Free design seismic data recorder


A free hardware design seismic data logger meeting the needs of scientific data collection and the deployment in rugged conditions.

Ruwai is the spin-off of the Community Environmental Observation Network (CEON) project. Within CEON, the proof-of-concept and a first prototype of the free hardware design seismic data recorder was developed. The data logger is named Ruwai and is now further developed so that it can be used in day-to-day data collection.

The main focus is on full transparency and easy reproducibility. All hardware design files are publish under a creative commons licence and the software source code is published using a GPL license.

Project metadata

Related publications
Technical Reports Conference presentations
Related links
  • Wiki    Knowledge database.
  • Git repository    Software source code and hardware design files.
Related projects
The project started March, 2015 and is still running

I have the following responsibilities within the project:

  • project lead
  • core developer

The aims to be achieved by Mertl Research are:

  1. Development of a free hardware design seismograph.

Related blog posts

Ruwai se - the second edition › Ruwai se
We have learnt a lot from the deployment of the Ruwai recorders within the SeisRockHt project. The new prototype, the Ruwai se, is an improved version including major software fixes and a better usability in the field. Read More ›

First permanent installation › Ruwai set free
Last week we installed two Ruwai data recorders at two field sites. One in a gallery at the foot of mount Hoher Sonnblick and another one at the top of mount Kitzsteinhorn. I’m curious if the data recorders behave as reliable as they did in the lab. Read More ›

Makerfaire Vienna and EGU General Assembly › Conference week
The next week is going to be exciting. I will take part at two conferences in Vienna. Read More ›

GPS timestamping works › Ruwai in sync
One very important feature of a seismograph is the timestamping of the sampled data to an absolute time reference. The most important a global time reference is the GPS time and I'm using it to correctly timestamp the samples of the Ruwai data recorder. A test with another seismic data recorder of a different type shows that it is working. Read More ›

Learning by doing › GPS Timing Shield assembled
I started with the first small series of GPS Timing Shield PCBs. After resolving some problems it worked fine. Read More ›

DIY assembly › Power Supply Shields
I started with the assembly of a small series of Ruwai. I chose the Power Supply shield to start because it doesn't contain too many SMD components. Perfect to start learning. Read More ›

Exciting milestone. › First self-built Ruwai
It was the first time, that I connected to a completely self-built Ruwai data recorder. Read More ›

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