[Shimmer-users] GPS Timestamp from Docking Station/Modul

[Ben Groh]

Hi,

for synchronizing the shimmer2R with other sensors I´d like to set the timestamp of the data to GPS time.

1) GPS in docking station
2) GPS in shimmer module


1)
Shimmer documentation:
"The Shimmer Dock has recently been updated to include a GPS module. The GPS module will transmit serial GPS NMEA sentences to the docked Shimmer's external connector UART lines. This data can be used for application synchronization or localization."

So, it should be possible to receive GPS signal with the docking station and set the time of the module accordingly.
The problem is that the GPS LED of the docking station doesn´t stop blinking green (=> doesn´t get a fix).


2)
Alternatively, I could use the GPS board directly at the Shimmer. I cannot find any information which software is necessary to configure the shimmer accordingly. Shimmer connect doesn´t provide a GPS option for the configuration.


Has anybody used ***@Shimmer before?


Thank you
Ben

[Niamh O'Mahony]

Hi Ben,

Are you trying to get a GPS fix on the dock indoors? In order to get a fix,
the dock (or the GPS board) must have a line-of-sight to the satellites,
i.e. a clear view of the sky is required.

Using the GPS timestamp to set the on-board clock will require firmware
development on your part.

Best regards,
Niamh

-----Original Message-----
From: shimmer-users-***@eecs.harvard.edu
[mailto:shimmer-users-***@eecs.harvard.edu] On Behalf Of Ben Groh
Sent: 10 July 2013 09:19
To: shimmer-***@eecs.harvard.edu
Subject: [Shimmer-users] GPS Timestamp from Docking Station/Modul

Hi,

for synchronizing the shimmer2R with other sensors I´d like to set the
timestamp of the data to GPS time.

1) GPS in docking station
2) GPS in shimmer module


1)
Shimmer documentation:
"The Shimmer Dock has recently been updated to include a GPS module. The GPS
module will transmit serial GPS NMEA sentences to the docked Shimmer's
external connector UART lines. This data can be used for application
synchronization or localization."

So, it should be possible to receive GPS signal with the docking station and
set the time of the module accordingly.
The problem is that the GPS LED of the docking station doesn´t stop blinking
green (=> doesn´t get a fix).


2)
Alternatively, I could use the GPS board directly at the Shimmer. I cannot
find any information which software is necessary to configure the shimmer
accordingly. Shimmer connect doesn´t provide a GPS option for the
configuration.


Has anybody used ***@Shimmer before?


Thank you
Ben


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Shimmer-***@eecs.harvard.edu
https://lists.eecs.harvard.edu/mailman/listinfo/shimmer-users


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