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Build Your Own Smart Bike Battery Gauge

Don't get stranded due to a low battery. This simple, but smart battery gauge can easily add needed functionality to an electric bike or electric vehicle

DIY Bosch BMP280 Pressure Sensor Project Primer

T.K. Hareendran - 09/06/2017

Nowadays, numerous electronic sensor modules are available on the market that can be combined with inexpensive microcontroller boards [...]

The Arduino FM Radio Build

T.K. Hareendran - 08/29/2017

What do you pick when you want to make something with a nostalgic touch? A radio, of course! [...]

Changing of the Guard

Adam Carlson - 08/22/2017

I want to take a moment to introduce myself, but before I do, I need to thank Marian [...]

How to Get Started with a Microwave Radar Motion Sensor

T.K. Hareendran - 08/16/2017

Last year, I took a look at some mostly low-cost passive infrared (PIR) motion sensor modules. Then recently, [...]

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 in power electronic circuits are controlled by pulse-width modulation signals of various forms. The fast rising and [...]
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 [...]
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). I’ve already prototyped a couple of designs based on Digispark, turning all of them into useful little [...]
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 [...]
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