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Light flasher circuit diagrams

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16 Stage Bi-Directional LED Sequencer
16 Stage Bi-Directional LED Sequencer
January 18, 2011

The bi-directional sequencer uses a 4 bit binary up/down counter (CD4516) and two "1 of 8 line decoders" (74HC138 or 74HCT138) to generate the popular "Night Rider" display. A Schmitt Trigger oscillator provides the clock... [more]

10 Channel LED Sequencer
10 Channel LED Sequencer
January 18, 2011

10 Channel LED Sequencer [more]

18 Stage LED Sequencer
18 Stage LED Sequencer
January 18, 2011

When power is applied, the 15K resistor and 10uF cap at pin 15 will reset the counters to the zero count where pin 3 is at +12 and all other outputs are at zero. The... [more]

Two Transistor LED Flasher
Two Transistor LED Flasher
January 18, 2011

Two Transistor LED Flasher [more]

1.5 Volt LED Flashers
1.5 Volt LED Flashers
January 18, 2011

The LED flasher circuits below operate on a single 1.5 volt battery. The circuit on the upper right uses the popular LM3909 LED flasher IC and requires only a timing capacitor and LED. [more]

120VAC Lamp Chaser
120VAC Lamp Chaser
December 28, 2010

This circuit is basically the same as the 10 channel LED sequencer with the addition of solid state relays to control the AC lamps. The relay shown in the diagram is a Radio Shack 3... [more]

Flashing Neons (NE-2 / NE-51)
Flashing Neons (NE-2 / NE-51)
December 27, 2010

In this circuit, one, two or three neon indicator bulbs can be made to flash in sequence at rates determined by the R and C values. In the single stage circuit, using one lamp, the... [more]

220 Volts Flashing Lamps
220 Volts Flashing Lamps
December 11, 2010

This circuit is intended as a reliable replacement to thermally-activated switches used for Christmas tree lamp-flashing. [more]

Nite Rider Lights
Nite Rider Lights
November 30, 2010

Nite Rider Lights [more]

Fading LEDs
Fading LEDs
November 19, 2010

This circuit operates two LED strips in pulsing mode, i.e. one LED strip goes from off state, lights up gradually, then dims gradually, etc. while the other LED strip do the contrary. [more]



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