Neoway M590E - Receiving UDP Data: +UDPRECV; Closing UDP Connection: +UDPCLOSE

Neo_M590E V1 GPRS Module AT Command Set
Copyright © Neoway Technology Co., Ltd
33
+UDPSEND:0,10
AT+UDPSEND=0,2800
+UDPSEND:Data length error
2800-byte data fails to be sent on socket 0
because data length exceeds the limit.
Remarks

Ensure that the UDP connection has been set up before sending UDP data.

Before > is 0x0d, 0x0a.
3.8 Receiving UDP Data: +UDPRECV
Description
To receive UDP data
Format
<CR><LF>+UDPRECV:<n>,<length>,<data><CR><LF>
Parameter
<n>: Socket number, ranging from
0
to
5
<length>: The length of the data received
<data>: The data received
Add
0x0d 0x0a
to the end of the data. You can identify the end based on <
length
>.
Return Value
See the Example.
Example
+UDPRECV: 0,10,1234567890
10-byte data is successfully received on
socket 0. The data is 1234567890.
Remarks
N/A
3.9 Closing UDP Connection: +UDPCLOSE
Description
To close the UDP connection
Format
AT+UDPCLOSE=<n><CR>
Parameter
<n>: Socket number, ranging from 0 to 5
Return Value
If the value of
<n>
is illegal, the module returns:
+UDPCLOSE: ERROR
.
Otherwise, the module returns
+UDPCLOSE:<n>,OK
.
Example
AT+UDPCLOSE=1
+UDPCLOSE: 1,OK
The TCP connection on socket 1 is closed
successfully.
AT+UDPCLOSE=2
+UDPCLOSE:ERROR
Socket number error
+UDPCLOSE:0,Link Closed
The TCP connection is closed.
The server sends UDP connection closing
command or the network encounters
abnormality or weak signals.
Remarks
N/A