The Freetronics Instructables competition entries are now starting to come in, and we're starting to highlight a few interesting projects starting with the connected seismograph by Instructables member 86. Considering the recent spate of seismographic events this project is well-timed, and is also simple to make so you can track tremors and so on yourself.
Making the sensor itself is very simple, and returns a small voltage via a small amplifier IC which can be measured with an Arduino analogue input pin. Finally the data can be captured with a PC connected via USB using supplied python code and also sent to the online data capture service plotly - which gives a simple opportunity to measure more than one sensor in real time - perhaps a great experiment for geology or science students.
For details on how to make your own seismograph with an Arduino, visit the project's Instructable page. And for more, we're on facebook, Google+, and twitter - so follow us for news and product updates as well.