asset_tracker AGPS

[Hoang]

Dear , 

Follow the previous ticket,  https://devzone.nordicsemi.com/f/nordic-q-a/59034/agps_thingy91

I am trying to use asset_tracker : https://github.com/NordicPlayground/fw-nrfconnect-nrf/tree/master/applications/asset_tracker

Can we enable AGPS?

# Enable SUPL client support
CONFIG_SUPL_CLIENT_LIB=y

Thanks 

BR

Hoang Nguyen

[Heidi]

Hi,

Yes, I believe you should be able to enable A-GPS on the Asset Tracker sample that way. It looks like this pull request that was just merged, adds nRF Cloud A-GPS support.

Best regards,

Heidi

[Hoang]

Dear Heidi.

I checked the link you suggested: "Add support for requesting A-GPS data from nRF Cloud and
processing the response."

In the example of gps, to enable AGPS:  CONFIG_SUPL_CLIENT_LIB=y 

and, I couldnt find this option in the: https://github.com/NordicPlayground/fw-nrfconnect-nrf/blob/master/applications/asset_tracker/prj_nrf9160_pca20035ns.conf

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Because in my application; 

1. Connect LTE-M/NB-IoT 

2. Read the environment sensor (Temperature, Humidity), RSRP, Battery, ...

3. Enable GPS to get the positions 

4. SEnd the data to my webserver (I used HTTP-POST) 

I used the asset_tracker to build my application 

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I want to enable AGPS in this application, how can I do it ?

Thanks 

Hoang  

[Heidi]

Hi, 

The asset tracker sample supports A-GPS through nRF Cloud. So it connects to nRF Cloud and downloads the A-GPS data from there. Which is what the CONFIG_NRF_CLOUD_AGPS config enables.

If you want to access the A-GPS data using the SUPL protocol you will have to modify the sample. I would take a look at the GPS sample and how they added support for A-GPS there, and try to modify the asset tracker sample in the same way.

Best regards,

Heidi

[Hoang]

Thanks so  much

Heidi said:

The asset tracker sample supports A-GPS through nRF Cloud. So it connects to nRF Cloud and downloads the A-GPS data from there. Which is what the CONFIG_NRF_CLOUD_AGPS config enables.

I dont want to use it, bc I am using my cloud - webserver to receive the data from my thingy91

Heidi said:

If you want to access the A-GPS data using the SUPL protocol you will have to modify the sample. I would take a look at the GPS sample and how they added support for A-GPS there, and try to modify the asset tracker sample in the same way.

Ja, it will be the best for me.