8mar2012

tm aspects new addressing helps. some range issues perhaps at 400 ft.

mag, acc working, plottable.

gps taking a while to lock. typ 5-6 minutes, sometimes 20-30 minutes. can see it first acquire timelock; later develops position.

SD (peter maybe in spring)

power: alkaline vs lithium? cheaper.

realtime plotting: still need to make plots

light design for location/status

send to casey today. sufficient for 20 ducks and 2-3 receiving stations. also will need xbee esplorer for programming, hold off.

first check for avaialbility

thomas using data files

structure of GPS sentences? want it to have one GGA sentence once a second

Natl Marine Elect Ass (NMEA) standard GPS sentences

GGA: time, latN, longE, xxxxx, num sat

GLL: lat long only

mag/acc data higher cadence

packet counters vs timestamps

needs work**

defn of mag axes, projections of mag components

diffl position

has a layout for next iteration.

adjusting battery volt 11.1V lithium rechargeable.

each pair of panels should supply 3.6V

this one is 11.1V, 3x3.6V

some random battery that peter found

need to be careful

use of lithium batteries, care thereof

try to send out layout before leave

new person?

hope to be ready spring term.

whitey monday aft