Hacks of Electronics
The LA3600 Audio Equalizer Circuit is a five-band graphic equalizer, meaning it divides the audio spectrum into five different frequency bands (from low bass to high treble) and allows independent control of each band. This provides a balanced and customizable audio experience. In audio systems, equalization is one of the most essential processes for improving […]
Walking into a science fair, the projects that grab attention are the ones that move, blink, beep, or spark curiosity. Electronics projects do all of that and more. They’re practical, creative, and they give students a chance to show problem-solving skills in action. The best part? You don’t need to be a professional engineer to […]
A clap switch circuit is a popular DIY electronics project that lets you control an electronic device by clapping your hands. The circuit uses the sound of a clap as a trigger to turn the device ON or OFF. It finds wide use in home automation, interactive projects, and temporary lighting solutions. In this article, […]
Dual power supply circuit is the backbone of many electronic systems. Various circuits, especially those involving operational amplifiers, analog devices, and certain digital systems, require both positive and negative voltages to operate properly. This is where Dual Power Supply Circuits come into play. They provide symmetrical voltages (like +12V and -12V, +15V and -15V, etc.) […]
With water scarcity becoming a global concern and agriculture demanding optimal water usage, smart irrigation systems have emerged as a sustainable solution. This article presents a Smart IoT-Based Automatic Irrigation System built using an ESP32 microcontroller, soil moisture sensor, water pump, and Blynk IoT platform for real-time monitoring and control. This system automates irrigation by […]
A Voltage Controlled Oscillator (VCO) using 555 timer is an oscillator whose output frequency is directly dependent on the input control voltage. VCOs are widely used in communication systems, tone generators, frequency modulation (FM), and various signal processing applications. One of the simplest and most economical ways to build a VCO is by using the […]