T.K. Hareendran, Author at Codrey Electronics

Fall Saver Infrared Bedside Alarm

July 31, 2020

I have no idea if you’re the type of maker who browses e-commerce sites looking for cheap...

July 21, 2020

Love the ancient art of paper folding – Origami?. Traditional origami consists of folding a single...

July 16, 2020

This article describes how you can build an easy to make automatic, touch-free, hand sanitizer...

June 30, 2020

Ever wondered how to build a multimode task light, and how to use a single button switch to change...

June 27, 2020

I’ve been asked if I could post a little primer on key components widely used in guitar...

June 20, 2020

Presented here is the do it yourself electronics project of a simple and inexpensive automatic...

June 17, 2020

In this post, you can see a tiny, yet quite useful, microcontroller-based USB key/Foot Pedal for...

June 15, 2020

This article comes with the construction points of a do it yourself bicycle headlamp (white) and...

June 12, 2020

This time I’d like to share my funny thoughts on the build of a very ‘hobbyist’...

June 10, 2020

This is a quick primer on analog signal processing, which lets you smooth out the noise from analog...