Module sim800a connect with Hivemq server

I’m using module sim800A connect with Hivemq verver but it’s error,
please help me

Blockquote
AT
OK

Call Ready

SMS Ready
AT+CREG? AT+CREG?
+CREG: 0,1

OK
AT+CGATT? AT+CGATT?
+CGATT: 1

OK
AT+CIPSTATUS AT+CIPSTATUS
OK

STATE: IP INITIAL
AT+CIPSHUTAT+CIPSHUT
SHUT OK
AT+CIPMUX=0 AT+CIPMUX=0
OK
AT+CSTT=“hivemq.com”,"","" AT+CSTT=“hivemq.com”,"",""
OK
AT+CIICR AT+CIICR
OK
AT +CIFSR AT +CIFSR
10.190.163.175
AT +CIPSTART=“TCP”,“broker.mqttdashboard.com”,"8000"AT +CIPSTART=“TCP”,“broker.mqttdashboard.com”,“8000”
OK

CONNECT OK
AT+CIPSEND AT+CIPSEND
GET / HTTP/1.1 GET / HTTP/1.1

ERROR

CLOSED

Are you sending a HTTP request to a MQTT broker :smiley:

Where? Can you just help me?

This is a HTTP GET request packet formation sent by TCP.
You should send a MQTT connect packet first and then the MQTT publish and subscribe packets. Check my youtube video on MQTT packet formation.