Have you tried to restart the device from the reset button while connected to the serial port tool? What is the output?
Also, make sure that you do not have any spaces in your at command.
Make sure that your gateway is properly connected to TTN and also that your credentials for connecting the application are set well. The problem is that your node doesn’t get join success so it goes to deep sleep, and that’s why you can’t send it an at command. The node will wake up after restart, but when you restart it and it doesn’t join it goes the same over and over again.
Hello
it works
Okay
FAIL The satellite signal cannot be found!
Battery voltage = 3.830 V
Acceleration (g) of X, Y, Z:
1.02,0.02,0.02
Gyro (degress / s) of X, Y, Z:
0.44.0.92.0.29
Magnetometer (uT) of X, Y, Z:
-44.70, -11.70, -67.20
Hi @rolanderuel,
Where is the node placed, indoor or outdoor? The buildings can cause a problem with the GPS signal. If it is inside, go outside where you have clear sky vision.
Also, it may help if you set the gps_timeout:120.
at+set_config=lora:app_key:8E6B188526FA608CF3028E2129CE3FBF
[LoRa]:Join retry Cnt:4
OK
at+set_config=lora:app_eui:70B3D57ED0038BF5
OK
at+set_config=lora:dev_eui:0072880EA27F57AF
OK
[LoRa]:Join retry Cnt:5
[LoRa]:Joined Failed!
OK Sleep
I tested with the default antenna of the card and with the antenna purchased from aliexpress this does not change the problem.
it can come from the antenna it’s possible
It is so strange that the gateway signal was lost dramatically if he just went outside to get a GPS fix.
Hi @rolanderuel, probably you can share with us the RSSI when your node is still working? Then what is your distance on your gateway?
Surely, you need to test the GPS outside to get your GPS fix. But how far are you from the gateway when you go outside to test the GPS?
Also, at times when you can’t connect to the gateway, try to check if the gateway is still online. We don’t know if it was accidentally unplugged, lost its connection to your network, etc.
Indeed rather odd, maybe a steel structured building, or a high rise so going outside means going down 10 floors and being on the other side of the building.
Or the antenna isn’t firmly plugged in - those pesky uF.L connectors can be tricky.
Hello
I think the problem is linked to the antenna because I tried to leave the antenna of the card by default it does not work.
and I changed the short and long timeout 50 and 120 nothing changed can be change the antenna connector on the card and the antenna