How to set MQTT parameters

1. Settable Parameters


Sleep	--- *DEBUG -->	Debug	--- *ADMIN -->	Admin
mode	<-- *SLEEP ---	mode	<-- *DEBUG ---	mode


# in Sleep mode

Switch to debug mode	command: *DEBUG		response: Debug mode ok

The fault mode of the device is sleep mode, which is the normal working mode. Other modes are parameter setting related.

# in Debug mode

			command				response
			-------				--------
Set MQTT protocol	#NB_MQTT
				Please set IP or domain name at the same time

Set IP			#IP=125.227.248.178,1883	OK IP=125.227.248.178,1883i
				Static IP is strongly recommended

Set domain name		#MQTT_IP=mqtt.zc-sensor.com,1883	OK MQTT_IP:mqtt.zc-sensor.com,1883
				You should write in either IP or domain name; not both.

Set DNS			#DNS=218.4.4.4			Set DNS as: 218.4.4.4
				Optional, only useful when domain name connection is not smooth.

Set client ID		#ClientID=123456789		OK DeviceID=123456789 Username= password=
				It is not recommended to set these three parameters unless it is necessary.
				By default, the ClientID is the IMEI, and the user name and password are empty.
Set user name		#Username=test			OK DeviceID=123456789 Username=test password=
Set password		#Password=123456		OK DeviceID=123456789 Username=test password=123456

Set heartbeat interval	#HR300				Heartbeat interval: 300			300/60=5mins

Set NB network access timeout	#POWERTIME=300		NB network access trial time after power-on: 300 seconds
							Default value is 600 seconds.

Set sleep mode		*SLEEP				Sleep mode ok			Exit debug mode

Set admin mode		*ADMIN				Admin mode ok			Enter admin mode to set APN



# in Admin mode

Set APN			AT*MCGDEFCONT="IPV4V6",""nbiot"	*MCGDEFCONT: "IPV4V6",""nbiot"

Read APN settings	AT*MCGDEFCONT?			*MCGDEFCONT: "IPV4V6",""nbiot"

Read SIM card number	AT*MICCID			*MIICCID: 898601177231000559705

Read device IMEI	AT+CGSN=1			+CGSN: 869858033594491

Check if device is connectted to NB network
			AT+CEREG?			+CEREG: 0,1	1 = network access successful, 2 = searching for network

Read current NB network band
			AT*MBAND?			*MBAND: 8

Set debug mode		*DEBUG				Debug mode ok		Exit admin mode