AtomDTU NB-IoT

Felix22

Juhuuuu !!
It works !
More Information and the solution will follow...

@felmue : many thanks

Felix

felmue

Hello @Felix22

I am happy to hear you got it working.

Thanks
Felix

Felix22

now, i have a new problem.
The mqtt broker test.mosquitto.test is working with my Blockly but my own Broker on my Server at home in a Docker container is not available from AtomDTU. But with a Internet Test Tool, it is working ( https://testclient-cloud.mqtt.cool/ )

0_1708530061363_13981671-0c96-43c5-9d60-043ca4ba25b6-grafik.png

I see no difference...
The orange part is working and the tree other is not working

Domainname
IP-Address
Dyndns
not working...
test.mosquitto.org is working fine.

felmue

Hello @Felix22

hmm, that's a tricky one. Now that your modem gets an IP address; have you tried the official MQTT blocks?

Thanks
Felix

Felix22

you mean the blocks at "Fortgeschritten" / MQTT ?
over there it connects over Wlan/Wifi...
Is there a MQTT-Block how i can say the RX and TX pin ?

felmue

Hello @Felix22

no, I meant in UIFlow1 with M5Atom selected. Then it's under Base - DTU - NB-IoT - MQTT. There even is an MQTT example.

Thanks
Felix

Felix22

this hangs by the "Init NB-IoT DTU" Blockly if you have not Load the Unit NB-IoT.
But with the NB-IoT-Unit and the correct RX/TX Pin's it works fine.

0_1708613718672_fedaa32a-bb09-4ea0-932d-d74fcb0bee74-grafik.png

Do you also use the Atom DTU NB-IoT ?

felmue

Hello @Felix22

not exactly; I use an C-Back NB-loT Global version (SIM7020G) which I connected to an M5Atom the same way it is connected in the AtomDTU NB-IoT.

And no, I do not need to add the NB-IoT unit for the Init NB-IoT DTU block to work.

Thanks
Felix

felmue

Hello @Felix22

I have successfully connected, subscribed and published to the following free MQTT brokers: mqtt.m5stack.com, broker.mqtt.cool, test.mosquitto.org, broker.hivemq.com, broker.emqx.io, and public.mqttserver.eu using below UIFlow:

Thanks
Felix

Felix22

Do you have a list with the Status Codes ?
Signal Qualität: 16
MQTT-Connection: 0
Network-Registration: 7
GPRS network registration

felmue

Hello @Felix22

sure, here you are:

Signal Quality: 17
MQTT-Connection: 0
Network Registration: 7
GPRS Network Registration: 5

and when connected to MQTT broker

MQTT-Connection: 1

Thanks
Felix

Felix22

Hello Felix
By the error code I meant what the individual numbers mean.
Each code 0 to x
Do you have a code list ?
Greeting
Felix

felmue

Hello @Felix22

no, sorry, I don't have such a list. But if the error code is from an AT command you should be able to find its meaning from the AT command document linked on the product page.

Thanks
Felix