Jens, As a requirement for CS194 I have to write you a weekly progress email every week. This past week I spent most of my time setting up my environment on the samoa machine downstairs. I successfully downloaded and built Virgil and Avrora. After setting up those compilers I downloaded a few example Virgil programs and compiled them down to AVR code to run on the simulator. I attempted to use a few parameters on the simulator to get used it. After I got everything set up on the machine I started reading the TinyOS tutorial online. Unfortunately I was only able to read the first tutorial because after reading the first I attempted to write my own nesC program that used the LEDs as counters. I was unable to get my program to compile because of poor documentation on the nesC compiler. I plan on talking to Ben about this. This coming week I plan on brainstorming ideas for writing the analog to digital converter driver in order to interact with the sensor. In order to do this I plan on reading the documentation on the ADC and then studying the already existing nesC solutions. Also I'm going to have to study the Virgil timer implementation, since any driver written is going to have to interact with the timer for interrupts. At some point I plan on downloading the already existing Virgil code to the motes, but that won't happen until Ben can find somebody to help us. - Ryan