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    Welcome to ElectroSchematics.com! We are a comprehensive database of electronic circuits and schematics. My name is ; together with Jim Keith, T.K. Hareendran, D Mohankumar, and three other authors, we provide you with basic tutorials, designs, and new ways to practice your hobby with ease. Browse through our collection of over 1,000 electronics projects covering categories like audio amplifiers, avr tutorials, solar and battery chargers, pcb tutorials, and more. To watch our videos, please subscribe to our YouTube channel by clicking on the red button below.

    Compact Egg Candler Circuit An egg candler is a simple device used for testing incubating eggs to determine if they are viable or not. The device provides a light source and channels that light into the egg so you can determine if the egg is developing into a chick. The egg candler presented here is designed to be handheld but also can be...
    How to Play with Thermocouples Whether you are building a temperature-sensing device or need to bring temperature-sensing capabilities to an existing system, you should familiarize yourself with thermocouples and learn how to devise thermocouple interfaces. A thermocouple is simply a length of two wires made from two dissimilar conductors that are welded together at one end. Basics of Thermocouples Many different types of thermocouples...
    Layman’s Camera Remote Control It’s sensible to use a remote control when your camera is mounted on a tripod, especially when you are using slow shutter speeds. The stability of even a high-quality tripod can be compromised if you touch and jostle the camera while taking a shot. A camera remote control enables a more hands-off approach. An Insight The core of this...
    Selecting Semiconductor Components For Prototype Design Whether you design circuits as a hobby or high-tech computer devices for a living, your biggest concern is finding the best components for your project. Diodes – SCR The simplest solid state device, the diode, serves only one purpose: conducting the flow of electricity in one direction. A Silicon-Controlled Rectifier, or SCR, is a device that supplies power to...
    Filters Tutorial If you work with audio circuits but are not getting the desired results, you may need to add a filter to your project. A device may not work for a number of reasons, including your location and unique circumstances. A filter can sometimes make all the difference by enabling you to tune out strident or harsh peaks in the...
    Webcam Sight Illuminator Circuit Setting up a webcam sight illuminator over your laptop’s webcam will certainly “enlighten” your online conversations. This compact clip-on light improves the quality of webcam photos and videos in low-light situations, and has been designed for placement directly over and around your laptop’s webcam. It operates via a USB port, incorporates a white-light LED, and detects low-light levels automatically....
    Smart Power Supply for Microcontroller Projects A good, reliable and easy to use dc power supply is probably the most important thing for every electronics hobbyists. Since a proper electronically stabilized power supply is crucial for almost all microcontroller-related diy projects, here we are presenting a simple diy project of an easy to build and very affordable power supply for microcontrollers. Circuit Description The design...
    High-band DPD Demodulator with Integrated DSA and RF Switch The IDTF1370 is a digital pre-distortion demodulator (DPD) for power amplifiers linearization in BTS transmitter that utilize the IDT zero-distortion, and glitch-free technology that offers customers an unparalleled high-performance DPD demodulator. It utilizes the technique called pre-distortion, in digital communication it is used to improve the linearity of the transmitter performance by pre-distorting a data to counteract the distortion...
    Power-on Reminder with LED Lamp Many a times equipment at workstations remains switched on unnoticed. In this situation, these may get damaged due to overheating. Here is an add-on device for the workbench power supply that reminds you of the power-on status of the connected devices every hour or so by sounding a buzzer for around 20 seconds. It also has a white LED...
    F1200 Low-noise Digital IF VGA with FlatNoise The F1200 of an IDT is a digitally controlled intermediate frequency differential variable gain amplifier that adjusts the gain either dynamically or as a one-time channel gain setting. The device has extremely low noise figure over the entire gain control range. It is packaged in compact 5×5 Thin QFNs with 200 ohm differential input and output impedances for ease...
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    tools required for electronics projects: an oscilloscope, protoboard, variable power supply You will discover that every electronics project has at least one schematic along with easy to read explanation on how it works. Also you can easily read the IC's datasheets using the links that are positioned at the bottom of the article. You can send us pictures with your finished and working ckt and we will publish them in the article giving you the credits.