<![CDATA[How to connect the COM.X NB IoT and use is for mqtt or other requests]]>I have an Core2 and the COM.X NB IoT with an unlocked SIM card for a data connection. Now I would setup an wifi access point and for internet connectivity I would use the 3G connection.

How can I use this module in UI Flow to get the connection .. for example to connect to an mqtt broker like I would do when the Core2 is connected to wifi? And maybe all other connected wifi clients can directly communicate with the internet and.

]]>https://community.m5stack.com/topic/4655/how-to-connect-the-com-x-nb-iot-and-use-is-for-mqtt-or-other-requestsRSS for NodeMon, 15 Jun 2026 20:42:22 GMTTue, 27 Sep 2022 17:50:01 GMT60<![CDATA[Reply to How to connect the COM.X NB IoT and use is for mqtt or other requests on Tue, 08 Nov 2022 00:28:31 GMT]]>Hello @mchott

in my experience a data SIM (for smartphones, LTE routers, etc.) is not good enough for NB-IoT. You will need a SIM card specifically for NB-IoT plus the NB-IoT service needs to be offered by the provider in your region.

Thanks
Felix

]]>https://community.m5stack.com/post/19232https://community.m5stack.com/post/19232Tue, 08 Nov 2022 00:28:31 GMT<![CDATA[Reply to How to connect the COM.X NB IoT and use is for mqtt or other requests on Mon, 07 Nov 2022 15:17:52 GMT]]>The first thing is the mismatch between the dip switch setting and the real setting for TX/RX with the Core2. If you have the Core2 TX:14 and RX:13 is the correct connection. After that I "Check module status" with success and "true". But the Network registration and GPRS network registration is 0 and the signal quality is 99. After that I tested my SIM in other devices and this is not the problem.

But there is no connection. Still an red led and an blinking blue led.

]]>https://community.m5stack.com/post/19230https://community.m5stack.com/post/19230Mon, 07 Nov 2022 15:17:52 GMT<![CDATA[Reply to How to connect the COM.X NB IoT and use is for mqtt or other requests on Tue, 27 Sep 2022 19:13:20 GMT]]>Hello @mchott

in UIFlow 1.10.x have you tried the MQTT blocks under Modules - COM.X - NB-IoT?

Thanks
Felix

]]>https://community.m5stack.com/post/18743https://community.m5stack.com/post/18743Tue, 27 Sep 2022 19:13:20 GMT