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Prusa I3A Plus

Prusa I3A Plus Review and Assembly Tips

In the past, I tested several 3D printers models in the range for personal use, […]
rf remote switch inside

RF Remote Switch Teardown

T.K. Hareendran - 06/03/2017

Recently, I picked up a cheap, two-channel RF remote control switch from eBay, and once I completed a [...]
SGL8022W circuit

SGL8022W Touch LED PWM Module – What’s Inside?

T.K. Hareendran - 05/29/2017

Some time ago, while browsing eBay for a simple LED controller to rejuvenate my retro bedroom lamp, I [...]
2 - schematic

Elegant Bathroom Mirror Lights with Motion Detector

T.K. Hareendran - 05/19/2017

The inspiration for this project came from the artwork shown here, prepared by my neighbor who is a [...]
littlewire schematic

Learn To Play With Little Wire

T.K. Hareendran - 05/18/2017

Since its inception, I’ve been a big fan of Digispark — the minuscule development board from Digistump (http://digistump.com). [...]
showerhead light 2

Automatic Showerhead Light

T.K. Hareendran - 04/20/2017

I am a big fan of the LV version of the Pololu mini pushbutton power switch (2808) that has now been available for over a year. This module is, in fact, an electronic power switch [...]
XLPSM-2

XL4015 Power Supply Module – Secret Talks

T.K. Hareendran - 04/17/2017

This is a succinct account of my experience with the cheap electronic power supply module from China, "DC-DC [...]
2-protosample

Unique Bedroom Lamp: The LED Driver

T.K. Hareendran - 04/14/2017

Power LEDs are becoming more and more commonplace as bedroom light sources for a number of reasons. The [...]
digitimer 2

Matchbox-Sized Digital Timer

T.K. Hareendran - 04/12/2017

For one of my hobby projects, I needed to add a small countdown timer at an affordable cost. [...]
1-NS73M Module

Build Your Own Digital FM Radio Transmitter with Arduino

T.K. Hareendran - 04/10/2017

I recently searched for a digital FM transmitter kit, but most of the ones that I found online [...]
dpot 1

Learn To Use Digital Potentiometers

T.K. Hareendran - 04/09/2017

A resistor is an electrical device that resists the flow of electrical current. In the digital era, we can find a variety of “digital resistors” for our everyday applications. This article is about digital potentiometers. [...]
nmcu-p6

The NodeMCU (IoT) Guide

T.K. Hareendran - 04/03/2017

The NodeMCU development board is a powerful solution to program microcontrollers and be part of the Internet of [...]
CMic 2 schematic

Simple Contact Microphone

T.K. Hareendran - 04/02/2017

Unlike other microphones, a contact microphone makes you look at the world in a different way. At the [...]