Ebyte E32-433T30D - Operating Mode

EBYTE
Chengdu Ebyte Electronic Technology Co,Ltd E32-433T30D user manual
6 Operating mode
There are four operating modes, which are set by M1 and MO, the details are as follows:
Mode (0-3) MO | M1 Mode introduction Remark
0 Normal 0 0 UART and wireless channel are open, transparent | The receiver must work in
transmission 1s on mode 0 or mode 1
1 Wake up 1 0 UART and wireless channel are open, the only difference | The receiver could be 0,1 or 2
with mode O is that before transmitting data, increasing the
wake up code automatically, so that it can awake the receiver
under mode 3.
2 Power saving 0 1 UART close, wireless is under air-awaken mode, after | transmitter must be mode 1,
receiving data, UART open and send data. unable to transmit in this mode.
3 Sleep 1 1 sleep mode, receiving parameter setting command is | more details on parameter
available. specification.
6.1 Mode switch
The user can decide the operating mode by the combination of M1 and MO. The two GPIO of MCU can be used to
switch mode. After modifying M1 or MO, it will start to work in new mode 1ms later if the module is free. If there
are any serial data that are yet to finish wireless transmitting, it will start to work in new mode after the UART
transmitting finished. After the module receives the wireless data & transmits the data through serial port, it will
start to work in new mode after the transmitting finished. Therefore, the mode-switch is only valid when AUX
outputs 1, otherwise it will delay.
For example, in mode 0 or mode 1, if the user inputs massive data consecutively and switches operating mode at the
same time, the mode-switch operation is invalid. New mode checking can only be started after all the user’s data
process completed. It is recommended to check AUX pin out status and wait 2ms after AUX outputs high level
before switching the mode.
If the module switches from other modes to stand-by mode, it will work in stand-by mode only after all the
remained data process completed. The feature can be used to save power consumption. For example, when the
transmitter works in mode 0, after the external MCU transmits data “12345”, it can switch to sleep mode
immediately without waiting the rising edge of the AUX pin, also the user’s main MCU will go dormancy
immediately. Then the module will transmit all the data through wireless transmission & go dormancy Ims later
automatically, which reduces MCU working time & save power.
Likewise, this feature can be used in any mode-switch. The module will start to work in new mode within 1ms after
completing present mode task, which enables the user to omit the procedure of AUX inquiry and switch mode
swiftly. For example, when switching from transmitting mode to receiving mode, the user MCU can go dormancy
before mode-switch, using external interrupt function to get AUX change so that the mode-switch can be realized.
This operation is very flexible and efficient. It is totally designed on the basis of the user MCU’s convenience, at the
same time the work load and power consumption of the whole system have been reduced and the efficiency of
whole system is largely improved.
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