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VBLED_1

Arduino Visual Basic Integration

Usually, I use the Serial Monitor of the Arduino IDE to communicate with the Arduino […]
blackcout alert circuit

Intelligent Blackout Notifier

T.K. Hareendran - 08/27/2016

The intelligent blackout notifier is a mains supply monitoring device that will trigger a distinct alarm when the [...]
circuit

Automatic Fragrance Dispenser Circuit

T.K. Hareendran - 08/10/2016

I am building an automatic fragrance dispenser (AFD) from scratch and, because I am a little crazy, I [...]
toilet cistern overflow monitor schematic

Retrofit Toilet Cistern Overflow Monitor

T.K. Hareendran - 08/01/2016

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

Wireless Remote Camera Flash Trigger

T.K. Hareendran - 07/25/2016

Here is an efficient and economical circuit for a wireless remote camera flash trigger, useful for capturing scenes [...]
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 of water and continues to operate — an issue known as dry running — it can become [...]
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 [...]
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 about one, we should take steps to help prevent as much damage as possible, including dangerous substances [...]
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 [...]
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