wklenk
commented
6 years ago Sorry I never tried out the GPS functionality, but as you already read at the dragino.com site, it seems somehow complicated to get it working on version 3 of RPi.
For example "join": yes , I have filled in /examples/join/main.c with our three TTN codes. Device is set as OTAA as it should.
It is kind of hard to do remote diagnosis, but I will try:
- The LMIC library randomly chooses one of the available transmission frequencies, and also tries to communicate using not only one spreading factor SF. For this reason, it is crucial that you have a fully fledged LoRaWAN gateway that supports the full LoRaWAN standard. If you just have a single-channel gateway with limited functionality, the communication probably won't work (without further modifications). To go on with diagnosis, you should please tell we want brand and type of gateway you are using.
- Hopefully you took into regards that - when taking the "Application Router ID" and "Unique Device ID" you really have to use the right byte order, which is "least significant byte first" for these two configuration settings. I think the UI at TTN lets you choose different representations of these values when you copy and paste them from there. If you like, you can send my screenshots from both your code (the part where you define these values) and from TTN. My email adress is wolfgang.klenk at gmail.com.
JordyGit
xiphias256
Hello,
For school project we have to make a sort of gps tracker with raspberry pi 3 model b and dragino lora/gps hat (v1.1). We have never used this before so everything is new for us.
Until now i tried to complete http://wiki.dragino.com/index.php?title=Getting_GPS_to_work_on_Raspberry_Pi_3_Model_B to set up the NMEA sentences from gps sensor. Until now i have only had empty NMEA sentences (with sudo cat /dev/ttyS0 in terminal) for hours with everything placed next to my window. (Maybe i use wrong antenna's, teachers gave this to use separately, otherwise there is nothing written on the antennas.) But between the empty ,,,,'s the time and date are perfectly correct. (does that mean something?)
Then i have tried for lora a few githubs, none of them did work without Failures. Except yours does, but after trying connecting for a few hours i still could not Join (didn't see JOINED, it's in a loop of trying to connect (EV_TXSTART,sending,retrieving,waiting,retrieving,waiting,EV_TXSTART,sending,...)) . Example "hello" does work fine. For example "join": yes , I have filled in /examples/join/main.c with our three TTN codes. Device is set as OTAA as it should.
For now we have soldered pin 22 on 24 because it's needed mentioned at http://wiki.dragino.com/index.php?title=Lora/GPS_HAT , for now we also have connected pin 16 to and 18 to because they did that to. (cut these connections doesnt change something to gps or lora connection, have tried that :) )
I have been trying to connect to lora from my house, which is at straight line at max 4km away from my school building, where they have a lorawan antenna at the top of the 7the floor.
I hope you could help us with this? You are the one who knows the best how this works because you made it. We would really appriciate it.
Kind Regards Jordy from University KULeuven campus Brugge (Belgium)