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CFT-1

Wireless Remote Camera Flash Trigger

Here is an efficient and economical circuit for a wireless remote camera flash trigger, useful […]
water pump guard schematic

Air Cooler Water Pump Guard

T.K. Hareendran - 07/17/2016

Compact, submersible water pumps are mostly used on air coolers, aquariums, and fountains. If the pump runs out [...]
live fence tester

Cordless Live Fence Tester

T.K. Hareendran - 07/11/2016

Electrified fencing is usually used to control animals with smaller and cheaper fence constructions than would otherwise be [...]
RSC-1

DIY RCC SMPS Circuits

T.K. Hareendran - 07/08/2016

Every non-battery-powered electronic device requires converting offline ac power to some dc voltage for powering electronics. Nowadays, efficient [...]
Solar Window Charger Schematic

Solar Window Charger Circuit

T.K. Hareendran - 06/30/2016

Solar window chargers have several advantages when compared with other charger types. You can stick this DIY solar [...]
bbc microbit front

BBC micro:bit product review

Enrico Miglino - 06/16/2016

While almost all of the electronic distributors, hobbyist sites, and online electronic shops have the BBC micro:bit available for pre-order (officially available starting next July), thanks to element14, we had the opportunity to test, play [...]
555 flood alarm

Basement Flood Alarm Circuit

T.K. Hareendran - 06/11/2016

Even though floods don't always rate high on our list of concerns, if we get an early warning [...]
555 radio beacon

Build Your Own Radio Beacons

T.K. Hareendran - 05/30/2016

A radio beacon is a wireless device that marks a fixed location and allows direction-finding equipment to locate [...]
good bad egg

Compact Egg Candler Circuit

T.K. Hareendran - 05/19/2016

An egg candler is a simple device used for testing incubating eggs to determine if they are viable [...]
F1

How to Play with Thermocouples

T.K. Hareendran - 05/10/2016

Whether you are building a temperature-sensing device or need to bring temperature-sensing capabilities to an existing system, you [...]
Camera Remote Control

Layman’s Camera Remote Control

T.K. Hareendran - 05/06/2016

It’s sensible to use a remote control when your camera is mounted on a tripod, especially when you are using slow shutter speeds. The stability of even a high-quality tripod can be compromised if you [...]
diodes scr

Selecting Semiconductor Components For Prototype Design

Terence Thomas - 04/29/2016

Whether you design circuits as a hobby or high-tech computer devices for a living, your biggest concern is [...]
resonant filter

Filters Tutorial

Terence Thomas - 04/24/2016

If you work with audio circuits but are not getting the desired results, you may need to add [...]
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