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How to Get Started with a Microwave Radar Motion Sensor

T.K. Hareendran - 08/16/17

Last year, I took a look at some mostly low-cost passive infrared (PIR) motion sensor modules. Then recently, [...]
Prusa I3A Plus

Prusa I3A Plus Review and Assembly Tips

Enrico Miglino - 06/06/17

In the past, I tested several 3D printers models in the range for personal use, i.e.the classic desktop [...]
showerhead light 2

Automatic Showerhead Light

T.K. Hareendran - 04/20/17

I am a big fan of the LV version of the Pololu mini pushbutton power switch (2808) that [...]
2. Circuit Diagram

Simple Delta Wave Generator

T.K. Hareendran - 02/06/17

A delta wave, also known as delta rhythm, is the normal brainwave in the encephalogram of a person [...]

Inexpensive DIY Gauss Meter Project

T.K. Hareendran - 12/02/16

Gauss meters are expensive devices and are typically not within reach of the average electronics hobbyist. Presented here [...]
Emulator Circuit

Mobile Phone Battery Emulator

T.K. Hareendran - 12/01/16

Recently, a mobile phone service technician wanted me to build a battery emulator that would enable him to [...]
schematic basic

Sine Wave Generator Circuit

T.K. Hareendran - 11/30/16

According to textbooks, a sine wave is a wave whose form resembles a sine curve. Often in power [...]
toilet cistern overflow monitor schematic

Retrofit Toilet Cistern Overflow Monitor

T.K. Hareendran - 08/01/16

Toilet cistern overflows not only waste water but increase the risk for slip-and-fall injuries. The retrofit cistern overflow [...]
RSC-1

DIY RCC SMPS Circuits

T.K. Hareendran - 07/08/16

Every non-battery-powered electronic device requires converting offline ac power to some dc voltage for powering electronics. Nowadays, efficient [...]
Camera Remote Control

Layman’s Camera Remote Control

T.K. Hareendran - 05/06/16

It’s sensible to use a remote control when your camera is mounted on a tripod, especially when you [...]
I2C LCD Backpack Primer

Arduino I2C LCD Backpack Introductory Tutorial

T.K. Hareendran - 12/01/15

Assume that you are moving towards a complex microcontroller project bundled with blinkers, beepers, and a display panel. [...]
rc switch circuit diagram

Compact RC Switch Circuit

T.K. Hareendran - 11/24/15

If you are an RC modeller, then this circuit is for you! The compact RC Switch let you [...]
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