Chengdu Ebyte Electronic Technology Co., Ltd E34-2G4H27D User Manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co., Ltd
12
7. Instruction format
In sleep mode
（
mode 3
：
M1=1, M0=1
）
, it supports below instructions.
(
Only support 9600 and 8N1 format when setting
)
No.
Instruction format
Description
1
C0+working parameters
C0 + 5 bytes working parameters are sent in hexadecimal format. 6 bytes in total and must
be sent in succession. ( Save the parameters when power-down )
2
C1 +C1 +C1
Three C1 are sent in hexadecimal format. The module returns the saved parameters and must
be sent in succession.
3
C2+working parameters
C2 + 5 bytes working parameters are sent in hexadecimal format. 6 bytes in total and must
be sent in succession. (Do not save the parameters when power-down )
4
C3 +C3 +C3
Three C3 are sent in hexadecimal format. The module returns the version information and
they must be sent in succession.
5
C4+ C4 +C4
Three C4 are sent in hexadecimal format. The module will reset one time and they must be
sent in succession.
7.1 Default parameters
Default parameter values
：
C0 00 00 18 00 40
Model
Frequency
Address
Channel
Air data rate
Baud rate
Parity
Transmitting
power
E34-2G4H27D
2.4GHz
0x0000
0x00
250kbps
9600
8N1
500mW
7.2 Reading operating parameters
Instruction format
Description
C1+C1+C1
In sleep mode
（
M0=1
，
M1=1
），
User gives the module instruction (HEX format): C1 C1 C1,
Module returns the present configuration parameters.
For example, C0 00 00 18 00 40.
7.3 Reading version number
Instruction format
Description
C3+C3+C3
In sleep mode
（
M0=1
，
M1=1
）
,
User gives the module instruction (HEX format): C3 C3 C3,
Module returns its present version number, for example C3 34 xx yy.
32 here means the module model (E34 series); xx is the version number and yy refers to the other module
features.
