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Riffle: an Open Source Water Monitoring Approach


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Overview

The Riffle is a collection of designs that take an open source approach to water monitoring, with the intent of making gathering water information easier and more accessible. It is part of Public Lab's Open Water Project.

For an overview of the design philosophy behind the Riffle, see this wiki page.

The first Riffle design was an ARM-based datalogger board enclosed in PVC; Public Lab has supported development of an Atmel328-based datalogger enclosed in a water bottle.

Water Monitor Designs

By now, several instrument designs have been constructed around the Riffle, some of which of are described in an array of Github repositories:

Sensor Designs

We've started to summarize some of the approaches to sensing water parameters like conductivity and turbidity:

Activity grid

Here are some activities the Public Lab community has conducted using the Riffle

Purpose Category Status Author Time Difficulty Replications
Riffle Beta project - Methane Gas Sensor - - @Bob - - 0 replications: Try it »
Soaring Riffle field-test - @cfastie - - 0 replications: Try it »
Compost is hot, says Riffle field-test - @cfastie - - 0 replications: Try it »
In the heat of the pile observe - @cfastie - - 0 replications: Try it »
Blink a LED - Write a 'Sketch' and build a breadboard circuit for the Riffle build review-me @pdhixenbaugh 1h medium 1 replications: Try it »
Riffle test 1 verify - @cfastie - - 0 replications: Try it »
Riffle campout test-limits - @cfastie - - 0 replications: Try it »

Add an activity  or request an activity

Activities should include a materials list, costs and a step-by-step guide to construction with photos. Learn what makes a good activity here.

Project Status

2016: A small order of Riffle_328 boards arrived late April 2016, and were sent to Public Lab community members as a way of testing the design and informing further development.

Projects using this riffle can be found at https://publiclab.org/tag/riffle and https://publiclab.org/tag/riffle-beta

2017: The Riffle is currently available for pre-order until March 17.

How to get a Riffle Datalogger

Order the Riffle from the Public Lab Store by March 17th.

The Riffle is open source, so additionally, anyone can take the designs above to a PCB fabricator and have one made, or investigate other dataloggers.

Riffle Alternatives

The following dataloggers also have a real time clock and log to a micro SD card as the Riffle does. All of them are based on Arduino and will run more or less the same sketches. These are all open source hardware.

  1. EnviroDIY Mayfly Logger. Designed at the Stroud Water Research Center and commercially available through Amazon but currently out of stock (as of Feb 2017).
  2. Adafruit Feather M0 and Adalogger FeatherWing RTC + SD Add-on. These are two commercial products which snap together.
  3. Cave Pearl Project logger. Ed Mallon's design for a DIY data logger made from very inexpensive clone components (Arduino Pro Mini, SD card board, RTC board). Requires soldering and care.

Questions

Title Author Updated Likes
What are some lessons learned using the Riffle? (Especially Underwater) @pdhixenbaugh about 1 month ago
How to use Alkaline Batteries with the Riffle? @pdhixenbaugh about 1 month ago
Question: purchase sensor @frabisog about 2 years ago

Ask a question  or help answer future questions


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