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bird bath fountain circuit

Bird Bath Fountain Monitor

T.K. Hareendran - 11/16/13

A bird bath fountain (a small shallow pond-created with a water-filled basin- in which birds may bath and [...]
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 [...]
aqua alarm circuit

Water Alarm Circuit

T.K. Hareendran - 11/04/13

Here is another interesting hobby circuit built around the popular and inexpensive 555 IC. It is nothing but [...]
kojak siren circuit

Kojak Siren

P. Marian - 10/28/13

Here is a very simple Kojak siren that is built with two 555 timer ICs and has 2 [...]
long duration timer circuit

Long Duration Timer

P. Marian - 07/31/13

In order to create a long duration timer the 556 IC teamed up with a binary divider can [...]
555 Ignition Coil Driver Schematic

555 Ignition Coil Driver

Jim Keith - 06/21/13

This ignition coil driver is a HOT one! From my recollection, it delivers a nastier spark than the [...]
Extended Period 555 On Pulse Timer Schematic

Extended Period 555 On-Pulse Timer

Jim Keith - 06/07/13

Long and longer timeout periods are frequent goals for the ubiquitous 555 timer. Generally, this is accomplished (albeit [...]
555 Fast Reset Circuit

555 Fast Reset Timer

Jim Keith - 05/17/13

A common problem with on-delay timers is the timing capacitor reset. Typical timers (555 included) rely upon both [...]
ADLS - Fig 2

Adaptive Lighting System for Automobiles

T.K. Hareendran - 04/24/13

When a vehicle is driven on the highway at night, it is required that light beam should be [...]

Dim 12V Light Bulb with 555 IC

P. Marian - 04/20/13

This light dimmer is used to dim the intensity of 12V light bulbs using the well-known 555 timer [...]

One-Shot Timer for Energy Saving Lighting

P. Marian - 04/10/13

Faced with the situation to control the time that the light is turned on, engineer Radu Preda from [...]
momentary switch circuit schematic

Momentary Switch with 555

andre72 - 03/22/13

Based on NE555 this circuit turns on and off the IC output by a momentary switch. In other [...]
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