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I wanted a seismic node, fully open source, with 1 to 4 components, able to record either autonomously in the field and output SEGYs, or be used as an Iris seismic station recording mini-seeds and uploading to an Iris server. I also wanted the node to run an Apache web server accessible in 1 click from anywhere in the world and displaying the last 48 hours of recorded seismic activity. The 1 component version needed to be under $100 and the 3C version under $160, to be truly accessible to schools or institutions in developing countries.
Erellaz built an open source seismograph, Seisberry, with a Raspberry 3B+, Waveshare High precision AD / AC board, geophones and wire. There’s even a fast build tutorial ! Erellaz’s build is forked from will127534’s RaspberryPi-seismograph on GitHub
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