Fast molecular data processing with the Raspberry Pi

I can’t pretend that I know exactly what Matt Williams is talking about in his article, but suffice to say he’s doing something very impressive with his Pi. I’ll let him explain:

Substructure substance matching is, in many ways, a non-trivial exercise in Cheminformatics. The amount of data used to determine matches grows very quickly. For instance, one method of describing a molecule’s “fingerprint” uses 880 bytes. Or 2^880 combinations. This space is very sparsely populated, but there are still many potential combinations.

If you’re still with me, in his article he explains how the Pi does pattern matching with grep and how it speeds up when reading from the cache. Read his article here.

Land and water-based environment simulation with a Raspberry Pi controller

paludarium

This is simply beautiful. Poopi and Piter have created a “paludarium” – an enclosed biodome in which environmental conditions are simulated – which contains both land-based and water-based lifeforms.

The paludarium is controlled by a Raspberry Pi and 4 ATmega 168P chips and has the following equipment hooked up:

  • 6 independent sections of halogen lights
  • 27 independently-controlled 1W LEDs for various effects
  • 3 independent 3W RGB LEDs for ambient colour effects
  • 3 independent 3W LEDs for thunder and moon simulation
  • 3 independent 10W LEDs for aquarium lighting
  • 2 independent fans for wind simulation
  • 3 fog generators
  • 2 independent solenoids for rain control
  • Temperature monitoring

It really is a lovely project they’ve designed. I can’t find anything more about either the project or the guys (or girls!) behind it, but here’s a video of it in action from simulated sunrise to simulated sunset.

The music is “Healing” by Kevin MacLeod.

I spotted this over at the Central Florida Aquarium Society.