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  • Dancing light.

    2014-12-16 23:26:56115

    Description. Here is a simple dancing light circuit based on NE555 (IC1) CD4017 (IC2) . The IC1 is wired as an astable multivibrator to provide the clo...

  • LED Alarm Simulator circuit

    2014-12-16 23:19:0288

    This circuit simulates an alarm to discourage thieves and it is originally designed to be used on bicycles but can be used for cars too. It blinks a LE...

  • Automatic Street Light Controller Circuit

    2014-12-16 23:10:51362

    This circuit is an automatic street light controller. Sensors used to detect changes in light is LDR (Light dependent resistor), the working principle ...

  • Ac Circuit Led Power Indicator

    2014-12-16 22:42:20175

    Many electronic circuits need an indication that they are under power; for most ac circuits, a neon lamp is the device of choice. A bidirectional trico...

  • Direct Coupled Discrete Astable Multivibrator (2N3904)

    2014-12-16 22:42:10163

    This article describes the Direct Coupled Discrete Astable Multivibrator (2N3904). The content is very simple, very helpful. Components in this article...

  • Black Light CIRCUIT (1N4149)

    2014-12-16 22:15:20173

    This article describes the Black Light CIRCUIT (1N4149). The content is very simple, very helpful. Components in this article can help you understand b...

  • 220V AC Powered White Led Lamp

    2014-12-16 21:50:511842

    This is the simple version of a white LED lamp that can be directly powered from mains. It can give ample light even for reading purpose. Capacitor CX ...

  • LED Bike Light Circuit(BD911)

    2014-12-16 21:26:00339

    This article briefly describes the LED Bike Light Circuit (BD911). This principle is easy to understand, but also very practical. Depth understanding o...

  • Tape Recorder By Telephone Controlled

    2014-12-16 21:24:0672

    A circuit for energizing and de-energizing a relay to start and stop a tape recorder receiving an endless tape loop provided with an electrically condu...

  • LED Flasher with SCR and UJT

    2014-12-16 21:20:34640

    This circuit systematically main work from Oscillator Circuit. It is use UJT. The Q1 will give the period of time of pulse for trigger. The work of SCR...

  • 60 LED clock circuit

    2014-12-16 20:47:32432

    This article shows that the 60 LED clock circuit. To better grasp this principle, you can combine text understandable that circuit. For a more thorough...

  • How to build High-intensity LED Warning Flasher

    2014-12-16 20:27:4581

    Circuit diagram: Description This circuit was designed as a warning flasher to alert road users to dangerous situations in the dark. Alternatively, it ...

  • Clap Controlled Electronic Switch by 555 Timer and 4013 D Fl

    2014-12-16 20:20:55233

    Figure 1 This is a 32 channel infrared remote controller circuit fundamentally includes key pad, decoder, transducer stage, an output and a battery. Ci...

  • 20 w triac dimmable led driver using LT3799 driver

    2014-12-16 20:16:2092

    Led driver circuits A very simple triac dimmable led driver electronic circuit can be designed using the LT3799 isolated flyback controller with power ...

  • LM3403 Voltage Controlled Oscillator Circuit and Datasheet

    2014-12-16 20:03:28336

    This LM3403 op amp device can be operated from a single power supply or dual power supplies over a wide range of voltages, according to the datasheet. ...

  • Big 7-segment LED display board with SPI interface(1N4001)

    2014-12-16 19:44:45111

    This article describes the Big 7-segment LED display board with SPI interface (1N4001). The content is very simple, very practical. The components of t...

  • LED neon lamp Telephone blinker circuit

    2014-12-16 19:26:4482

    A neon lamp (also neon glow lamp) is a miniature gas discharge lamp that typically contains neon gas at a low pressure in a glass capsule. Neon lightin...

  • Tail/Brake Light Signal Cluster (1N5819)

    2014-12-16 19:23:2070

    Constant current driven LED cluster Circuit diagram: Parts: R1,R5___________10K 1/4W ResistorsR2______________33R 1/4W Resistor (See Notes)R3,R4_______...

  • Create multicolored LEDs (BAT43)

    2014-12-16 18:57:1586

    This article describes the Create multicolored LEDs (BAT43). The content is very simple, very helpful. Components in this article can help you understa...

  • Light-sensitive-audio-oscillator

    2014-12-16 18:22:2188

    This circuit`s frequency of oscillation increases directly with light intensity. The greater the light intensity, the higher the frequency of the oscil...

  • Precision Light-Activated Alarm Circuit

    2014-12-16 18:16:1875

    The light-sensitive CDS cell R8 configured in a bridge circuit with IC1 as a comparator causes ICl`s output to go high when light strikes the CDS cell ...

  • Sound Operated Relay, Control Your Disco Light Automatically

    2014-12-16 18:13:2994

    This circuit is not a voice operated switch (VOX) because this circuit is too dumb to differentiate between musical sound or human voice. This is rathe...

  • Unbelievable Dynamic Tiled Display Puzzlemation

    2014-12-16 17:40:3570

    You are too bored and cannot get any good thing to do? Why don't you just sweep all of the boredom away by creating a creative and cool ‘Puzzlemation...

  • LED driven tail/brake Light Cluster (1N5819)

    2014-12-16 17:12:5279

    This article describes the LED driven tail / brake Light Cluster (1N5819). The content is very simple, very helpful. Components in this article can hel...

  • Pulsing Third Brake Light

    2014-12-16 17:05:2793

    Circuit dijagram Parts IC1,IC2 = 555 Timer, RS #276-1723 SCR1 = NTE/ECG5402, RS #276-1067, EC103A, MCR104, etc. Q1 = NTE/ECG197, SK3083, TIP125, or equ...

  • Remote Controlled Switcher

    2014-12-16 16:43:3181

    A remote control is a component of an electic device, most commonly a televison set, DVD player and home theater systems originally used for operating ...

  • Temperature controlled ( LM324A)

    2014-12-16 15:53:3084

    This article describes the Temperature controlled (LM324A). The content is very simple, very helpful. Components in this article can help you understan...

  • Two Transistors Single Cell Battery LED Driver

    2014-12-16 15:49:59115

    To operate, LED needs more than 1.5V voltage level. If you want to operate a LED with a single cell battery, you must boost the voltage to enable power...

  • A light / dark detector circuit

    2014-12-16 13:51:2487

    This article describes is a light / dark detector circuit. This circuit is not new, but it proved so useful, simple and cheap, it is worth building. Th...

  • How to build Dancing LEDs

    2014-12-16 13:44:4890

    A LED sequencer, following the rhythm of music or speech 9V Battery-operated portable unit Circuit diagram Parts: R1 10K 1/4W ResistorR2,R3 47K 1/4W Re...

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