Chengdu Ebyte Electronic Technology Co.,Ltd
E104-BT53C3 Manual User
Copyright ©2012–2020
,Chengdu Ebyte Electronic Technology Co.,Ltd
13
Set instruction
AT+[X]=<…>
This command is used to set user
- defined parameters.
Execute
instruction
AT+[X]
Used for instructions without
parameters, such as module reset.
Notes:
Serial configuration ends with carriage return (\r) and line feed (\n) (APP configuration does not bring
back car line feed);
The return result for both configuration modes ends with (\r) and (\n), and is not explained later;
The serial port baud rate is 115200 by default, 8 data bits, 1 stop bit, and no verification;
The command parameters are in ASCII format;
The command error response ERR:[NUM], [NUM] see 6.2 Error codes;
In the AT instruction, <> indicates optional parameters, and [] indicates required parameters; If all
parameters of the AT directive are optional, fill in any of the parameters, such as AT+ADV=,,20;
The instruction section is case insensitive (excluding the "APP Configuration authentication"
instruction);
If the module is in configuration mode or transparent mode, you can configure it using the APP;
Some commands do not support APP configuration, such as "Set extended broadcast", "AT command send data",
"master role scan", "Enable observer" and other AT commands that require serial port coordination;
All AT commands cannot contain invisible characters such as Spaces and tabs.
6.2 Error code
NUM
Description
Error cause
solution
1
Instruction not
present
Input instruction error
Read the 6.3 command sheet, for
example, set broadcast parameters, and
compare the command "AT+ADV" character by
character to prevent typing or word
spelling resulting in incorrect
characters.
2
Parameter error
Input parameter error
Check the Parameter description of
each instruction table in 6.3 Instruction
Table.
3
The operation is
not allowed or failed
Related functions (such as
connection and parameter setting)
fail. For example, if the AT+SCAN
command is not executed when the
module is powered on, run
AT+CONNECT=0
Parameter may have been saved, please
try again or check "Description" for each
instruction table in 3.3 Instruction Table
4
Operation error
The current role does not
support this directive
Check the "Description" of each
instruction table in 6.3 Instruction Table