Chengdu Ebyte Electronic Technology Co., Ltd
Copyright ©2012–2019
,
Chengdu Ebyte Electronic Technology Co., Ltd
14
5. AT command
Note
:
keep module in wake-up mode before sending cooperation command.
5.1 Command instruction
There is no enter (\r) or LF(\n) required for AT command.
AT Command return info is ended with \r\n
(
except for return HEX
)
Command error response ERR=[NUM]
。
(
NUM is ACSII
)
5.2 Error code
NUM
Description
Error reason
Solution
0
Currently parsing AT
Gap between two AT commands is too
small
Proper delay is added between two
AT commands
1
Command does not exist
AT command string is incorrect
Check AT command character string
2
Incorrect parameter length
1
、
AT command length is incorrect
;
2
、
Length does not meet range
Check parameter
3
Invalid parameter
1 Parameter exceeds value range
Refer to command to check right
parameter
4
Air wakeup authentication failed
Incorrect password
1
、
Use correct configuration
password
;
2
、
Reset password via UART
5
Current device role, this command
is not supported
This command is forbidden in
current role
6
Unknown mistake
7
Save parameter error
8
AT command exists, but operation
not supported
Refer to command and operate again
9
Disconnected
Module is disconnected
10
MAC address does not exist
Added MAC address exists already
11
MAC list is full
MAC address bond exceeds the
maximum numbers
Delete invalid MAC
,
add again
12
MAC address does not exist
Deleted MAC does not exist
13
Connection failed
14
Exceeded the maximum number of
current connections
The current masters are all connected
1
、
Disconnect current devices
;
2
、
Modify maximum connection
numbers
;
15
Device does not exist
Error code list