### The [RIFFLE](http://en.wikipedia.org/wiki/Riffle) open source datalogger #### RIFFLE: **R**emote **I**ndependent **F**riendly **F**ield-**L**ogger **E**lectronics We are working to develop an open source hardware datalogger that can be placed in the field for extended deployments and measure common water parameters like temperature, conductivity, depth, and turbidity. There have been several iterations of the hardware, including a version based on an ARM chip. Currently, development is focused on an Arduino-compatible board that is programmable through the Arduino IDE. The github repository for the hardware design files (in Eagle) are here: https://github.com/openwaterproject/riffle The board currently based on the Atmel328p, and is intended to be compatible with the accessibile and ubiquitous Wiring platform (and, by extension, the Arduino IDE). The width and height of the Riffle-ito device allows the device to fit through the mouth of a standard commercially produced plastic water bottle (20 mm). By inserting the Riffle-ito into such a bottle, along with a few AA batteries, and connecting a thermistor and other sensors that poke out through the water bottle cap, a very accessible water quality sensor may be constructed. We're also working with the [Open Pipe Kit Project](http://openpipekit.github.io/) in order to find new ways of getting 'live' data from the field online. [![Riffle-ito.png](https://i.publiclab.org/system/images/photos/000/006/396/medium/Riffle-ito.png)](https://i.publiclab.org/system/images/photos/000/006/396/original/Riffle-ito.png) [![RiffleVerticalGood.png](https://i.publiclab.org/system/images/photos/000/006/397/medium/RiffleVerticalGood.png)](https://i.publiclab.org/system/images/photos/000/006/397/original/RiffleVerticalGood.png) [![riffleAudio.png](https://i.publiclab.org/system/images/photos/000/006/398/medium/riffleAudio.png)](https://i.publiclab.org/system/images/photos/000/006/398/original/riffleAudio.png) [![riffleLabel2.png](https://i.publiclab.org/system/images/photos/000/006/399/medium/riffleLabel2.png)](https://i.publiclab.org/system/images/photos/000/006/399/original/riffleLabel2.png) #### References - Github repo for the Open Water Project: https://github.com/openwaterproject