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cordless security alarm

Wireless Cashbox Security Alarm

T.K. Hareendran - 11/12/13

Here is an inexpensive circuit of a wireless cashbox security alarm realized using generally available low-cost components. Why [...]
automatic water tap controller circuit

Automatic Water Tap (Faucet/Valve) Controller

T.K. Hareendran - 11/10/13

As you may well know, automatic control for a water tap can significantly reduce water consumption to some [...]
Door Window Alert

Opened Window or Door Alarm

T.K. Hareendran - 08/30/13

Economical circuit of an electronic alarm, notifies you when your door or window is open, is presented here. [...]
electrical live wire detector circuit schematic

Electrical Live Wire Detector

P. Marian - 05/19/13

This circuit can detect only electrical wires connected to the mains (live wire). It has an LED for [...]
Auto-Fill Valve with Arduino wiring diagram

Arduino Based Part Fill Automatic Valve

T.K. Hareendran - 04/12/13

“Part Fill” Valve? Yes, Part Fill valves are widely used in Rainwater tanks. The valve will open once [...]

RF Based Wireless Remote Control System

T.K. Hareendran - 04/04/13

It is often required to switch electrical appliances from a distance without being a direct line of sight [...]
INDUSTRIAL BATTERY CHARGER BY THYRISTOR

Industrial Battery Charger Project Kit

Edgefx Kits - 03/19/13

The assignment is intended for charging battery(s) by DC from AC supply of power. DC power supplied for [...]
pcb drill speed controller schematic

PCB Drill Speed Controller with 555

T.K. Hareendran - 03/18/13

Described here is a simple, inexpensive and useful circuit for electronics hobbyists. The circuit is nothing but a [...]
lamp life extender project kit

Zero Voltage Switching (ZVS) for Lamp Life Extender

Edgefx Kits - 02/25/13

This lamp life extender project is intended to create an appliance to enhance the existence of luminescent lanterns [...]

SCR Phase Control Dimmer Circuit

Jim Keith - 02/24/13

This SCR phase control works much like the common TRIAC dimmer, but has numerous advantages including increased current [...]
strobe lighting project kit

Strobe Lights Project

Edgefx Kits - 02/24/13

Stroboscopic effects of lights for nightclubs are realized by bringing into play old white Light Emitting Diodes (LEDs) [...]
Power Control for Induction Motor Project Kit

Power Control for Induction Motor

Edgefx Kits - 02/23/13

This induction motor power controller project is intended to manage AC power to a load by bringing into [...]
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