Chengdu Ebyte Electronic Technology Co,;Ltd E32-868T20D user manual
Copyright ©2012–2019
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
12
Receiving
In mode 2, it is required the data transmitter works in mode 1.
The wireless module monitors the preamble code at regular time.
Once it gets the preamble code, it will remain as receiving status and waiting for the completion of receiving the entire
valid data package.
Then the AUX outputs low level, 5ms later the serial port is open to transmit received wireless data through TXD.
Finally, AUX outputs high level after process completed.
The wireless module stays in “power-saving – monitoring” working status (polling).
By setting different wake-up time, the module will have different receiving response delay (2s in maximum) and average
power consumption (30uA in minimum).
The user needs to achieve a balance between communication delay time & average power consumption.
6.5 Sleep mode (mode 3)
When M1=1, M0=1, module works in mode 3
Transmitting
N/A
Receiving
N/A
Parameter setting
This mode can be used for parameter setting. It uses serial port 9600 & 8N1 to set module working parameters through
specific instruction format. (pls refer to parameters setting for details)
Notes
When the mode changes from stand-by mode to others, the module will reset its parameters, during which the AUX
keeps low level and then outputs high level after reset completed. It is recommended to check the AUX rising edge for
user.
7 Command format
In sleep mode
（
Mode 3
：
M1=1, M0=1
）
, it supports below instructions on list.
(Only support 9600 and 8N1 format when setting)
No.
Instruction format
Illustration
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
( Save the parameters when power-down )
3
C2+working
parameters
Three C1 are sent in hexadecimal format. The module returns the saved
parameters and must be sent in succession.
4
C3+C3+C3
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)
5
C4+C4+C4
Three C3 are sent in hexadecimal format. The module returns the version
information and they must be sent in succession.
7.1 Default parameters
type
Default parameter values
：：
C0 00 00 1A 17 44
