By T.K. Hareendran

International Electronic Design Freelancer • Technical Author • Hardware βeta Tester • Product Reviewer
Articles Written 451

LED Throwies & Build Ideas

Here’s a project for fun – Magnetic LED Throwies! LED Throwies were invented in 2006 by the Grafitti Research Lab in New York City to use as non-destructive graffiti. Build one (or several) yourself right […]

Raspberry Pi Pico ADC & Quick Experiments

A few months ago, I read about some strange issues with Raspberry Pi Pico’s ADC. According to those stories,  Raspberry Pi has confirmed its investigation of reports of a design flaw in the ADC (analog […]

Pro Mini Pull-Pin Alarm

Here you can find the project details of a simple and low-cost pull-pin security alarm. While travelling, rig the alarm unit to your luggage using the alarm security cable. If so, when somebody tries remove […]

Mod Your Goodknight Gold Flash

I’m sure there’re a lot of electronic gadgets in your house that can be recycled. The good news is most of them can be used again or for another purpose. So, don’t just throw those […]

20mm LDR & Raspberry Pi Pico – Quick Guide

In this tutorial, we will learn how to interface a big photoresistor with Raspberry Pi Pico. Since the Raspberry Pi Pico microcontroller provides analog ports, we can easily do a number of projects using common […]