Simple DIY Lightbox
No description available.
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...
Audiostrobe-compatible LED glasses
Audiostrobe glasses are utilized alongside light and sound machines, as well as certain brainwave entrainment software. The glasses are equipped with built-in LEDs.
Audiostrobe glasses are designed to enhance the sensory experience provided by light and sound machines, which are often...
bicycle back safety light circuit schematic
This circuit is designed to produce a clearly visible light using 13 high-efficiency flashing LEDs arranged in a pseudo-rotating sequence. Its low voltage, low battery drain operation, and compact size make it suitable for mounting on bicycles as a backlight...
LED tilt level
This electronic level utilizes two LED indicators in place of an air bubble. When the surface tilts to the right, one LED illuminates; conversely, if it tilts to the left, the other LED illuminates. Both LEDs light up when the...
LED effects with ATTYNI2313
This project I made for my little daughter. It is 24 channel light illumination. The schematic is very simple 24 LEDs, 1 MCU and some additional components. The main principle is dynamic indication, which is usually implemented for control of...
LED Power Failure Light
The power failure light that I eventually designed and built is housed in the plastic case from a wall-mounted power transformer. I had accidentally destroyed the transformer by shorting its output, and had kept the plastic case for years, just...
10 LED VU meter LM3915
This simple LED VU meter has only a few parts but is useful as an indicator for the noise. The circuit is built around an LM3915, the brother of the logarithmic LM3914. The input signal from the VU meter is...
220V AC Powered White Led Lamp
The circuit provides sufficient illumination suitable for reading purposes. Capacitor CX, in conjunction with diodes D1 through D4, constitutes the AC step-down circuit. CX lowers the high voltage AC from the mains to a low voltage AC, which is subsequently...
Supply Voltage Indicator
This circuit clearly indicates the supply voltage level in a larger device. When the indicator receives a stable 12 volts, LED1 emits a steady yellow light. If the input voltage drops below 11 volts, LED1 begins to blink, with the...