MQTT with Sim 7000C NB-IoT Network
najab.haider 2020-12-08 17:37:14 2958 Views2 Replies I'm trying to use MQTT on Sim 7000C with NB-IoT Network
I can successfully configured my network with this command
AT+CNACT=1,"apn"
and get IP address with this command
AT+CNACT?
Then I'm trying to set parameters of MQTT like broker, port, user, password with these command
AT+SMCONF="URL","m21.cloudmqtt.com:19279"
AT+SMCONF="USERNAME", "user"
AT+SMCONF="PASSWORD", "pass"
But when I trying to establish MQTT connection with my broker with this command
AT+SMCONN
Module stuck and gives nothing.
What I'm doing wrong please any suggestion for me doing this?
Module firmware version: 1351B05SIM7000C
I can successfully configured my network with this command
AT+CNACT=1,"apn"
and get IP address with this command
AT+CNACT?
Then I'm trying to set parameters of MQTT like broker, port, user, password with these command
AT+SMCONF="URL","m21.cloudmqtt.com:19279"
AT+SMCONF="USERNAME", "user"
AT+SMCONF="PASSWORD", "pass"
But when I trying to establish MQTT connection with my broker with this command
AT+SMCONN
Module stuck and gives nothing.
What I'm doing wrong please any suggestion for me doing this?
Module firmware version: 1351B05SIM7000C
2021-04-28 13:36:59 Hi,
When I used this https://www.emqx.io/mqtt/public-mqtt5-broker public MQTT Broker with these set of commands without any Username and Password it worked for me.
But I can't use this in my production I don't have any option to use any broker without Username and Password authentication in my production.
Here is my commands with responses.
AT+SMSTATE?
+SMSTATE: 0
OK
AT+CSQ
+CSQ: 22,99
OK
AT+CGDCONT=1,"IP","APN"
OK
AT+CNACT=1,"APN"
OK
+APP PDP: ACTIVE
AT+SMCONF="URL","broker.emqx.io:1883"
OK
AT+SMCONF="CLIENTID","Device001"
OK
AT+SMCONF?
+SMCONF
CLIENTID: "Device001"
URL: broker.emqx.io:1883
KEEPTIME: 60
USERNAME: ""
PASSWORD: ""
CLEANSS: 0
QOS: 0
TOPIC: ""
MESSAGE: ""
RETAIN: 0
OK
AT+SMCONN
OK
AT+SMSUB="update",1
OK
AT+SMPUB="update","5",1,1
hello
OK
+SMSUB: "update","hello"
AT+SMPUB="update","8",1,1
HI Najaf
OK
+SMSUB: "update","HI Najaf" najab.haider
When I used this https://www.emqx.io/mqtt/public-mqtt5-broker public MQTT Broker with these set of commands without any Username and Password it worked for me.
But I can't use this in my production I don't have any option to use any broker without Username and Password authentication in my production.
Here is my commands with responses.
AT+SMSTATE?
+SMSTATE: 0
OK
AT+CSQ
+CSQ: 22,99
OK
AT+CGDCONT=1,"IP","APN"
OK
AT+CNACT=1,"APN"
OK
+APP PDP: ACTIVE
AT+SMCONF="URL","broker.emqx.io:1883"
OK
AT+SMCONF="CLIENTID","Device001"
OK
AT+SMCONF?
+SMCONF
CLIENTID: "Device001"
URL: broker.emqx.io:1883
KEEPTIME: 60
USERNAME: ""
PASSWORD: ""
CLEANSS: 0
QOS: 0
TOPIC: ""
MESSAGE: ""
RETAIN: 0
OK
AT+SMCONN
OK
AT+SMSUB="update",1
OK
AT+SMPUB="update","5",1,1
hello
OK
+SMSUB: "update","hello"
AT+SMPUB="update","8",1,1
HI Najaf
OK
+SMSUB: "update","HI Najaf"
najab.haider 2021-02-24 09:53:11 I think you have used the wrong AT commands. I have not seen these commands in the manual or wiki. 347945801
347945801 