Rear light after glow circuit

Utilize small blinking LEDs to simulate fireflies. This project requires some electronics skills, but the outcome is visually impressive. LEDs, or Light Emitting Diodes, are compact devices that emit strong light, commonly found in electronic devices such as TVs and...

LED CHASER Sequencer

All LED negatives are connected to the "COM" pad, then through a 220 Ohm resistor to ground. There is no need for additional current limiting resistors, even with supply voltages up to 16 volts. The described circuit employs a simple yet...

Nite Rider LED Lights

IC4, C1, R1 and R2 are used for the clock pulse which is fed to both the counters IC2 and IC3 Pin 14. IC1 is a Flip Flop and is used as a switch to enable either IC2 or IC3...

VU Meter 3

A very simple circuit for indicating levels, utilizing 10 LEDs. The circuit employs a precision half-wave rectification around the IC2, with a gain of one. The switch S1 allows for the selection of which LED to indicate. The input level...

LED dimmer circuit

Typical segment display LEDs consume around 25 mA for each segment and should be limited to this current with resistors. For a six-digit display to be current limited, at least 42 series resistors are needed. The brightness of the LEDs...

putting a led instead of an incandescent bulb on my bike

A few days ago, the rear light burned out. While it is not critical, the front light is essential for nighttime visibility. The reflective red plastic at the back provides some safety, so there is no immediate concern. Nonetheless, a...

Ice warning and lights reminder

This device informs a driver whether their lights should be activated and warns them if the outside temperature approaches zero degrees Celsius by illuminating an LED and sounding a buzzer. The sensitivity can be adjusted using VR1, and the light-dependent...

Schematics High Power LED mood Lamp PCB

This page introduces an engaging project designed by Toon Beerten, titled "DIY LED Mood Lamp." This project serves as an intriguing addition to any room, guaranteed to impress viewers. The lamp features a color-fading effect that enhances its visual appeal....

A Mixed-Signal LED Clock

The term "mixed-signal" typically refers to circuits and integrated circuits (ICs) that process both analog and digital signals. In this context, the designation "A mixed-signal LED clock" may be somewhat misleading, as this is a fully digital clock. However, the...