Chengdu Ebyte Electronic Technology Co,;Ltd
E70-900TxxSx_user manual
Copyright ©2012–2023
，
Chengdu Ebyte Electronic Technology Co,;Ltd
23
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 Parameter
Default parameter values
：
C0 00 00 18 44 1C
Model
Frequency
Address
Channel
Air data rate
Baud rate
Parity
Transmitting
power
E70-900T30S
868MHz
0x0000
0x0E
2.5k
9600
8N1
1W
E70-900T14S
868MHz
0x0000
0x10
2.5k
9600
8N1
25mW
E70-900T14S2
868MHz
0x0000
0x10
2.5k
9600
8N1
25mW
7.2 Reading Operating Parameters
Instruction format
Description
C1+C1+C1
In configuration mode
（
M0=1, M1=1, M2=0
），
User gives the module instruction (HEX format): C1 C1 C1,
Module returns the present configuration parameters.
For example, C0 00 00 18 4E 1C.
7.3 Reading Version Number
Instruction format
Description
C3+C3+C3
In configuration mode
（
M0=1, M1=1, M2=0
）
,
User gives the module instruction (HEX format): C3 C3 C3,
Module returns its present version number, for example C3 0071 XX1 XX2 XX3 XX4 XX5.
70 here means the module model (E70 series); xx1 is the version number and XX2 XX3 XX4 XX5
refers to the other module features.
7.4 Reset Instruction
Instruction format
Description
C4+C4+C4
In configuration mode
（
M0=1, M1=1, M2=0
）
,
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 completed,
the AUX outputs high level, then the module starts to work regularly when the working mode can be
switched or be given another instruction.
