Ebyte E78-470LN22S User Manual page 23

Chengdu Ebyte Electronic Technology Co.,Ltd.
Precautions
Command Command
character Type
Test
command
Query
command
Parameter
DRX
Description
(Receive data)
Return value
description
Example
Precautions
Command Command
character Type
Test
command
Set
command
Parameter
Description
CPASSTHOUGH
MODE
(Transparent
transmission
mode)
Return value
description
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Enter the network first, then send data
Command Format
AT+DRX=?
AT+DRX?
Return value:
Length: 0 means empty packet;
Payload: Hexadecimal string data;
Ono exception in receiving data packet；
AT+DRX?
OK
Receive packets from the receive buffer and clear the receive buffer;
Command Format
AT+CPASSTHOUGHMODE
=?
AT+CPASSTHOUGHMODE
=[mode],[confirm],[nbtrials]
When mode is 1, it will enter the transparent transmission mode. Confirm
and nbtrials refer to the corresponding AT instructions. They are only valid
for this sending, and need to be reset after exiting.
OK indicates that the transparent transmission mode is on.
Description of return value in transparent transmission mode:
Frame Status bit
header 1byte
00 (not
connected)
01 (send
data)
02 (sending
timeout,
unconfirm
MSG does
A1 A1
not return)
04 (send
successfully
, receive the
server
return
value,
E78-470LN22S User Manual
response
+DRX:<Length>,<Payload>
OK
+DRX:<Length>,<Payload>
OK
response
+CPASSTHOUGHMODE:[mode],[confi
rm],[nbtrials]
OK
1byte 1byte
\ \
Sending
\
length
Sending
timeout \
times
Length of
data
Port number received (no
data sent
when 0)
nbyte
\
\
\
Distribute
data (this
bit is
invalid
when the
data length
22