Robust Field Data Logger - Field Studies Hackday
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Robust Field Data Logger - Field Studies Hackday

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Results of a hack at the first Field Studies Hackday (#fschack), May 19-20 2012 - an Arduino-based outdoors field data logger.

Results of a hack at the first Field Studies Hackday (#fschack), May 19-20 2012 - an Arduino-based outdoors field data logger.

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  • 1. Robust field data logger “flo(g)gr” Andy Piper @andypiper Neil Ford @neilcford Bristol Hackspace team the first Fieldwork Hackday FSC Slapton Ley, May 19-20, 2012
  • 2. the first Fieldwork HackdayFSC Slapton Ley, May 19-20, 2012
  • 3. The Problem • new mobile devices are cool and clever… • but… • fragile • hard to extend • may not have connectivity Image credit: Marcus Grabachttp://www.flickr.com/photos/uploaded/4709034184/
  • 4. Build something thatworks better here….
  • 5. Design thoughts• robust!• physical - interesting but not distracting• not a continuous logger - record data where and when it is of interest; better for battery life and specific choice of stations• extensible / hackable - add new sensors later• SD card - easy access to raw data• not a replacement for traditional methods - enables quicker collection once those have been learned
  • 6. Components
  • 7. Batteries Prototype #1SD Card GPS module Arduino Uno
  • 8. Completed prototype* *by 3pm Sunday
  • 9. Example data capture20120520T130921+00:00,50.29305,-­‐3.65210,5,29.90,29.25,0.56,246.00,100614.0020120520T130947+00:00,50.29266,-­‐3.65235,6,32.20,29.25,0.56,235.00,100609.0020120520T131013+00:00,50.29249,-­‐3.65259,5,33.10,160.72,0.11,228.00,100632.0020120520T131047+00:00,50.29216,-­‐3.65255,6,30.00,132.09,0.44,215.00,100651.0020120520T131135+00:00,50.29239,-­‐3.65328,7,31.30,332.44,0.46,217.00,100645.0020120520T131245+00:00,50.29300,-­‐3.65266,7,35.00,103.69,0.37,208.00,100600.0020120520T131312+00:00,50.29285,-­‐3.65233,7,35.30,111.68,0.59,206.00,100588.00 Al Sa Te .1℃ Pr (Pa La D t/ (x at te es ) m ) t/ 0 Cr e llit p su Lo /T s/ re es n im Sp e d Written as CSV formatted strings to datalog.txt on SD card
  • 10. Analysis Example of current data set used in FSC studiesCaptured data imported to Google Spreadsheet / ODS
  • 11. Clickable live version based on real data capture athttp://batchgeo.com/map/0a57ac5a8a921161713704913809bbb5
  • 12. Code!• Available on Github https://github.com/andypiper/fsc_flogr
  • 13. Future• Field and user testing• Boxed (and funkier - dedicated PCB?)• Simple LCD confirmation display• Ports for probes etc• configurable via SD card to offer continuous log if desired• More data analysis tools - apps and web
  • 14. Thanks• Neil - wiring ninja!• FSC Hackday team - aka “Team Awesome”• Bristol Hackspace - components and advice• anyone who put up with me complaining about Arduino and Strings… the first Fieldwork Hackday FSC Slapton Ley, May 19-20, 2012