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lamp flasher circuit – Circuit Schematic
lamp flasher circuit
This is a simple two transistor lamp flasher circuit, which can be used to flash 6 volt lamp. The circuit is so small and can be easily fitted in a small box. T...
dark detector led ldr – Circuit Schematic
dark detector led ldr
Here is a project of a simple dark detector LED circuit. In the previous topic we have discussed a light activated LED circuit. By simply changing the positions...
automatic solar garden light circuit – Circuit Schematic
automatic solar garden light circuit
Schematic of an automatic solar garden light circuit with 10 super bright white LEDs which will automatically activate at night. .....
automatic night lamp 230v – Circuit Schematic
automatic night lamp 230v
Here is a project of a simple automatic night lamp circuit or dark activated 230V lamp circuit, which will automatically activate an AC lamp / bulb when sun set...
12v solar led night activated lamp – Circuit Schematic
12v solar led night activated lamp
Figure shows a great project / schematic of a 12V solar LED night activated lamp circuit. This is a versatile project and can be used for variety of purposes. F...
12v led lamp circuit – Circuit Schematic
12v led lamp circuit
A very useful project of a 12V LED Lamp circuit. This led circuit is very simple consist of 5 resistors and 15 super bright white 5mm LEDs which are easily avai...
LEDs or lamps sequencer circuit – Circuit Schematic
LEDs or lamps sequencer circuit
A voltage ranging from 6 V to 15 V is supplied if only one LED per module is used. The increase in the number of LEDs also corresponds to the increase of voltag...
72 led clock – Circuit Schematic
72 led clock
In the circuit, 60 individual LEDs are used to indicate the minutes of a clock and 12 LEDs indicate hours. The power supply and time base circuitry is the same ...
touch activated light – Circuit Schematic
touch activated light
The circuits light a 20 watt lamp when the contacts are touched and the skin resistance is about 2 Megs or less. The circuit on the left uses a power MOSFET whi...
varying brightness ac lamp – Circuit Schematic
varying brightness ac lamp
In this circuit, an SCR is used to slowly vary the intensity of a 120 volt light bulb by controlling the time that the AC line voltage is applied to the lamp du...
bicycle back safety light circuit schematic – Circuit Schematic
bicycle back safety light circuit schematic
This circuit has been designed to provide a clearly visible light, formed by 13 high efficiency flashing LEDs arranged in a pseudo-rotating order. Due to low vo...
12 stage neon sequencer ne 2 ne 51 – Circuit Schematic
12 stage neon sequencer ne 2 ne 51
This circuit is similar to the LED clock using 12 neon indicator lamps instead of LEDs. It operates from 2 high capacity ni-cad cells (2.5 volts) which keep it ...
1 5 volt led flashers – Circuit Schematic
1 5 volt led flashers
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 t...
18 stage led sequencer – Circuit Schematic
18 stage led sequencer
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...
16 stage bi directional led sequencer – Circuit Schematic
16 stage bi directional led sequencer
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...
12v dimmer – Circuit Schematic
12v dimmer
A dimmer is quite unusual in a caravan or on a boat. Here we describe how you can make one. So if you would like to be able to adjust the mood when you re enter...
sunrise lamp – Circuit Schematic
sunrise lamp
In this circuit, a 120VAC lamp is slowly illuminated over a approximate 20 minute period. The bridge rectifier supplies 120 DC to the MOSFET and 60 watt lamp. A...
1 5 hour lamp fader sunset lamp – Circuit Schematic
1 5 hour lamp fader sunset lamp
The sunset lamp comes on at full brightness and then slowly fades out over 1.5 hours time and stays off until power is recycled.....
automatic 12 volt lamp fader – Circuit Schematic
automatic 12 volt lamp fader
This circuit is similar to the ""Fading Red Eyes"" circuit (in the LED section) used to fade a pair of red LEDs. In this version, the lamps are faded by varying...
fading red eyes – Circuit Schematic
fading red eyes
This circuit is used to slowly illuminate and fade a pair of red LEDs (light emitting diodes). The fading LEDs could be installed as `eyes` in a small pumpkin o...