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guides:adafruitugps [2013/01/06 09:00]
upu
guides:adafruitugps [2014/08/17 09:47] (current)
uggy Possible interresting update from Adafruit on 10 August 2014 about selling PA6H
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-An attractive looking unit with some great features however ​early versions of the module ​had an altitude limit of 27km. We understand newer versions have a limit of 40km however ​this has not been proven or disproven at the time of writing. A new unit was successfully tested to 38.5km where it worked with no issues. Nothing needs to be set to engage the high altitude mode. +An attractive looking unit with some great features however ​current ​versions of the module ​have an altitude limit of 27km. We understand ​from Adafruit ​newer versions ​are on order that have a limit of 40km however ​these currently aren't on sale. A prototype of this new unit was successfully tested to 38.5km ​by UKHAS where it worked with no issues. Nothing needs to be set to engage the high altitude mode. 
  
-To test if your module has the 40km firmware on it issue the command $PMTK604*6D (newline) to the module i.e :+**PLEASE BE AWARE ANY MODULES YOU PURCHASE FROM ADAFRUIT AT THIS TIME WILL HAVE A LIMIT OF 27KM** 
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 +To test if your module has the 40km firmware on it issue the command $PMTK604*6D (or $PMTK605*31) to the module i.e :
  
 mySerial.println("​$PMTK604*6D"​);​ mySerial.println("​$PMTK604*6D"​);​
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 External link : [[http://​www.adafruit.com/​products/​746|Adafruit Ultimate GPS Breakout]] External link : [[http://​www.adafruit.com/​products/​746|Adafruit Ultimate GPS Breakout]]
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 +__Possible interresting update__ from Adafruit on **August 2014**:
 +//As of 8/10/2014 we are shipping with firmware v. 5632 which improves high-altitude calculations and stability. It is equivalent in all other functionality and is a drop-in replacement.
 +//[...]
 +//Maximum Altitude for **PA6H**: according to the factory, this module will perform up to 40Km but it is only known-tested up to 32,000 Meters.
 +//[...]
 +//We have received reports that it works up to ~32Km altitude (the GPS theoretically does not have a limit until 40Km).
 +//[...]
 +//​We'​ve received reports from customers that have tested this version of the Ultimate GPS module in a high-altitude balloon, and it kept fix up to ~32km! There is a (theoretical,​ untested) firmware limit of 40Km. However, we provide no guarantee that it will work in all HAB'​s.//​
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guides/adafruitugps.1357462845.txt.gz · Last modified: 2013/01/06 09:00 by upu