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Home IoT – Voice Controlled Lab Lights with Amazon Alexa and ESP8266

Brent Voltz makes home IoT easy with Amazon Alexa and the ESP8266. In this project, he created voice controlled lab lighting. This project is sure to brighten your day!

Creating an Interleaved PWM Generator With an Arduino

T.K. Hareendran - 08/08/2017

Pulse-width modulation (PWM) is the ground for control in power electronics. The vast majority of semiconductor power devices [...]
Prusa I3A Plus

Prusa I3A Plus Review and Assembly Tips

Enrico Miglino - 06/06/2017

In the past, I tested several 3D printers models in the range for personal use, i.e.the classic desktop [...]
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 carpenter. The project was nothing more than a bathroom washbasin mirror with a bunch of lamps around [...]
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 [...]
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. Fortunately, a DigiSpark Attiny85 development board was lying around on my workbench. The next component needed was [...]
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 [...]
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