Now it is very easy to build your own siren sound alarm, small enough to be carried in a garment pocket. This powerful audio-visual alert device is realized using the renowned Arduino platform. The 9V ...

The project utilizes an Arduino Mega micro-controller, which serves as the brain of the device. The SparkFun Sound Detector is used to capture sound levels, converting them into electrical signals ...

The Tsunami can also be used to measure signals> It does not use the Arduino’s ADC, but has its own high speed comparator, allowing it to measure frequency ... phase detector. By connecting the output ...

[Sebastian Tomczak] was borrowing a homeade muon detector from his friend, and managed to hook it up to his computer through an Arduino. The detector itself uses 3 fluorescent tubes to detect ...

This detector keeps the first oscillator but eschews the second one in favor of an Arduino. The microcontroller acts as a frequency counter, monitoring the frequency and issuing an alarm when it ...

One of the essential parts of any home security system is a door detector that lets you know ... The system here uses a cheap Arduino board, a few sensors, and a magnetic contact switch.