in 0.96″ OLED screen. This project fetches live weather data and 3-day forecasts from OpenWeatherMap and displays it in a stylish sliding … Read more
ESP32 OLED Weather Station with Real-Time Forecast
Introduction The HC-SR04 Ultrasonic sensor is a user-friendly, cost-effective sensor ideal for hobby electronics projects and can also be utilized in home automation applications. This sensor is essentially a sound sensor that uses high-frequency sound … Read more
Working principle of HC-SR04 Ultrasonic sensor
Introduction Unlike a servo motor, which comes with a dedicated control board within its housing, a stepper motor or a simple DC motor does not come with a control board that can control the speed … Read more
Working Principle of the L298 H-Bridge Motor Driver
Introduction To step down an AC voltage, we use a transformer; however, to step down a DC voltage source efficiently, we use a step-down buck converter for the process. The LM2596 is a switching regulator … Read more
Working Principle of the LM2596 Buck Converter
Understanding Power Supply Basics 1. Types of Power Supplies – Linear Power Supply: This supply is thus an analog where transformers reduce voltage and how diodes rectify; easy and stable across outputs but relatively inefficient … Read more
How to Fix the Power Supply?
The world of electronics is rapidly evolving. Every year, devices become smaller, faster, and more powerful. This presents unique design and manufacturing challenges that standard printed circuit boards (PCBs) cannot meet. Rigid-flex PCBs, came into … Read more
The Ultimate Guide to Rigid Flex PCB: Everything You Need to Know
What are Metal Film Resistors? MFRs (metal film resistors) are made by vacuum evaporation or infiltrating metal films onto ceramic pipe frames. Cut the film to obtain a more precise resistance. The film is attached … Read more
Comparing Metal Film and Carbon Film Resistors
What is an Amplifier? An amplifier is an electronic device used to increase the amplitude (or strength) of signals, typically by taking weak electrical input signals and amplifying them into stronger output signals. Amplifiers can … Read more
What Does an Amplifier Do in a Car?
Understanding Basic Inductance Inductance, as a basic property of electronics, represents the way in which a component is capable of storing energy when a current flows through it. Measured in Henries (H), inductance refers to … Read more
What Does Inductance Tell You?
Why Do Capacitors Fail? If you don’t know about the capacitor failure reason, then don’t worry about it. I have listed down some reason for you: Dielectric Breakdown When a potential difference is applied across … Read more
Why Do Capacitors Fail?
What are Brushless Motors? A brushless motor is an electric motor that operates without brushes, unlike traditional brushed motors. Instead of using brushes and a commutator to control the current flowing through the motor windings, … Read more
The Revolution of Brushless Motors: Powering the Future
Choosing the right button battery can be a daunting task, especially when faced with options like the LR44 and CR2032. This comprehensive guide provides assistance when making these crucial choices for your devices. What are … Read more
LR44 vs CR2032: The Ultimate Guide to Button Battery Selection
Have You Wondered Why Your Music Sounds Different on Different Audio Systems Ever been curious as to why music sounds differently across audio devices? At the core of all audio systems lies amplifiers. These unsung … Read more