Wireless Sea Measurement Unit

Intermediate ReportA Plan for Aarne Halme Project

Juha VanhalakkaErkka Mutanen

ContentsO Project Schedule

RepriseO CodeO HardwareO Components

PurchasedO Building Board i-ivO Ready ChipO CasingO MechanicsO After Installation

Project Schedule Reprise

O Project Plan 25.09.O Progress Report 30.10.

+ electronics ready, code runningO Demo A 20.11.

+ casing ready, code readyO Demo B 27.11.

+ mounting prototype doneO Documentation done 10.12.

CodeO Xbee communication is workingO Measurement data logging incompleteO No tests done on the XBee chip O UI Code is lateO Challenges: learn PHP from the start,

learn JavaScript from the startO Also, possible changes in UI makes the

programming take more time and more difficult

HardwareO Hardware is on timeO We have a lab worker making us a

seabed mount steel tubeO Todo : power electronics

dimensioning, (battery capacity against solar panel power)

O Budget ?

Components PurchasedO We have ordered all parts from

Farnell and DigikeyO We have a WIKA hydrostatic

pressure sensorO We have a PT100 temperature

sensorO We have an industrial grade casing

from EnstoO List of components in Excel sheet

Building Board I

Building Board II

Building Board III

Building Board IV

Ready ChipO 10 x 12 cmO Build start Oct 13th

O Finished Oct 22nd

O Includes recharging circuit and Xbeeradio I/O connectivity

O Juha drew the boardO Built 2 identical ones

for parallel testing

O Here it is:

Casing

Mechanics

After Installation: