simple multi color led
#LED
#multicolor
#RGB
#light control
#simple circuit
#electronics
#DIY
#prototyping
#breadboard
#basic
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3-Way Light Control
This hookup is useful in certain house wiring situations where only two wires are available between switches, rather than the usual three-way setup that requires three wires. SI and S2 are standard three-way switches, while S3, a double-pole double-throw (DPDT)...
light activated led scr
The schematic presented is a circuit for a light-activated LED utilizing an SCR (Silicon Controlled Rectifier). SCRs, which resemble transistors in appearance, operate on different principles compared to transistors. In this circuit, the SCR functions as a switching device. When...
Ring-around-led-flasher
When power is initially applied, two of the LEDs illuminate while the other two remain off until the timing cycle reverses. The LEDs flash in pairs; however, by pressing and holding switch S1 until only one LED is lit, and...
LED Dimmer Lighting
A dimmer for individual LED bulbs. LEDs (light emitting diodes) are very sensitive components; exceeding their rated current or voltage can drastically reduce their lifespan from over 50,000 hours to mere microseconds. LEDs are current-driven, meaning that the intensity of...
led fade in fade out
A small project in the second scene focuses on smoothly fading an LED in and out without using a microcontroller. Some modifications were made, including separating the transistors and changing the quality of the resistors. This is intended to reduce...
Mains Powered White LED and Grand Prix Starting Lights circuit
An array of white LEDs can serve as a small lamp for the living room. LED lamps are readily available, resembling standard halogen lamps, and can be installed in a standard 230-V light fixture. A capacitor is employed to reduce...
High-intensity LED Warning Flasher
This circuit was designed as a warning flasher to alert road users to dangerous situations in the dark. Alternatively, it can act as a bicycle light.
The circuit operates by utilizing a light-emitting diode (LED) as the primary visual alerting component....
Stereo VU Meter
This is a stereo LED level meter. It is the most affordable and effective bar graph display available, utilizing commonly accessible components. The circuit requires only a few LEDs, 22 transistors, some resistors, diodes, and a set of electrolytic capacitors,...
Basic Led circuit driver
A basic LED driver circuit consists of a 5-volt power source, a 2 kΩ potentiometer, and an LED. The LED is forward biased, with the manufacturer specifying a maximum current rating of 20 mA at a diode voltage drop of...