Riffle: an Open Source Water Monitoring Approach

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](https://publiclab.org/wiki/open-water). (Lead image by @cfastie) For an overview of the design philosophy behind the Riffle, and **what constraints and uses it was aimed at**, see [this wiki page](https://publiclab.org/wiki/riffle_design_philosophy). Public Lab has supported development of an [Arduino](https://www.arduino.cc)-compatible [Riffle version - a datalogger enclosed in a water bottle](https://github.com/OpenWaterProject/riffle_328). This is great, because the Arduino community is huge, and lots of knowledge and troubleshooting resources are now applicable to the Riffle project. (The first **Riffle** design was an [ARM-based datalogger board enclosed in PVC](https://github.com/bgamari/riffle)) **** # Riffle 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: - [Openwaterproject](https://github.com/OpenWaterProject) -- the main organization on github - [riffle_328](https://github.com/OpenWaterProject/riffle_328) -- hardware designs, instructions and software for getting started with the Riffle_328 datalogger - [riffle_328-conductivity](https://github.com/OpenWaterProject/riffle_328-conductivity) -- Design considerations around conductivity - [riffle_328-depth](https://github.com/OpenWaterProject/riffle_328-depth) -- Depth measurement circuit prototype - [riffle_328-turbidity](https://github.com/OpenWaterProject/riffle_328-turbidity) -- Turbidity sensor prototype - [riffle_328-thermistor](https://github.com/OpenWaterProject/riffle_328-thermistor) -- Connecting a thermistor to a Riffle - [riffle_328-i2c](https://github.com/OpenWaterProject/riffle_328-i2c) -- Connecting i2c sensors to a Riffle - [riffle_328-one-wire](https://github.com/OpenWaterProject/riffle_328-one-wire) -- Connecting one-wire sensors to a Riffle # Sensor Designs We've started to summarize some of the approaches to sensing water parameters like conductivity and turbidity: - [Sensing conductivity](https://publiclab.org/wiki/conductivity_sensing) - [Sensing turbidity](https://publiclab.org/wiki/turbidity_sensing) # Activities Here are some activities the Public Lab community has conducted using the Riffle [activities:riffle] # Project Status 2017: A second small order of Riffle_328 boards was shipped on May 30th, and is on its way to the Public Lab kits department in Portland, Oregon. From there it will be sent to Public Lab community members who ordered them. The Riffle was available for pre-order until March 17. https://publiclab.org/questions/warren/06-12-2017/what-s-the-battery-life-of-the-nano-data-logger#answer-comment-16862 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 # How to get a Riffle Datalogger The Riffle is open source, so if Public Lab is not currently offering it for sale, anyone can take the designs above to a PCB fabricator and have one made, copy and remix the design, 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](https://envirodiy.org/mayfly/). 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](https://www.adafruit.com/products/2772) and [Adalogger FeatherWing RTC + SD Add-on](https://www.adafruit.com/products/2922). These are two commercial products which snap together. 3. [Cave Pearl Project logger](https://hackaday.io/project/6961-the-cave-pearl-project). 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. 4. see more open source data loggers collected on the [Data Logging page](/wiki/data-logging) **** ## Questions [questions:riffle] **** ###All updates related to the Riffle [notes:riffle] **** ##Related Questions Since the Riffle is Arduino-compatible, here are also some Q&A for Arduinos in general: [questions:arduino] The Riffle is also a part of a larger area on data logging. Here are some Q&A asked more generally: [questions:data_logging] [questions:nano-data-logger]...

Author Comment Last activity Moderation
mr_juara17 "This is such a beautiful and cool project tho! The lapse rate calculation is so fun to see. Regards Pengeluaran Sydney Tercepat " | Read more » over 1 year ago
cfastie "That's a great development. Thanks for alerting me to that. The key to this advance is knowing how to structure the KML code to define the color of..." | Read more » almost 4 years ago
joaquinx "Dear @cfastie! How are you? Joaquin from Aerocene project here. One of our community members, Fede from Buenos Aires, has created a Python code tha..." | Read more » almost 4 years ago
fuura "It will work with UNO? Also your GPS module is so expensive, I try similar project with Beitian BN-280 and NeoGPS library. " | Read more » over 4 years ago
zengirl2 "Whoah, my first! So exciting. :) " | Read more » over 5 years ago
warren "@warren awards a barnstar to Zengirl2 for their awesome contribution! " | Read more » over 5 years ago
gretchengehrke "Hi @pdhixenbaugh! This is great. Have you seen that there is an Open Hour on Data Loggers this Monday (12/4) at noon ET / 9am PT? Might you be free..." | Read more » over 5 years ago
kgradow1 "https://publiclab.org/wiki/coqui " | Read more » over 6 years ago
pdhixenbaugh "@kgradow1 I'm having trouble finding the coqui activity grid. Could you link to it? " | Read more » over 6 years ago
kgradow1 "Accidentally posted this on the coqui activity grid and looks like I can't remove it. Help? " | Read more » over 6 years ago
donblair "Hi Rebeccah! Fantastic stuff here. Lots to digest, and I have several thoughts -- but first, quickly: the frequency output of the Coqui requires..." | Read more » over 6 years ago
cfastie "Hi Rebeccah, Just in case this can explain the problems when using the proto board, are you aware that the proto board for the Riffle has its pins..." | Read more » over 6 years ago
pdhixenbaugh "Hello Rebeccah! I'm interested in replicating this experiment! The biggest thing I am unsure about is the code - can you link to the riffle code yo..." | Read more » over 6 years ago
warren "Hi, Rebeccah -- looks like your lead image didn't work -- maybe try again, or email it to web@publiclab.org if you can't get it to upload? I'm int..." | Read more » over 6 years ago
eustatic "I support the use of the term Sniffle! Lauren Sullivan would probably agree! the battery clip will also be tres useful " | Read more » almost 7 years ago
Bob "After 3D printing the battery clip, you may need to press the battery arms together while snapping it onto the Riffle board. I uploaded the battery..." | Read more » almost 7 years ago
cfastie "Nice battery clip. I covered the back of my Riffle with adhesive Velcro hooks and wrapped some adhesive Velcro loops around the battery. But I migh..." | Read more » almost 7 years ago
kinasmith "I am also very curious how much temperature affects the batteries in very low current applications. I haven't found good documentation about that. ..." | Read more » almost 7 years ago
cfastie "This is probably not the best data set to do calculus on. The air temperature data is from a sensor in a jug suspended above the pile, and the batt..." | Read more » almost 7 years ago
donblair "Yay, data!! Neat observation about the battery voltage and the temperature. Makes me want to compare the rate of battery voltage drop to the temp..." | Read more » almost 7 years ago
kinasmith "Nicely done, and nice temps for such a small pile too! I'm curious to see how long they can sustain that heat. I've done some work with compost in ..." | Read more » almost 7 years ago
david-days "I imagine so (regarding the grass). If it's fairly fresh, there's probably enough water content to feed the bacteria as things break down. We use..." | Read more » almost 7 years ago
cfastie "Thanks David, I wish I had some of your manures to spice up my pile. I'm surprised at how hot this pile is without the addition of any N-rich mater..." | Read more » almost 7 years ago
david-days "Excellent work, @cfastie! I live on a farm in Ohio, and we use cleanup from the chicken house and the horse/goat barns to make our compost piles. ..." | Read more » almost 7 years ago