User Manual

Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co.,Ltd.
15
7.4 Reset command
Instruction format
Description
C4+C4+C4
In sleep mode（M0=1，M1=1）,
User gives the module instruction (HEX format): C4 C4 C4, the module resets for one time.
During the reset process, the module will conduct self-check, AUX outputs low level. After reset
completing, the AUX outputs high level, then the module starts to work regularly which the
working mode can be switched or be given another instruction.
7.5 Parameter setting command
No.
Item
Description
Remark
0
HEAD
Fix 0xC0 or 0xC2, it means this frame data is control
command
 Must be 0xC0 or 0xC2
C0: Save the parameters when
power-down
C2: Do not save the parameters when
power-down
1
ADD
H
High address byte of module
（the default 00H）
00H-FFH
2
ADDL
Low address byte of module
（the default 00H）
00H-FFH
3
SPED
7
6
UART parity bit

UART mode can be different
between communication parties
0
0
8N1 (default)
0
1
8O1
1
0
8 E1
1
1
8N1 (equal to 00)
5
4
3
TTL UART baud rate（bps）
 UART baud rate can be different
between communication parties
 The UART baud rate has nothing to
do with wireless transmission
parameters & won’t affect the
wireless transmit / receive features.
0
0
0
1200
0
0
1
2400
0
1
0
4800
0
1
1
9600 (default)
1
0
0
19200
1
0
1
38400
1
1
0
57600
1
1
1
115200
2
1
0
Air data rate（bps）
 The lower the air data rate, the
longer the transmitting distance,
better anti-interference performance
0
0
0
0.3k
0
0
1
1.2k