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Chengdu Ebyte Electronic Technology Co., Ltd
07H
write
08H
write
80H~
read-only
86H
(computing)
8.3 Factory Default Parameters
model
E90-DTU (400SL47) factory default parameter values: 00 00 00 62 00 17 03 00 00
number
Module
frequency
Model
E90-DTU
433.125M
(400SL47)
Hz
9 AT instructions
AT commands are used in the configuration mode. AT commands are divided into a total of three categories:
command commands, setup commands, and query commands;
Users can "AT+HELP=?" to query the AT instruction set supported by the module, and the baud rate used for AT
instruction is 9600 8N1;
When the input parameter exceeds the range, it will be limited, so please do not let the parameter exceed the range
to avoid unknown situation.
9.1 AT Instruction Table
command instruction
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3 reservations
2 1
0
CRYPT_
Key high byte (default 0)
H
CRYPT_
Key low byte (default 0)
L
PID
7 bytes of product information
address
signal path
0x0000
0x17
descriptive
reservations
interception of over-the-air wireless data
by similar modules.
internally
computational factor to transform the
encryption of the over-the-air wireless
signal.
airspeed
baud
2.4kbps
9600
typical example
E90-DTU(400SL47) User Manual
time of 2 seconds and will be forced
to issue when it reaches two seconds.
Write only, read returns 0
Used for user encryption to avoid
These two bytes will be used
by
the
module
7 bytes of product information
Serial Port
firing power
Format
8N1
46.±0.5dBm
Example Description
as
a
18
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