Sleep Mode (Mode 3); Command Format; Default Parameters; Reading Operating Parameters - Ebyte E30 Series User Manual

Si4438 490mhz 100mw dip wireless module
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Chengdu Ebyte Electronic Technology Co,;Ltd
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
Receiving
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
This mode can be used for parameter setting. It uses serial port 9600 & 8N1 to set module working parameters
setting
through specific instruction format. (pls refer to parameters setting for details)
When the mode changes from stand-by mode to others, the module will reset its parameters, during which the
Notes
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.
1
2
3
4
5
Copyright ©2012–2019,Chengdu Ebyte Electronic Technology Co,;Ltd
Instruction
format
C0+working
C0 + 5 bytes working parameters are sent in hexadecimal format. 6 bytes in total and
parameters
must be sent in succession, ( Save the parameters when power-down ).
C1+C1+C1
( Save the parameters when power-down )
Three C1 are sent in hexadecimal format. The module returns the saved parameters and
C2+working
must be sent in succession.
parameters
C2 + 5 bytes working parameters are sent in hexadecimal format. 6 bytes in total and
C3+C3+C3
must be sent in succession. ( Do not save the parameters when power-down )
Three C3 are sent in hexadecimal format. The module returns the version information
C4+C4+C4
and they must be sent in succession.
Illustration
E30-490T20D user manual
12

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