Introduction In small electronic projects that need an AC supply, the conversion of DC into an AC supply is a big deal. Even in big projects designers need to convert the DC voltages. For example, … Read more
Afzal Rehmani
Introduction The article explores the integration of the ESP32 microcontroller with the Stepper Motor 28BYJ-48 and the ULN2003 Motor Driver. Stepper motors offer precise positioning and rotation, making them ideal for various applications. The 28BYJ-48 … Read more
ESP32 with Stepper Motor 28BYJ-48 and ULN2003 Motor Driver
Introduction Weather matters to all of us; good weather changes our moods, mind, and feelings. However, sometimes unexpected weather ruins our plan. It’s either a trip with our friends or a party with relatives if … Read more
Mini Weather Station using ATtiny85 and DHT22
Overview The Seedstudio XIAO, powered by the RP2040 microcontroller, has quickly gained popularity in the maker and electronics community due to its affordability, versatility, and robust performance. One of the fascinating aspects of the RP2040 … Read more
Interfacing DHT22 Temperature Sensor with XIAO RP2040
Overview Measuring light intensity is a crucial aspect of various applications, from photography to environmental monitoring. A light meter provides an easy and accurate way to quantify light levels, helping photographers capture perfect shots and … Read more
Light Meter using XIAO RP2040 & OLED SSD1306
Overview Earthquakes are scary natural disasters that can cause a lot of damage and danger. Imagine if there was a way to know when an earthquake might happen a little bit before it does. That … Read more
Earthquake Detector & Alarm using XIAO RP2040
Overview Voice recording technology has come a long way, and it has become an integral part of various applications, from voice assistants to security systems. If you’re interested in building your own voice recording system, … Read more
Voice Recording with ISD1820 Module and ESP01
In this tutorial, I will tell you the best way to build a basic Lead Acid Battery Charger Circuit. This circuit utilizes to charge Rechargeable 12V Lead Acid Batteries with a rating in the scope … Read more
How to make a 12 Volt Lead Acid Battery Charger Circuit
Introduction Pulse sensors are used in several projects for athletes, gaming, home appliances, and mobile phone developers where there is a need for reading heart rate data. In this tutorial, I’ll focus on one of … Read more
Heart Rate Pulse Sensor – BPM Meter using OLED & ESP32
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