LIGHT DIMMER
The 555 timer "light dimmer" schematic circuit is shown in figure 1 below. For the light dimmer to work the 555 timer is configured as a "variable cycle", astab...
LIGHT DIMMER
The 555 timer "light dimmer" schematic circuit is shown in figure 1 below. For the light dimmer to work the 555 timer is configured as a "variable cycle", astab...
Ultra Low Power LCD Indicator
This circuit serves as an ultra-low power replacement for multiple LED on-off indicators. It also has the advantage of being easy to read in full daylight. With...
Ultra Low Power LCD Indicator
This circuit serves as an ultra-low power replacement for multiple LED on-off indicators. It also has the advantage of being easy to read in full daylight. With...
LED Zeppelin game circuit
The name of our game, LED Zeppelin, is a play on words. It comes not from the pop group of the same name but from Graf Von Zeppelin, a German who invented the f...
LED Zeppelin game circuit
The name of our game, LED Zeppelin, is a play on words. It comes not from the pop group of the same name but from Graf Von Zeppelin, a German who invented the f...
LED Dice schematic
This project has two advantages over previous dice circuits. It produces a realistic readout as well as a `slow-down` feature.
These combine to make it one of ...
LED Dice schematic
This project has two advantages over previous dice circuits. It produces a realistic readout as well as a `slow-down` feature.
These combine to make it one of ...
Electronic Night Light
This circuit was submitted by Adam from Canada who is still at school. I have provided the
text. The two transistors are used as a direct coupled switch, Adam...
Electronic Night Light
This circuit was submitted by Adam from Canada who is still at school. I have provided the
text. The two transistors are used as a direct coupled switch, Adam...
Dark-activated LED or Lamp Flasher
This circuit adopts the rather unusual Bowes/White emitter coupled multivibrator circuit. The oscillation frequency is about 1Hz and is set by C1 value. The LED...
Dark-activated LED or Lamp Flasher
This circuit adopts the rather unusual Bowes/White emitter coupled multivibrator circuit. The oscillation frequency is about 1Hz and is set by C1 value. The LED...
Dark-activated 230V Lamp
This device allows one or more lamps to illuminate at sunset and turn off at dawn.
Q1 and Q2 form a trigger device for the SCR, providing short pulses at 100Hz...
Dark-activated 230V Lamp
This device allows one or more lamps to illuminate at sunset and turn off at dawn.
Q1 and Q2 form a trigger device for the SCR, providing short pulses at 100Hz...
Solar LED Mood Light
Power this project from sunlight with a CirKits solar power circuit board kit.
Other LED lamp circuits can be seen at FC`s Solar Circuits, another interesting ...
Solar LED Mood Light
Power this project from sunlight with a CirKits solar power circuit board kit.
Other LED lamp circuits can be seen at FC`s Solar Circuits, another interesting ...
Solar Powered Reading Lamp
The reading lamp consists of a small solar panel, a standard UPS style lead acid battery, and an LED circuit board. The circuit board contains a low power solar...
Solar Powered Reading Lamp
The reading lamp consists of a small solar panel, a standard UPS style lead acid battery, and an LED circuit board. The circuit board contains a low power solar...
Solar Charged LED Utility Light
Tired of always spending money on flashlight batteries only to have them fail just when you need them? Try this simple circuit out. It would make an excellent s...
Solar Charged LED Utility Light
Tired of always spending money on flashlight batteries only to have them fail just when you need them? Try this simple circuit out. It would make an excellent s...