Error Code - Ebyte E104-BT53C3 User Manual

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Set instruction
Execute
instruction
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 format +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
Instruction not
1
present
2 Parameter error
The operation is
3
not allowed or failed
4 Operation error
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AT+[X]=<...>
AT+[X]
Error cause
Input instruction error
Input parameter error
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
The current role does not
support this directive
E104-BT53C3 Manual User
This command is used to set user
- defined parameters.
Used for instructions without
parameters, such as module reset.
solution
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.
Check the Parameter description of
each instruction table in 6.3 Instruction
Table.
Parameter may have been saved, please
try again or check "Description" for each
instruction table in 3.3 Instruction Table
Check the "Description" of each
instruction table in 6.3 Instruction Table
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