Ebyte E31-433T17D, Руководство пользователя, Страница: 13 / 19

Chengdu Ebyte Electronic Technology Co.,Ltd. E31-433T17D User Manual
Copyright ©2012–2019 ， Chengdu Ebyte Electronic Technology Co.,Ltd.
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7.2 Working parameter reading
Instruction format Detailed description
C1+C1+C1
In sleep mode (M0=1, M1=1), a command (HEX format) is issued to the module serial port: C1
C1 C1, the module will return the current configuration parameters, such as: C0 00 00 1A 17 44.
7.3 Version number reading
Instruction format Detailed description
C3+C3+C3
In sleep mode (M0=1, M1=1), a command (HEX format) is issued to the module serial port: C3
C3 C3, the module will return the current configuration parameters, such as: C3 32 xx yy;the
second byte represents the frequency , if it’s 32,it is the applicable frequency of 433MHz, if it’s
38, it is the applicable frequency of 470MHz, if it’s 45, it is the applicable frequency of 868MHz;
If it’s 44, it is the applicable frequency of 915MHz; if it’s 46, it is the applicable frequency of
170MHz; xx represents the version number, yy represents other features of module.
7.4 Reset instruction
Instruction format Detailed description
C4+C4+C4
In sleep mode (M0=1, M1=1), a command (HEX format) is issued to the module serial port::
C4 C4 C4, the module will generate a reset; during the reset process, the module performs self-
test, AUX output low level, After the completion of reset, the AUX outputs high and the
module starts to work normally. At this time, Users can switch modes or initiate the next
instruction.
7.5 Parameter setting instruction
0 Name
Description
Note
0 HEAD
Fixed 0xC0 or 0xC2, which indicates that this frame data is a
control command
M ust be 0xC0 or C2
C0
：
The set parameters will be saved after
power down.
C2
：
The set parameters will not be saved
after power down.
。
1 ADDH High byte of module address (default 00H) 00H-FFH
2 ADDL Low byte of module address (default 00H) 00H-FFH
3 SPED
7 6 Serial parity bit
The serial port mode of the two
communication parties can be different
0 0
8N1
（
default
）
0 1 8O1
1 0 8 E1
1 1
8N1
（
equals to 00
）
5 4 3
TTL Serial port rate
（
bps
）
The baud rate of both parties can be
different.
The serial port baud rate has nothing to
do with the wireless transmission
parameters, and does not affect the
0 0 0 Serial port baud rate 1200
0 0 1 Serial port baud rate 2400
0 1 0 Serial port baud rate 4800
0 1 1
Serial port baud rate 9600
（
default
）