Difference between revisions of "GPS"
From ivc wiki
Jump to navigationJump to search
(→Tools) |
|||
| Line 7: | Line 7: | ||
== MTK MT3318 == | == MTK MT3318 == | ||
=== Enable 5 Hz == | |||
The default update frequency is 1 Hz, or once per second, the MTK chipsets support 5 Hz. | |||
> $PMTK300,200,0,0,0,0*2F | |||
> $PMTK251,115200*1F | |||
> $PMTK300,200,0,0,0,0*2F | |||
== Hacks == | |||
* [http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=81990#508553 Enable commands over Bluetooth] | |||
=== MTK commands === | === MTK commands === | ||
| Line 25: | Line 36: | ||
* [http://www.sparkfun.com/datasheets/GPS/MiniGPS_1.32.zip MiniGPS] | * [http://www.sparkfun.com/datasheets/GPS/MiniGPS_1.32.zip MiniGPS] | ||
* [http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=81990#508614 MTKTweak] | * [http://www.gpspassion.com/forumsen/topic.asp?TOPIC_ID=81990#508614 MTKTweak] | ||
== References == | == References == | ||
Revision as of 17:30, 30 March 2008
As of today (March 2008) the two best GPS chipsets available are the SiRF Star III and MTK MT3318. They offer fast initial fix and can utilize weak GPS signals by massive parallel correlation computing power [1].
SiRF Star III
SiRF commands
MTK MT3318
= Enable 5 Hz
The default update frequency is 1 Hz, or once per second, the MTK chipsets support 5 Hz.
> $PMTK300,200,0,0,0,0*2F > $PMTK251,115200*1F > $PMTK300,200,0,0,0,0*2F
Hacks
MTK commands
Other chipset brands
- SkyTraq
- Nemerix
- uBlox
- uNav
- Sony
- Fujitsu
