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SGL8022W circuit

SGL8022W Touch LED PWM Module – What’s Inside?

Some time ago, while browsing eBay for a simple LED controller to rejuvenate my retro […]
1-System View

UV Sterilizer for Aquarium

T.K. Hareendran - 02/07/2017

Ultraviolet (UV) Sterilizers are used to control infections by stopping the spread of microorganisms from one fish to [...]
2. Circuit Diagram

Simple Delta Wave Generator

T.K. Hareendran - 02/06/2017

A delta wave, also known as delta rhythm, is the normal brainwave in the encephalogram of a person [...]

Inexpensive DIY Gauss Meter Project

T.K. Hareendran - 12/02/2016

Gauss meters are expensive devices and are typically not within reach of the average electronics hobbyist. Presented here [...]
Emulator Circuit

Mobile Phone Battery Emulator

T.K. Hareendran - 12/01/2016

Recently, a mobile phone service technician wanted me to build a battery emulator that would enable him to [...]
schematic basic

Sine Wave Generator Circuit

T.K. Hareendran - 11/30/2016

According to textbooks, a sine wave is a wave whose form resembles a sine curve. Often in power electronics, we need a sine wave generator for some applications; a dc/ac power inverter, for example. Here [...]
Inverter Schematic

Portable Power Inverter Circuit

T.K. Hareendran - 11/29/2016

Recently, my neighbor expressed a deep interest in building a low-power inverter from scratch. This portable power inverter [...]
Firmware Org Chart

Projector Hushbox with the STM32F4 – Firmware

Joshua Bishop - 11/01/2016

By far, the most time-consuming portion of this project was the firmware. I tried to create a system [...]

Wireless LED Bulb

T.K. Hareendran - 10/31/2016

Researchers predict that wireless power will make a significant contribution to energy supplies in the near future. The [...]

Projector Hushbox with the STM32F4 – Hardware

Joshua Bishop - 10/25/2016

In my family, we’ve never had a normal television set, using projectors for our entertainment needs instead. Now, [...]
smoke system for electric aircraft

Desktop Smoke Generator

T.K. Hareendran - 10/13/2016

I recently decided to do some research on electric smoke generators and was surprised to learn that ready-made items are easily available at affordable prices. They are widely used in film and stage productions as [...]
8. lm35_setup

Arduino Datalogger with Memory Card

T.K. Hareendran - 10/04/2016

How do you save data from an Arduino-based device to a memory card? Fortunately, a microSD card and [...]
lipo charger circuit

Compact 2S LiPo Battery Charger

T.K. Hareendran - 09/28/2016

The compact LiPo battery charger introduced here can be used to charge almost all standard 2S LiPo battery [...]
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