node RAK811 does not connect to TTN

nicolasrak · September 13, 2019, 7:32am

I don’t understand what happens with the node, it can’t connect.

When connected to the TTN the device address is changed

velev · September 13, 2019, 7:34am

Hello @nicolasrak
It is normal device address to be changed every time in OTAA join. Please give print screen on RAK serial tool after command at+get_config=lora:status

Regards
Todor Velev

nicolasrak · September 13, 2019, 8:52am

Ok.

Look @velev

velev · September 13, 2019, 9:12am

Please set all 3 keys from TTN (dev_eui, app_eui, app_key) to node and try rejoin.
And reset the frame counter in ttn device overview.

nicolasrak · September 13, 2019, 12:09pm

How I can reset the frame counter ?

velev · September 13, 2019, 12:51pm

From TTN page of the devices.

nicolasrak · September 13, 2019, 1:10pm

ok

I update the firmware…

velev · September 13, 2019, 1:23pm

Great! Now set the dev_eui, app_eui and app_key from TTN to node. Then rejoin.

nicolasrak · September 13, 2019, 5:30pm

Now I could connect to the TTN, now I have trouble sending the data …

Fomi · September 16, 2019, 1:52am

Hi @nicolasrak,

You can send a new packet only when you see “[LoRa]: Confirm data send OK” which means the last TX window is closed and you can open a new TX window.

nicolasrak · September 16, 2019, 11:50pm

Its good!! THANKS…

I have other problem…

what is the AT command to receive the Downlink in the RAK module?

Fomi · September 17, 2019, 1:09am

Hi @nicolasrak,

There is no AT command for receiving the downlink data because RAK811 can receive the downlink data automatically.

nicolasrak · September 17, 2019, 1:26am

The information comes to TTN, but I want to see it on the device via serial port

velev · September 17, 2019, 1:34pm

Hello @nicolasrak
When you schedule downlink from TTN it will be received when the node sends next uplink.
That is how Class A of LoRaWAN work.

You receive after you send. And as you see in print screen data is in the RAK serial tool.

Regards
Velev

nicolasrak · September 17, 2019, 2:10pm

How can I do it then to receive Downlink continuously?

velev · September 18, 2019, 1:11pm

You can do this in Class C , but TTN do not have it i think. You can use loraserver.io

bert · September 28, 2019, 6:46pm

Good morning,

I have the same link problem:

I have a gateway [rak831 + RPP2] configured and online.
The rak811 wisnode, update version V3.0.0.4 was configured according to the guide [ Get Start with RAK811 WisNode-LoRa V3.0.0.4 ], once the link is required it does not support it.

I have done the following:

A- I have followed the recommendations in this thread, without any change.

b. I have observed that in the linking process the RX LED [presents a change of state with each request].

C. The TX led [always remains in state [0]

Note: I send the device status.

velev · October 3, 2019, 9:30am

You have problem with TTN or the Gateway itself? What is the config of gateway TTN or LoRaServer (or other) ?
Is the gateway is set to US915 band?
The topic is for Class C , you are using Class A according to status.

Regards
Todor

bert · October 6, 2019, 9:01am

Hi velev,
my link to the TTN server is connected, my problem is in the link rak811-NODE that is rejected, I send configuration [TTN / NODE] according to class a.
Okay, the gateway is configured for US915, what is not clear to me is your comment regarding class C. The attempt to join the node to the network is negative.

velev · October 6, 2019, 2:15pm

Hi, can yo try this firmware https://downloads.rakwireless.com/en/LoRa/WisNode/Firmware/RUI_RAK811_V3.0.0.5.H_Release.rar

and give feedback.

PS: Which gateway model do you use?