Ebyte E30-T100S2, User Manual

Page: 13 / 17

SI4438 Wireless Module User Manual of E30 Series Modules
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd. 13 / 17
7.1 Default Parameter
Default parameter values：C0 00 00 18 50 44
Model Frequency Address Channel Air data rate Baud rate Parity
Transmitting power
E30-TTL-100 433MHz 0x0000 0x50 1kbps 9600 8N1 100mW
Default parameter values：C0 00 00 18 50 44
Model Frequency Address Channel Air data rate Baud rate Parity Transmitting power
E30-T100S2 433MHz 0x0000 0x50 1kbps 9600 8N1 100mW
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 1A 17 44.
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 30 xx yy.
30 here means the module model (E30 series); xx is the version number and yy refers to the other module
features.
7.4 Reset Instruction
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 Instruction
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 ADDH
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 8E1
1 1 8N1
5 4 3 TTL UART baud rate（bps）

UART baud rate can be different between