Raspberry Pis

Categories:  James Davis

As part of our work disseminating technology, we purchased 20 Raspberry Pis for delivery to Ghana. They were intialized and setup with a standalone version of the community site. There were a few things to learn:

  • The Application contexts as there were, were downloaded using HTTrack
  • Then, because of problems doing automated loading of file content, the pages were linked to an intermediate page containing instructions.
  • You need HDMI to connect to RPis the first time (although after the OS is installed you can switch to VGA)
  • HDMI screens are very uncommon in the US, but we found that about a quarter of all projectors take HDMI and we could start the Pis with those.
  • One pi was shipped with a damaged SD card latch, but that was easily fixed with some tape.
  • We hadn’t realized that Raspian had grown to a whopping 3.7gbs, and so barely fit on our mircoSD cards.
    • To fix this we uninstalled scratch and sonic-pi freeing enough space to make the cards feasible.
  • We were able to hook up to the internet to install our material by bridging the ports on our computer.
  • After some testing we found that epiphany worked about as well as chromium and decided to use that.
  • Finally we were able to improve the overall speed of C-Snap on the Pis, which was originally abysmal, by changing the refresh interval to 1/10ms, and not taking up the complete screen.

3Helix – Translational Humanities

Categories:  News and Events
Wisdom Matters The Translational Humanities at Rensselaer

Wisdom Matters
The Translational Humanities at Rensselaer

Rensselaer has developed an umbrella initiative called the Translational Humanities that ties together major disciplinary, interdisciplinary, and community-based research initiatives that are currently underway as well as new initiatives. 3Helix is included as one of these initiatives and the program is featured in an expository promotional piece entitled “Wisdom Matters” developed by Humanities, Arts and Social Sciences faculty.



SGIS is Live!

Categories:  Fellow Alumni: Kathleen Tully, Social GIS Mapping

We are excited to announce that SGIS is live on our community site! Anyone is welcome to play around with the loaded data sets including hazardous was sites for the entire US, Census tracts from 2000 and 2010, and food availability data from across New York State! You can tag locations with categories or other information (new tags need approval) and filter on these tags. You can also draw circles around a user-defined location for your reference using the pencil icon in the top right.sgis-final-screenshot