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5.6.3 Configuration procedure of module
Only happened when power-on resetting or exiting sleep mode
5.6.4 Notes for AUX
No.
For function 1 & function 2 mentioned above, the priority should be given to the one with low level output, which means if it
1
meets each of any low level output condition, AUX outputs low level, if none of the low level condition is met, AUX outputs
high level.
When AUX outputs low level, it means the module is busy & cannot conduct operating mode checking. Within 1ms since AUX
2
outputs high level, the mode switch will be completed.
After switching to new operating mode, it will not work in the new mode immediately until AUX rising edge lasts for 2ms . If
3
AUX stays on the high level, the operating mode switch can be effected immediately.
When the user switches to other operating modes from mode 3 (sleep mode) or it's still in reset process, the module will reset
4
user parameters, during which AUX outputs low level.
Due to the characteristics of the LoRa modulation method, the information transmission delay is much longer than that of FSK.
5
It is recommended that customers do not transmit large amounts of data at low airspeeds, so as to avoid communication
abnormalities caused by data loss due to data accumulation.
6 Operating mode
There are four operating modes, which are set by M1 and M0, the details are as follows:
Mode(0-3)
M1
0 Normal mode
0
1 WOR transmitting
0
mode
2 Configuration mode
1
3 Deep sleep mode
1
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M0
UART and wireless channel are open, transparent transmission
0
is on
1
Can be defined as WOR transmitter and WOR receiver
Users can access the registers through the serial port to control
0
the working status of the module
1
Module enters sleep mode
Description
Description
E22-400T33S User Manual
Remark
Support over-the-air configuration via
special command
Support wake up over air
10
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