230v led lamp
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Ac-power-line-connections-monitor
A continuous glow signifies that everything is normal; a blinking or extinguished neon bulb indicates a broken earth or ground connection, or interchanged neutral and live wires.
In electronic circuits, a neon bulb is often used as an indicator light to...
dyi setup and debugging guide
This page discusses the differences between assembled Open USB FXS dongle boards and DIY boards. While the assembled boards are fully tested and quality control approved, DIY boards may encounter various issues during assembly. Fortunately, most of these issues can...
LED monitor for 12V Battery
A Very Simple circuit and some Variations. Play with it.
All parts are cheap and should be easily obtained. None are very critical.
The circuit in question is a basic electronic assembly designed for educational purposes and experimentation. It typically consists of...
LED torch using MAX660
This is a simple LED torch circuit based on the MAX660 integrated circuit from MAXIM semiconductors. The MAX660 is a CMOS monolithic voltage converter IC capable of driving three bright white LEDs connected in parallel to output pin 8. The...
Fading LedsCircuit
This circuit operates two LED strips in a pulsing mode, where one LED strip transitions from an off state to gradually lighting up and then dimming, while the other LED strip performs the opposite action. Each strip can consist of...
Power 220V LED Flashing
An AC mains operated single LED flasher circuit is designed using the widely used CMOS timer chip TLC555. The entire circuit is powered directly by the grid supply of 230VAC through a capacitive potential divider and associated components.
This LED flasher...
Mock Flasher LED Circuit
This simple mock flasher LED simulates the indicator of a sophisticated alarm system. It can be placed in doors, gates, and vehicles to confuse intruders.
The mock flasher LED circuit is designed to mimic the flashing behavior of a typical alarm...
led How can I effectively reduce the voltage needed to activate a transistor
A circuit connects the line output (audio output) of a music-playing device to a large strip of approximately 200 LEDs, allowing them to flash in sync with the music. The circuit functions effectively when using a laptop as the audio...
LED Audio VU Meter
This project is also an essential part of the expandable analyser to be published soon or perhaps eventually, and one meter circuit is used for each frequency band. There are many other uses for a simple LED VU meter. They...