AT Command for Communication with AWS

Hello All,

I am Using EC21 LTE GSM/GPRS with STM32 .

I need help regarding AT Command to Communicate with AWS MQTT.

  1. How Can i Store AWS CA cerificate and All other Certificate Into RAM using AT Command ?
  2. in STM32 Code how can i define Certificate to communicate with AWS ?
  3. if anyone have Example code with STM32 that is very helpful for me
1 Like

Hello aditya1127, thank you for your question
You can use the AT+QFUPL=“RAM:cacert.pem”,1758,100 command to store CA and other certificates in RAM. Please refer to the attached document for the specific command usageQuectel_LTE_Standard_MQTT_Application_Note_V1.2.pdf (685.3 KB) . If you use a CA certificate, it means that you are using SSL encryption. A copy of the SSL usage document is attached for your reference.Quectel_EC2x&EG9x&EM05_SSL_AT_Commands_Manual_V1.0.pdf (317.1 KB)
Regarding sample code, we do not provide STM32 sample code.
If you have any questions, please feel free to ask on Quectel Forums, thank you.

Hi and Good Day @aditya1127 ,

How’s the result of this issue, do you successfully achieve it

Interested to know more on the result of the SSL connection.