Ebyte E90-DTU User Manual page 15

Chengdu Ebyte Electronic Technology Co., Ltd.
Read/W
05H REG2
rite
Read/W
06H REG3
rite
CRYPT_
07H Write
CRYPT_
08H Write
80H~ Read
PID
86H only
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0 0
0 1 41.5±0.5dBm （default）
1 0
1 1
Channel control（CH）
0-83 represents a total of 84 channels
7 Enable RSSI
0 Disable（default）
1 Enable
6 Transmission mode
0 Transparent transmission mode（default）
1 Fixed point transmission mode
5 Repeater function
0 Disable repeater function（default）
1 Enable repeater function
4 LBT enable
0 Disable（default）
1 Enable
3 Reserve
2 1 0 Reserve
High byte of Key（default 0）
H
Low byte of Key（default 0）
L
Product information: 7bytes
power efficiency is the highest at
maximum power.
The
proportion to the decrease in power.
40dBm
Actual Frequency= 410.125Mhz+ CH
*1Mhz
After enabled, when the module receives
the wireless data, it will follow an RSSI
strength byte after output via the serial
port TXD
In Fixed point transmission mode, the
module will recognize the first three bytes
of the received serial port data as:
Address high + address low + channel,
and use it as a wireless transmission
target.
After the repeater function is enabled, if
the target address is not the module itself,
the module will starting a forwarding.
In order to prevent data return-back, it is
recommended to use it in conjunction with
the fixed-point transmission mode.
That is: the target address is different from
the source address.
After enabled, wireless data will be
monitored before transmission, which can
avoid interference to a certain extent, but
may cause data delay
The maximum stay time of LBT is 2
seconds, and it will be issued forcibly
when it reaches 2 seconds.
Write only, read returns 0
Used for user encryption to avoid
interception of wireless data over the air
by similar modules.
The module will internally use these two
bytes as a calculation factor to do a
transform encryption processing for the
wireless signal over the air..
Product information: 7bytes
E90-DTU(400SL42) User Manual
current does not decrease in
13