The MQTT simple sample code for the NRF9160DK cannot publish to Soracom Beam.

[sasasa]

件名の通り、NRF9160DK のシンプルな MQTT サンプルコードを元に、Soracom Beam 経由で別のクラウド環境に MQTT データを送信しようとしていますが、苦戦しています。

さまざまな調整と調査を試みましたが、次の問題が発生しています。

*** Booting Zephyr OS build v3.3.99-ncs1 ***
[00:00:00.253,051] <inf> mqtt_simple: The MQTT simple sample started
[00:00:00.253,082] <inf> mqtt_simple: Disabling PSM and eDRX
[00:00:00.253,082] <err> lte_lc: nrf_modem_at_printf failed, reported error: -1
[00:00:00.253,112] <err> lte_lc: Failed to disable eDRX, reported error: -1
[00:00:00.253,112] <inf> mqtt_simple: LTE Link Connecting...
[00:00:00.253,143] <err> lte_lc: Failed to get system mode, error: -1
[00:00:00.253,143] <err> lte_lc: Could not get current system mode, error: -14
[00:00:00.253,173] <inf> mqtt_simple: Failed to establish LTE connection: -14
[00:00:00.253,173] <inf> mqtt_simple: Retrying in 120 seconds

SORACOM SIMがATモードで接続できることを確認しました。シンプルなMQTTサンプルコードのどの部分を修正すればよいか、また、役立つ関連情報があれば教えていただけますか？

[sasasa]

Thank you for your extensive support.

I've managed to modify the modem settings on the nrf9160DK and successfully get it online using a Soracom LTE-M SIM.

Thank you very much.

The next challenge I'm facing is configuring the Soracom Beam broker without using TLS.

Would you be able to provide any sample code or helpful resources for publishing to Soracom Beam via MQTT?

[Elfving]

Great! Glad to hear it.

Unfortunately I am not that familiar with Soracom Beam and what it requires. I see that there is documentation from Soracom on it here though, along with a configuration example. It might be an idea to contact their support as well. Are you having any particular issues with it?

Regards,

Elfving