blinking led pic microcontroller hi tech c circuit

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 our most popular games projects. As can been seen in the photo, the...

Night light Wake up Alarm Combo circuit

A nightlight combined with a wake-up alarm has been developed. This nightlight incorporates six LEDs that activate when a photosensor detects low ambient light levels. Additionally, a buzzer plays a cheerful tune when ambient light levels increase again. The system...

LED flashing circuit for toys

It consists of a 4047 low-power monostable/astable multivibrator, IC1, used in the astable mode to provide the timing pulses to control the flash rate of the LEDs. To accomplish the astable mode, pins 4, 5, 6, and 14 are connected...

old dick smith catalog mains led circuit

Hello everyone. This is my first post in quite some time. I obviously do not have an old enough catalog for reference. In the data section, there were references to... The input data indicates a lack of sufficient information regarding the...

1.5 Volt LED Flashers circuit

The LED flasher circuits operate on a single 1.5-volt battery. The circuit on the upper right utilizes the popular LM3909 LED flasher IC and requires only a timing capacitor and an LED. The LED flasher circuit using the LM3909 integrated circuit...

One transistor LED Flasher

This may be the simplest LED flasher circuit you can build, with the notable exclusion of LEDs with integrated flashing circuits. This might be a good replacement for the LM3909 in some applications. Take a close look. Only the emitter...

Use an LED Matrix Horizontally

LEDs provide a convenient way to electronically display information. Although the seven-segment LED display, arranged in the form of the digit 8, is common. The seven-segment LED display is a widely used electronic component for visual representation of numerical information. It...

led metronome circuit

The LED Metronome is a contemporary version of a traditional device that is essential for music teachers, students, and composers. This circuit employs 12 LEDs to replicate the swinging motion of a pendulum, along with a speaker connected to a...

LED Battery indicator

This battery allows the indicator to the car battery voltage monitor. The indicator has four LEDs which indicate power. The more LEDs, the higher the voltage. The last LED is a flashing LED. It comes on when the accuspaning limit...