Ebyte E220-900T30S, User Manual

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Chengdu Ebyte Electronic Technology Co., Ltd. E220-900T30S User Manual
Copyright ©2012–2020, Chengdu Ebyte Electronic Technology Co., Ltd.
11
5.6.4 Notes for AUX
No. AUX Description
1
For function 1 & function 2 mentioned above, the priority should be given to the one with low level output, which means if
it 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.
2
When AUX outputs low level, it means the module is busy & cannot conduct operating mode checking. Within 1ms since
AUX outputs high level, the mode switch will be completed.
3
After switching to new operating mode, it will not work in the new mode immediately until AUX rising edge lasts for 2ms.
If AUX stays on the high level, the operating mode switch can be affected immediately.
4
When the user switches to other operating modes from mode 3 (sleep mode) or it’s still in reset process, the module will
reset user parameters, during which AUX outputs low level.
5
Due to the characteristics of the LoRa modulation method, the information transmission delay is much longer than that of
FSK. For example, at 2.4kbps airspeed, the 100-byte transmission delay is about 1.5 seconds. 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 M0 Description Remark
0 Transmission
Mode
0 0
UART and wireless channel are open, transparent transmission is
on
—
1 WOR
Transmitting
Mode
0 1 WOR transmits data, WOR receives data Supports wake up over air
2 WOR
Receiving Mode
1 0 WOR transmitting is closed, WOR receiving data —
3 Deep Sleep
Mode
1 1 Parameters can be configured —
6.1 Mode Switching
No. Remark