MQTT PUB topic with message {"firmware_version":"221.0.2", "serial_number":"SN-001"}，how to do that?

IoT Modules LPWA Module
1

I try to send AT+QMTPUB=0,1,1,0,“v1/devices/me/attributes”,"{\“firmware_version\”:\“221.0.2\”, \“serial_number\”:\“SN-001\”}", the server will receive {\ only.

what is the correct message format if want to send message with quotes?

Thanks.

2

AT Commands (by default) quotes in the quotes is not used

3

AizIO, thanks for your answer.
Is there a way to do that?

4

in direct JSON format… no way … encode/decode base64

no idea … ask Quectel FAE

5

thank you very much…