I used it for a tech demo with Scrawl, which gave me a pretty good idea of its capabilities. The perfect opportunity presented itself when I got a chance to play with my friend Joseph's AxiDraw plotter.
However, while I had the data, I didn't really have an application other than just gawking at my heart rate.
#Cardiograph serial
It comes with an example Arduino sketch which I used to stream the data over USB serial to my computer. The thing is super cheap, pin-compatible with Arduino, and works great with a little fiddling and smoothing on the software side. To that end, I'd bought an Olimex EKG-EMG shield, basically a glorified differential amplifier with a huge gain and some filtering. For one thing, the collection and processing on ECGs is much less complicated, and for another, people feel a much more direct connection to their heartbeat than their brain activity they can feel it, manipulate it fairly easily, and it has significant and obvious health implications. Each entrant to the event had their cardiac activity measured by a homemade ECG and drawn in real-time on an ID badge that they wore throughout the event.įor a long time, I'd wanted to do something interesting with ECGs (as opposed to EEGs as in Project Brain or Mind Music). This is a write-up for Cardiograph, a social/technological experiment I ran as part of Culture at Work's event Science: A Body of Facts. com About Projects Now Do Not Erase Cardiograph
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