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Ole Wolf

Member Since: December 4, 2013

Country: Denmark

  • I'm not sure if you're asking me, but I haven't made a video so that may be the reason you're seeing a difference. :)

  • Don't press it against your skull. The reverberation is unbearable. ;)

  • I'm currently working on hooking the geophone up to an Arduino. I've constructed an amplifier shield that seems to work (as in "my oscilloscope displays waveforms" and "a pin drop is easily detected on a wooden table"), and I have working Arduino code that reads samples from an analog input and makes an appropriate frequency analysis. So, barring any wildly unforeseen problems the entire setup might actually work already.

    The memory use for the frequency analysis requires an Arduino Mega or an Arduino Due. I have a Due but unfortunately the amplifier requires at least 5V, causing its output to be dangerous to the Due's analog inputs, so I'll have to wait until I've received a Mega.

    If I get it to work, I'll upload the entire thing to Github and keep you posted in these comments.

    Edit: the prototype is already working and runs on a UDOO board meaning it should work on an Arduino Due. Find schematics, board, and code here: https://github.com/olewolf/geophone.

No public wish lists :(