The idea behind this compact and economical Vibration Sensor Alarm is very simple. It uses a cheap and cheerful vibration sensor to drive a piezo-sounder. As can be seen in the circuit diagram, it is ...

Vibration analysis is a powerful and non-invasive way to measure, understand, and quantify the internal dynamics of mechanical systems, but the cost of the necessary instrumentation is sometimes a ...

MEMS-based accelerometers are increasingly deployed in harsh environments where mechanical stress is not just expected but constant.

Part 1 of this series addressed the advantages and disadvantages of various vibration sensors; Part 2 examined signal conditioning and system hardware selection and configuration. I’ll wrap up by ...

There are a lot of ways to keep your stuff from getting stolen, but legendary DIYer Kip Kay shows us a $2 alarm that will fit on just about anything. All you need for this is some soldering skills, a ...