X
blackcout alert circuit

Intelligent Blackout Notifier

The intelligent blackout notifier is a mains supply monitoring device that will trigger a distinct […]
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 [...]
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 necessary with non-electrified wires. A typical live fence installation has a long wire or wires starting from [...]
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 [...]
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 it. It transmits a continuous or periodic radio signal with limited information content — for example, its [...]
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 [...]
  Search 4 million + Products
Browse Products