The Distributed Sensing Systems Laboratory (DSS) is a research group with the systems subgroup of the Electrical Engineering department of King Abdullah University of Science and Technology (KAUST). Among our research activities, we are interested in the development of Lagrangian-based flash-flood sensing systems (and the associated control/estimation algorithms). We are using C-17 remote controlled airplanes for testing, and these airplanes are controlled by APMs 2.6 (with a few modifications to the original code) and Gumstix COMs:
The sensing concept is related in http://www.newscientist.com/article/mg21829185.500-swarm-of-drones-to-give-early-warning-of-flash-floods.html
We are currently 3D printing the sensors. Stay tuned for the future sensor drop tests!