Environmental Monitoring of the Rivers in Yogya
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DIY Turbidity Meter and beyond
dusjagr has been working for quite a while on different DIY turbidity meter, now making new versions still baser on the BabyGnusbuino, with MIDI capability, VU-meters and speaker aka Niamuk Synthizaaiza...
Publiclab's data loggers and others
Besides intersting work on spectrophotometers and other nice webtools, like infragram, they also started some water monitoring, using the mchack platform for logging of temperature and conductivity:
Our friends in Bangalore have been continuing their work on a water quality test for drinking (F, As and e-coli). First with some hardware and color detection, now using a smart phone interface. contact arun and sam.