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7.2 Working parameter reading
Instruction format
C1+C1+C1
7.3 Version number reading
Instruction format
C3+C3+C3
7.4 Reset instruction
Instruction format
C4+C4+C4
7.5 Parameter setting instruction
0
Name
0
HEAD
1
ADDH
2
ADDL
3
SPED
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In sleep mode (M 0=1, M 1=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.
In sleep mode (M 0=1, M 1=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 433M Hz, if it's
38, it is the applicable frequency of 470M Hz, if it's 45, it is the applicable frequency of 868M Hz;
If it's 44, it is the applicable frequency of 915M Hz; if it's 46, it is the applicable frequency of
170M Hz; xx represents the version number, yy represents other features of module.
In sleep mode (M 0=1, M 1=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.
Description
Fixed 0xC0 or 0xC2, which indicates that this frame data is a
control command
High byte of module address (default 00H)
Low byte of module address (default 00H)
7
6
0
0
0
1
1
0
1
1
5
4
3
0
0
0
0
0
1
0
1
0
Serial port baud rate 9600（default）
0
1
1
Detailed description
Detailed description
Detailed description
Serial parity bit
8N1（default）
8O1
8 E1
8N1（equals to 00）
TTL Serial port rate（bps）
Serial port baud rate 1200
Serial port baud rate 2400
Serial port baud rate 4800
E31-433T17D User Manual
Note
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.。
00H-FFH
00H-FFH
The serial port mode of the two
communication parties can be different
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
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