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Mouse Encoder Hack

I want to write about something a little different this time. I removed the mechanical […]

Aircraft LED Strobe

T.K. Hareendran - 10/21/2020

    Recently I was able to build a version of a tiny microcontroller-based LED strobe light for [...]

Arduino Ethernet

T.K. Hareendran - 10/17/2020

A while ago I was contacted by Oliver Rieder from Eltima (https://www.eltima.com) about getting involved with their wonderful [...]

Laptop Battery Secrets – Part 1

T.K. Hareendran - 10/09/2020

    What can be learned from analyzing a discarded laptop battery?     At first it seemed [...]

Musical Enuresis Alarm

T.K. Hareendran - 09/22/2020

I finally got around to building another cheap enuresis (bedwetting) alarm with the help of a couple of [...]

Arduino LED Fader

T.K. Hareendran - 09/19/2020

    I have spent at least an hour almost every day since the 80’s advancing my knowledge in electronics. Recently I brushed up my knowledge on LED fading secrets and attained something pleasant. Now, [...]

Workbench Li-ion Battery Charger

T.K. Hareendran - 09/12/2020

A few weeks ago, I started collecting defunct laptop batteries, particularly the modern smart battery packs. These battery [...]

LED Photocell and Arduino Magic

T.K. Hareendran - 09/03/2020

A Photocell is a transducer used to detect and measure light and other radiations. The principal aim of [...]

Arduino Sound Machine

T.K. Hareendran - 08/29/2020

I am still receiving many requests to post an Arduino Sound Machine project. I think now is the [...]

Small Tachometer

T.K. Hareendran - 08/21/2020

  This Arduino based little digital tachometer was originally created for counting the speed of turntables and fidget [...]

Simple Stir Plate

T.K. Hareendran - 08/12/2020

If you ask a seasoned brewer for advice on improving your beer, one of the key things he/she is most likely to say is to make a yeast starter. An easy way to improve your [...]

Keep Space Alert

T.K. Hareendran - 08/04/2020

It is essential in these days to maintain distance from others. However, it is not that easy to [...]

Solid-state Wigwag Controller – First light

T.K. Hareendran - 07/21/2020

A few weeks ago, while doing a random Google search, the search engine took me to the universe [...]
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