GDSTR

Had an productive meeting with UCL’s Moat experts, Vera Cady & Vladimir Dyo today in our regular 2pm meeting with Brad.

Key points from our chat were:

Root privilages are better for installation purposes, though not ideal.

Vera: Tmote’s have 15 power levels… 1 gives a range of 30cm’s, 15 give a range of the whole 7th floor.

Clock drift is apparent when multiple power over ethernet.

Brad: We have on hand in the department:

• Approximatly 30 Moats
• 2 USB Hubs
• 2 Soekris Boxes

Orders for more hardware have been placed and will be confirmed next week. USB Hub will arrive in days, Soekris boxes will take 1-2 weeks.

We’ll be using the D-Link 7 port DUB H7 hub…

Problem highlighted in experiments that when 4 – 7 motes in operation after a week they die

Soekris boxes that boot on HEN have no disk. Boxes need to be set up to netboot over PXE so there’s no need to install anything on the boxes.

As an overview the topology will be as follows:

• Soekris boxes will be placed in a region
• Moats will hang off Soekris boxes.
• Multiple hubs will have long run length – provide potential to daisy chain devices.

ToDo:

• Look at Chip Con for power level settings.
• Make Contact with HEN team – Adam / Felipe
• Develop remote login capabilities on Moats
• Find out the run length limit of USB cables
• Update & Include Topological diagram from presentation on blog

ToDo Aside:

• Tiny OS – Version 2.0 – Check features
• Contiki as opposed to Tiny OS
• Stargate
• Power Over Ethernet (POE)