To capture an instant on film or sensor with a camera, you usually need a fast shutter. But alternately a flash can be triggered with the scene in the dark and the shutter wide open. It’s this latter ...

[Tobe] has an intervalometer for his camera, but he wanted a device that could trigger the shutter using several different methods, not just time. He calls his creation the Megavallometer, which can ...

Anyone can hang a poster from the wall, but if you're willing to put a little DIY into your home decorations, this Arduino-powered LED wall-art looks amazing, and reacts to music playing in the room ...

Requires: 8x8 Neopixel Matrix connected to digital pin 2 Arduino Sound Sensor connected to analog pin 0 optional LED or laser diode connected to digital pin 4 Samples the voltage from the sound sensor ...

When a clap sound is detected, the relay toggles the bulb ON/OFF. Useful for smart home and assistive tech. Clap sound is detected by the sound sensor. Arduino reads the signal. Relay switches the ...

Abstract: Infrasonic underwater sensing remains a critical challenge due to the limitations of conventional acoustic sensors in achieving high sensitivity at very low frequencies. This paper presents ...