Graphs the filtered data from the sensor and overlays the beat detector stage, allowing a visual inspection of the beat detection algorithm. Start processing and open the file rolling_graph.pde If ...

This article can be more of a guide on how to construct an heartbeat sensor utilizing an Arduino. Although a complicated one, this project comes as an interesting one to many electronics hobbyists.

Arduino Earthquake Detector Alarm with Seismic Graph Overview This project utilizes the ADXL335 3-axis accelerometer as a sensor to detect tilting, trembling, or shaking movements indicative of an ...

These days, most of us have a smartphone. They are so commonplace that we rarely stop to consider how amazing they truly are.

The holidays always remind us of our favorite toys from when we were kids. Johnny Astro, an Erector set, and — of course — a Spirograph. [CraftDiaries] has an Arduino machine that isn’t quite a ...