General Mode (Mode 0); Wake -Up Mode (Mode 1); Power Saving Mode (Mode 2) - Ebyte E32-433T20D User Manual

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mode switch, and use the external interrupt function to obtain the AUX change to perform the mode switch.
This operation mode is very flexible and efficient, and is completely designed according to the user's MCU operation

convenience, and can reduce the workload of the entire system as much as possible, improve system efficiency, and reduce
power consumption.

6.2 General Mode (Mode 0)

type When M0 = 0, M1 = 0, the module works in mode 0
The module receives user data from the serial port, and the length of the wireless data packet transmitted
by the module is 58 bytes. When the amount of data input by the user reaches 58 bytes, the module will
start wireless transmission. At this time, the user can continue to input the data to be transmitted; when
the user needs When the transmitted bytes are less than 58 bytes, the module waits for 3 bytes. If no user
data continues to be input, the data is considered to be terminated. At this time, the module sends all data
emission
packets wirelessly; when the module receives the first user data , the AUX output is low level, when the
module puts all the data into the RF chip and starts the transmission, the AUX output is high level; at this
time, it indicates that the last packet of wireless data has been started to transmit, and the user can
continue to input up to 512 Byte data; data packets sent through mode 0 can only be received by the
receiving module in mode 0 and mode 1.
The module has always turned on the wireless receiving function, and can receive data packets from
mode 0 and mode 1;
take over After receiving the data packet, the module AUX outputs low level, and after a delay of 5ms, it starts to
send wireless data through the serial port TXD pin. After all wireless data is output through the serial
port, the module outputs AUX high level.

6.3 Wake -up Mode (Mode 1)

type When M0 = 1, M1 = 0, the module works in mode 1
The conditions for the module to start data packet transmission and the AUX function are equivalent to
mode 0; the only difference is that the module will automatically add a wake-up code before each data
emission packet, and the length of the wake-up code depends on the wake-up time set in the user parameters; the
wake-up code The purpose is to wake up the receiving module working in mode 2; therefore, the data
transmitted in mode 1 can be received by modes 0, 1, and 2.
take over Equivalent to mode 0.

6.4 Power saving mode (mode 2)

type When M0 = 0, M1 = 1, the module works in mode 2
The module is in a dormant state, the serial port is closed, and it cannot receive serial port data from an
emission
external MCU, so this mode does not have a wireless transmission function.
In mode 2, the transmitter is required to work in mode 1; monitor the wake-up code regularly, once a
valid wake-up code is received, the module will continue to be in the receiving state and wait for the
entire valid data packet to be received; then AUX outputs a low level , after a delay of 5ms, open the
serial port to send the received wireless data through TXD, and output AUX high level after completion;
take over
the wireless module continues to enter the "sleep-monitoring" working state (polling); by setting
different wake-up times, the module With different receiving response delay (maximum 2s) and average
power consumption (minimum 30uA); users need to achieve a balance between communication delay
time and average power consumption.
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E32-433T20D User Manual
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