Advertisement
fading red eyes – Circuit Schematic
fading red eyes
...
ultra bright led lamp – Circuit Schematic
ultra bright led lamp
This ultra-bright white LED lamp works on 230V AC with minimal power consumption. It can be used to illuminate VU meters, SWR meters, etc. Ultra-bright LEDs ava...
line powered white leds – Circuit Schematic
line powered white leds
The LED circuit below is an example of using 25 white LEDs in series connected to the 120VAC line. It can be modified for more or less LEDs by adjusting the res...
ac line powered leds – Circuit Schematic
ac line powered leds
The circuit below illustrates powering a LED (or two) from the 120 volt AC line using a capacitor to drop the voltage and a small resistor to limit the inrush c...
game show indicator lights whos first – Circuit Schematic
game show indicator lights whos first
The circuit turns on a light corresponding to the first of several buttons pressed in a ""Who`s First"" game. Three stages are shown but the circuit can be exte...
led traffic lights – Circuit Schematic
led traffic lights
The LED traffic Light circuit controls 6 LEDs (red, yellow and green) for both north/south directions and east/west directions. The timing sequence is generated...
NightRydazz – Circuit Schematic
NightRydazz
The device will be placed on the back wheel of the bicycle. Since the LED`s and other components run off of a lithium-ion battery, it stands independently, atta...
RS Strobe – Circuit Schematic
RS Strobe
...
Light detector switch – Circuit Schematic
Light detector switch
Anyone know how I could make an led come on when it gets dark automatically?I made a version with a relay and photoresistor that worked but then I was think won...
30 LEDs off AC mains – Circuit Schematic
30 LEDs off AC mains
My father-in-law wants to do something unique for his outdoor Christmas decorations and I told him Id help. He wants an LED-illuminated star to hang on his hous...
Standlight circuits – Circuit Schematic
Standlight circuits
Didn`t measure my resisitors exactly and since they are +/-5% and Vref has a range of 1. 2 to 1. 3 volts you can easily end up over 6 volts. Here is a worst cas...
Random oscillator circuit for high power LEDs – Circuit Schematic
Random oscillator circuit for high power LEDs
I`m looking for a circuit (the simpler and cheaper, the better) that can drive three or more LEDs at 200-350mA each, randomly flashing/strobing them at 5-20Hz. ...
knight Rider 2 – Circuit Schematic
knight Rider 2
This project describes a light effect that is similar to the one of the car in the TV series `Knight Rider`.....
knight Rider – Circuit Schematic
knight Rider
I have created a light computer that generates an effect like the scanner of the car KITT in the TV series Knight Rider. You can see a visualization of the effe...
light operated switch 2 – Circuit Schematic
light operated switch 2
...
light dependent blinker using ldr and cd4093 – Circuit Schematic
light dependent blinker using ldr and cd4093
Here`s a simple experiment with LDR and CD4093. This is just a modification of a previous project dark sensor using 2 transistors . In this project, the CD409...
build a scrolling message display circuit – Circuit Schematic
build a scrolling message display circuit
...
make a useful breakdown beacon police lights – Circuit Schematic
make a useful breakdown beacon police lights
...
make these simple light fader circuits – Circuit Schematic
make these simple light fader circuits
The light fader circuits presented here have a common idea of producing a “cool” switch ON and switch OFF effect on the connected lamps, i.e. every ...
make a plug in emergency light with a li ion battery – Circuit Schematic
make a plug in emergency light with a li ion battery
...