RE: Where to get the Thingy91 v1.4

Martin Lesund — Fri, 31 Jul 2020 12:37:27 GMT

Hi,
Using an GPS antenna with the adapter Murata part no. MXHS83QE3000 mentioned in the documentation: https://infocenter.nordicsemi.com/index.jsp?topic=%2Fug_thingy91%2FUG%2Fthingy91%2Fhw_description%2Fhw_gps.html&cp=12_0_5_2_2 then you should be good.

You should see improvements using v1.4.0 or and external GPS antenna.

RE: Where to get the Thingy91 v1.4

pierrebaz — Tue, 28 Jul 2020 15:26:13 GMT

Thanks Martin,

Just ordered another one via RS, the datasheet is v1.4, fingers crossed!

AT+CFUN? :

AT+CFUN?+CFUN: 1OK
AT+CGSN=1+CGSN: "352656100876609"OK
AT+CGMINordic Semiconductor ASAOK
AT+CGMMnRF9160-SICAOK
AT+CGMRmfw_nrf9160_1.2.0OK
AT+CEMODE?+CEMODE: 2OKAT%XCBAND=?%XCBAND: (2,3,4,8,12,13,20,28)OK
AT+CMEE?+CMEE: 1OK
AT+CNEC?+CNEC: 24OK
AT+CGEREP?+CGEREP: 1,0OK
AT+CIND=1,1,1OK
AT+CEREG=2OK
AT+CEREG?+CEREG: 2,5,"CAE2","016ECC06",7OK
AT+COPS=3,2OK
AT+COPS?+COPS: 0,2,"20801",7OKAT%XCBAND%XCBAND: 20OK
AT+CGDCONT?+CGDCONT: 0,"IP","ibasis.iot","10.160.221.58",0,0OK
AT+CGACT?+CGACT: 0,1OKAT%CESQ=1OK
AT+CESQ+CESQ: 99,99,255,255,255,255OKAT%XSIM=1OKAT%XSIM?%XSIM: 1OK
AT+CPIN?+CPIN: READYOK
AT+CPINR="SIM PIN"+CME ERROR: 0

Been used to get a fix under 30secs with a Quectel chip... that's why I thought it wasn't working at all.

EDIT: got a fix after 1300 secs:

[00:21:37.149,597] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy[0m
[00:21:37.158,813] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19:     used,     healthy[0m
[00:21:37.168,090] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6:     used,     healthy[0m
[00:21:37.177,307] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  9:     used,     healthy[0m
[00:21:37.186,523] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking: 4 Using: 4 Unhealthy: 0[0m
[00:21:37.195,404] [0m<dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 1297[0m
[00:21:38.159,118] [0m<dbg> nrf9160_gps.gps_thread: PVT: Position fix[0m
[00:21:38.165,679] [0m<dbg> nrf9160_gps.stop_gps: Stopping GPS[0m
[00:21:38.178,314] [0m<inf> asset_tracker: GPS_EVT_PVT_FIX[0m
[00:21:38.183,929] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy[0m
[00:21:38.193,145] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19:     used,     healthy[0m
[00:21:38.202,362] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6:     used,     healthy[0m
[00:21:38.211,547] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  9:     used,     healthy[0m
[00:21:38.220,886] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking: 4 Using: 4 Unhealthy: 0[0m
[00:21:38.229,766] [0m<dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 0[0m
[00:21:38.237,945] [0m<dbg> nrf9160_gps.gps_thread: NMEA: Position fix[0m
[00:21:38.244,598] [0m<inf> asset_tracker: Position fix with NMEA data[0m
[00:21:38.251,342] [0m<inf> asset_tracker: GPS will be started in 900 seconds[0m

I've some passive GPS antennas but the connecctor doesn't seem to be a uFL, could you please recommend a compact external antenna compatible with the Thingy91 please?

EDIT 2:

Got a fix on a hot start after 258 secs, same position & static asset... quite long no?

[00:25:56.697,357] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19:     used,     healthy[0m
[00:25:56.706,573] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy[0m
[00:25:56.715,789] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  9:     used,     healthy[0m
[00:25:56.725,006] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4:     used,     healthy[0m
[00:25:56.734,313] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6:     used,     healthy[0m
[00:25:56.743,530] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking: 5 Using: 5 Unhealthy: 0[0m
[00:25:56.752,410] [0m<dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 258[0m
[00:25:57.707,824] [0m<dbg> nrf9160_gps.gps_thread: PVT: Position fix[0m
[00:25:57.714,508] [0m<dbg> nrf9160_gps.stop_gps: Stopping GPS[0m
[00:25:57.727,111] [0m<inf> asset_tracker: GPS_EVT_PVT_FIX[0m
[00:25:57.732,727] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV 19:     used,     healthy[0m
[00:25:57.741,943] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV 17:     used,     healthy[0m
[00:25:57.751,281] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  9:     used,     healthy[0m
[00:25:57.760,498] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  4:     used,     healthy[0m
[00:25:57.769,714] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking SV  6:     used,     healthy[0m
[00:25:57.779,022] [0m<dbg> nrf9160_gps.print_satellite_stats: Tracking: 5 Using: 5 Unhealthy: 0[0m
[00:25:57.787,902] [0m<dbg> nrf9160_gps.print_satellite_stats: Seconds since last fix 0[0m
[00:25:57.796,112] [0m<dbg> nrf9160_gps.gps_thread: NMEA: Position fix[0m
[00:25:57.802,764] [0m<inf> asset_tracker: Position fix with NMEA data[0m
[00:25:57.809,448] [0m<inf> asset_tracker: GPS will be started in 900 seconds[0m

RE: Where to get the Thingy91 v1.4

Martin Lesund — Tue, 28 Jul 2020 14:36:43 GMT

Hi Pierre,
You would need to check with the different distributors which version they have in stock:

https://www.nordicsemi.com/About-us/BuyOnline?search_token=nRF6943&series_token=nRF9160

When you tested the GPS did you have open sky conditions? e.g. no trees or windows that could block the GPS signals?
I assume you enabled the GPS operation (long press the button for a minimum of 10 seconds).

Would you mind sending the log output?

Best regards,
Martin L.