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2 Sub-package mode
3 Configuration mode
4 WOR mode
5 Configuration mode
(Same as Mode 3)
6 Power saving mode
7 Sleep mode
6.1 Mode Switch
The user can decide the operating mode by the combination of M0, M1 and M2. The two GPIOs of MCU can be
used to switch mode. After modifying M0, M1 or M2, 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 2 or mode 4, 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 1ms 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
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UART opens. Wireless closes and
0
1
0
sub-package transparent transmission is
available.
UART opens. Wireless closes and
0
1
1
parameter can be configured.
UART opens. Wireless closes and
1
0
0
sub-package transparent transmission is
available.
1
0
1
-
UART closes. Wireless works at WOR
1
1
0
power saving mode. Multiple time
grades can be configured.
UART closes, wireless transmitting is
1
1
1
available and sleep mode is on.
E70-900T30Suser manual
Air data rate and baud rate can be
adjusted separately. It is applicable for
data packet transmission.
Baud rate is fixed as 9600 8N1.
Receiving is not available under this
mode. Preamble code will be added
proactively before transmission to wake
up the receiver under mode 6.
-
Transmission is not available under this
mode. It can be woken up by
transmitter under mode 4 to achieve
low power consumption receiving.
It can be woken up by any falling edge
of M2, M1, M0.
13
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