John Keefe has designed an open source data logger that is able to monitor conductivity, temperature and turbidity of water in lakes and fits inside a plastic bottle.
The board is designed to monitor the conductivity (and, possibly, contamination) of water in lakes and streams, with the wonderful feature that it fits through the mouth of a regular water bottle. It’s called Riffle and it is the brainchild of Don Blair, who’s working with Public Lab and the MIT Center for Civic Media. This week I had the honor of working with Don at MIT.
‘Circuit Cobbling’ the Riffle Data Logger – [Link]
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