This high-frequency signal is crucial for detecting metal objects, as it changes when the detector passes over a metallic object. The Arduino plays a pivotal role in this setup. It processes the ...

Effective water management involves supplying water according to the real requirement, and thus measuring water is very essential step in water management systems. There are many water flow ...

[Dzl] and his rather serious looking son are metal detector enthusiasts ... is constantly measured by the Arduino. When metal enters the coil it alters the frequency, which is immediately picked ...

This build comes to us from [mircemk] who built this metal detector around an Arduino Nano and uses a ... the coils and determining their resonant frequency is the most important part of this ...

Computer engineer Thiery Guennou based in France has created a new Arduino compatible precision frequency counter 5 or 120 MHz. The inspiration behind the Arduino board was to build an open ...

French developer is looking for support amongst the Arduino community for his crowd-funding project – an Arduino compatible high precision frequency counter. Thierry Guennou, writes: “The concept of ...

This sketch shows a Multisim SPICE simulation of a frequency threshold detector. If the input clock frequency is below the threshold frequency, the output is logic zero. If the input frequency is ...

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.