Ec200u-cn mqtt support

IoT Modules LTE Standard Module
1

Hello Good Day
I am on the project of uploading data using QUECTEL EC200U-CN on MQTT.
Following are the AT commands used.All goes well but for the final command

// 1. Ensure data is active
AT+CGDCONT=1,“IP”,“jionet”
AT+QIACT=1
AT+QIACT? // getting IP address ok

// 2. CONFIGURE MQTT BEFORE OPENING
AT+QMTCFG=“version”,0,4 // MQTT v3.1.1
AT+QMTCFG=“keepalive”,0,60 // " keepalive" not supported

// 3. Open MQTT network (not raw TCP!)
AT+QMTOPEN=0,“18.157.134.250”,1883

// WAIT until you see:
// +QMTOPEN: 0,0
// Do NOT send anything else during this time!

I see +QMTOPEN :0,0
But the final AT command returns Error, whatever the length of user name
// 4. Connect
AT+QMTCONN=0,“SARAVANAN_JIO” — at this command ERROR

ATI command returns the version :
ATI
Quectel
EC200U
Revision: EC200UCNAAR02A09M08
can you please help me with MQTT AT commands.should i upgrade the firmware?
Thank you

2

This is very confusing. I suggest you use the COM tool and manually execute the AT to try. Meanwhile, I have sent you the latest firmware.

3

Thank you for your reply.Where from i can download the latest firmware and how to upgrade?

4

I have sent it to your email.

5

can you please send it again. I do not see any link or attachment.

6

I have resent it to your email address. You can also check your spam folder or provide another valid email.