1-System View

UV Sterilizer for Aquarium

T.K. Hareendran - 02/07/17

Ultraviolet (UV) Sterilizers are used to control infections by stopping the spread of microorganisms from one fish to [...]
Firmware Org Chart

Projector Hushbox with the STM32F4 – Firmware

Joshua Bishop - 11/01/16

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

Projector Hushbox with the STM32F4 – Hardware

Joshua Bishop - 10/25/16

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 - 10/13/16

I recently decided to do some research on electric smoke generators and was surprised to learn that ready-made [...]

Automatic Fragrance Dispenser Circuit

T.K. Hareendran - 08/10/16

I am building an automatic fragrance dispenser (AFD) from scratch and, because I am a little crazy, I [...]

Wireless Remote Camera Flash Trigger

T.K. Hareendran - 07/25/16

Here is an efficient and economical circuit for a wireless remote camera flash trigger, useful for capturing scenes [...]
rg-11 rain dome

Optical Rain Sensor RG-11 Review

T.K. Hareendran - 10/02/15

Dreaming about a little device capable of measuring rainfall or closing a skylight when it starts raining? Recently [...]
alteration of the mouse circuitry

Optical Mouse – Learn To Hack

T.K. Hareendran - 06/16/15

In this tutorial, I will show how you can handle the optical sensor inside a cheap optical-mouse for [...]
LMA circuit schematic

Lost Model Alarm for RC Planes

T.K. Hareendran - 12/03/14

Here is an affordable circuit of a tiny, lightweight, and easy to handle lost model alarm (LMA) for [...]
high power ozone generator

High Power Ozone Generator

joribo - 10/29/14

Here is a more powerful ionisator and ozone generator than described in my version-2. It is meant for [...]
ozone generator circuit

Low Power Ozone Generator

joribo - 10/13/14

Generating ozone and negative ions in the air can be done by a corona discharge. For this we [...]
morse code oscillator schematic

Portable Morse Code Practice Oscillator

T.K. Hareendran - 05/16/14

Little circuit of a Morse Code Oscillator is presented here. Excellent for learning and teaching Morse code, this [...]
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