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donblair 651 research notes and wiki edits | Moderator



Joined almost 6 years ago


Riffle-328p version 0.96 :)

by donblair over 3 years ago | 5 | 3,090 | 3

Quick update on the latest design for the Riffle ... But first, a quick review: Several of ...

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Riffle & Coqui Development Plan

by donblair over 3 years ago | 0 | 2,035 | 1

(This is just a sketch re: what the Coqui and Riffle are intended to do, and how to develop them ...

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Shallow note on depth

by donblair over 3 years ago | 10 | 1,363 | 1

This is just to hold some pics for now ... more deets later! [![depthSteps.png](https://i.pu...

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"Less is more: The Role of Small Data in 21st Century Governance."

by donblair over 3 years ago | 2 | 2,646 | 2

A few months back, Diego Rafael Canabarro had graciously invited Catherine D'Ignazio, Jeff Warren...

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Coqui PCB + audio jack

by donblair almost 4 years ago | 0 | 1,521 | 1

[![coqui-v1.0-schem.png](https://i.publiclab.org/system/images/photos/000/007/466/medium/coqui-v1...

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Making a DIY conductivity probe from a water bottle and metal screws

by donblair almost 4 years ago | 6 | 5,453 | 3

[![IMG_0722.JPG](https://i.publiclab.org/system/images/photos/000/007/152/medium/IMG_0722.JP...

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Coqui BBv1.0: Using a thermistor as a temperature probe

by donblair almost 4 years ago | 0 | 1,192 | 0

<iframe width="560" height="315" src="//www.youtube.com/embed/cvWfdVbV_08?list=UUmmEmOGni0fzzDsXi...

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Coqui BBv1.0: Reacting to an LED with Sound

by donblair almost 4 years ago | 0 | 1,136 | 1

<iframe width="560" height="315" src="//www.youtube.com/embed/Snr0Zd8oueE?list=UUmmEmOGni0fzzDsXi...

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Coqui BBv1.0: Assessing Ambient Light with a Photoresistor

by donblair almost 4 years ago | 0 | 1,113 | 2

<iframe width="560" height="315" src="//www.youtube.com/embed/S1GoPiRVTD0?list=UUmmEmOGni0fzzDsXi...

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Coqui BBv1.0: Testing conductivity of a solution

by donblair almost 4 years ago | 1 | 1,404 | 3

<iframe width="560" height="315" src="//www.youtube.com/embed/Txu08bFOpaU?list=UUmmEmOGni0fzzDs...

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Coqui BBv1.0

by donblair almost 4 years ago | 6 | 5,196 | 7

A Coqui is a device that generates an audible output frequency that is a function of any resistan...

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Duty Cycles & 555s --> linearity!

by donblair almost 4 years ago | 15 | 3,768 | 3

I had a great long chat with [Mark Brownawell](http://www.linkedin.com/pub/mark-brownawell/5/530/...

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Water quality voicemails: Vojo & Coqui

by donblair almost 4 years ago | 2 | 5,533 | 6

What if anyone could use any phone -- 'smart' or otherwise -- to leave a 'water quality voicem...

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EPA's Advanced Monitoring Tech Demo Day

by donblair almost 4 years ago | 11 | 2,098 | 3

@mathew and I had a great trip EPA's Advanced Monitoring Tech Demo Day on August 5th at the EPA's...

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Research Note Workflows

by donblair almost 4 years ago | 43 | 2,557 | 3

Jeff Walker and I have discussed coming up with a research note generation workflow that would...

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RIffle-ito and Thermistor Deployment

by donblair almost 4 years ago | 0 | 1,403 | 1

This post was written by Jeffrey D Walker on August, 3 , 2014. I've just copied it from its o...

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First Riffle Deployment: City of Cambridge Water Department

by donblair almost 4 years ago | 0 | 2,660 | 3

NOTE: We presented a [poster](https://github.com/p-v-o-s/riffle-ito/raw/master/artwork/epa-dem...

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Riffleito-TH

by donblair almost 4 years ago | 0 | 985 | 0

(Pronounced like you'd pronounce plural of "Riffleito", if your mouth were full of crackers.) ...

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Open Hour on Water Quality, Monday July 21, 8pm

by donblair almost 4 years ago | 2 | 1,419 | 0

Hey Folks! Tonight, July 21st, at 8 PM It's a Google Hangout -- so, everywhere! ...

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Recap: Open Water Workshop, 7/12/14

by donblair about 4 years ago | 6 | 5,096 | 6

<iframe src="//player.vimeo.com/video/100778803?title=0&byline=0&portrait=0" width="700" ...

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How to download and analyze Landsat imagery

by donblair about 4 years ago | 11 | 3,771 | 4

This morning, Ned Horning provided a tutorial on downloading Landsat imagery to Cape Cod Baywa...

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Water Quality Workshop July 12th @ MIT Media Lab

by donblair about 4 years ago | 1 | 2,496 | 0

Please RSVP here so that we can make...

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Simple 555 conductivity meter

by donblair about 4 years ago | 7 | 4,261 | 4

I'm going to add some notes to this tomorrow, but just wanted to jot some stuff down. Recipe f...

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Using an Audio Jack to Assess Conductivity

by donblair about 4 years ago | 2 | 2,801 | 1

Try Mat Lippincott's idea: use the nicely-standardized electrodes on the end of an audio jack...

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