T.K. Hareendran, Author at Codrey Electronics

Photoelectric Light Sensor

January 24, 2020

It’s rather ridiculous to think how cheap you can get light sensor modules today. Sure...

January 22, 2020

I made a little purchase in the midway of December, and there’s a nice packet waiting for me...

January 21, 2020

Governing the speed of a motor is very important in many situations especially in mechatronics. By...

January 20, 2020

I’ve a few mini pocket weight scales. What I love about the cheap device is that it uses a...

January 16, 2020

A Gas sensor serves to detect and measure the concentration of gas in the environment. Nowadays you...

December 30, 2019

Often you’ll need a simple pulse width modulation generator circuit to test or run small dc...

December 23, 2019

Simple flame supervisor is nothing but a little flame status monitor. The theme of this play is to...

December 18, 2019

Very recently I wanted a couple of Hall-Effect Switches again for some random experiments, hence...

December 16, 2019

Morse code almost not need an explanation! Anyway simply note that it’s a telegraph code in...

December 12, 2019

If you’re an active electronics hobbyist or maker, sometimes you may get a request from your...