Quectel BG96 TCP/IP

LPWA Module Series
BG96 TCP/IP Application Note
BG96_TCP/IP_Application_Note 39 / 52
3.3.2. Send Data in Buffer Access Mode
3.3.3. Receive Data from Remote Server in Buffer Access Mode
AT+QISEND=0 //Send variable-length data.
>test1<ctrl+Z>
SEND OK //SEND OK does not mean the data has been sent to the server
successfully. The host can query whether the data has reached the
server via AT+QISEND=0,0.
AT+QISEND=0,4 //Send fixed-length data and the data length is 4 bytes.
>test
SEND OK
AT+QISEND=0,0 //Query the length of sent data, acknowledged data and
unacknowledged data.
+QISEND: 9,9,0
OK
AT+QISENDEX=0,"3132333435" //Send Hex string data.
SEND OK
AT+QISEND=0,0 //Query the length of sent data, acknowledged data and
unacknowledged data.
+QISEND: 14,14,0
OK
+QIURC: "recv",0 //<connectID> 0 has received data.
AT+QIRD=0,1500 //Retrieve the data. The maximum length of data to be retrieved is 1500
bytes.
+QIRD: 5 //The length of actually retrieved data is 5 bytes.
test1
OK
AT+QIRD=0,1500
+QIRD: 0 //No data in buffer.
OK
AT+QIRD=0,0 //Query the total length of received data, including read and unread data.
+QIRD: 5,5,0
OK