desk lamp circuit diagram for camping circuit

led interfacing with spartan 3 primer circuit

The Spartan-3 board features eight LEDs connected to FPGA I/O pins, with the cathode of each LED connected to ground through a 330-ohm resistor. To illuminate a specific LED, the corresponding FPGA control signal must be driven to a high...

Dancing LED's circuit

Here is a simple circuit which can be used for decoration purposes or as an indicator. Flashing or dancing speed of LEDs can be adjusted and various dancing patterns of lights can be formed. The circuit consists of two astable...

puff to off circuit

This is a circuit diagram of a simple circuit in which the LED can be activated only by a gust of air. A condenser microphone (M1) is used to detect breath. When the S1 button is pressed, transistors Q2 and...

LED Knight RiderCircuit With 4017 and 555 IC

The following circuit illustrates an LED Knight Rider Circuit Diagram. This circuit is based on the 4017 and 555 integrated circuits. Features include the Knight Rider effect with four LEDs. The LED Knight Rider circuit is designed to create a visual...

10 LED VU meter with LM3915

Supply voltage: 12 V. Supply current: 10 mA in stand-by, max. 80 mA. Input voltage: min. 20 mV rms. Indication range: 30 dB. LED currents: 7 mA. Ref. voltage of IC2: 5 V More: R1 - trimmer 100 k mini...

Equipment on reminder

Due to the low duty cycle of the flashing LED, the average current drain is 1 mA or less. The circuit described involves a flashing LED that operates with a low duty cycle, resulting in a significantly reduced average current draw....

Regulated 24 Watt Broad Spectrum LED

This project involves constructing an energy-efficient broad spectrum LED lamp system designed for indoor reflective room lighting. The lamp provides a broad color spectrum that closely resembles natural sunlight compared to fluorescent bulbs and white-only LEDs. The light output is...

7Segment Common LED UV Exposure Box

7-Segment Common LED UV Exposure Box Circuit Diagram. Features: Utilizes Stan Ocker's circuit design, employing a PIC16F84 microcontroller to count and display the time. The 7-Segment Common LED UV Exposure Box Circuit is designed for applications requiring precise timing and display...

how to build a simple led light chaser circuit

This article offers a circuit diagram and a discussion on CMOS logic and IC layout for creating a set of attention-getting LED running lights. It details a simple sequential LED flasher or light chaser that can be built, including the...