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Chengdu Ebyte Electronic Technology Co., Ltd.
E220-900T30D User Manual
0
0
0
Air Data Rate 2 4k
The higher the air rate, the smaller the delay and
the shorter the transmission distance.
0
0
1
Air Data Rate 2 4k
0
1
0
Air Data Rate 24k
(default)
0
1
1
Air Data Rate 4.8k
1
0
0
Air Data Rate 9.6k
1
0
1
Air Data Rate 19.2k
1
1
0
Air Data Rate 38.4k
1
1
1
Air Data Rate 62.5k
7
6
Sub-Packet Setting
The data sent by the user is less than the
sub-packet length, and the serial port output of the
0
0
200 bytes
(default)
receiving end appears as an uninterrupted
0
1
128 bytes
continuous output;
!
v
64 bytes
The data sent by the user is larger than the packet
|
|
32 bytes
length, and the serial port of the receiving end will
be output in packets.
5
RSSI Ambient noise enable
After enabling, you can send commands
CO C1
-
C2
C3
in transmission
mode
or WOR
sending
0
Disable
(Default)
mode to read registers;
Register 0x00: Current environmental noise RSS;
Register
0X01:
RSSI
when
receiving
data
last
time
03H
Read/
(The current channel
noise is:dBm
= -
(256
-
}
REGI
RSSD
;
Write
1
Enable
Instruction
format:
CO
Cl
C2
C3+start
addresstread length,
Return: C1 + address + read length + read valid
value, for example: send CO C1 C2 C3 00 01
Return C1 00 01 RSSI (address can only start
from 00)
4
3
2
Reserve
1
0
Transmitting Power
The
relationship
between
power
and
current is
0
0
30dBm
(default)
non-linear, and the power supply has the highest
m
(default
efficiency at maximum power;
0
1
27dBm
1
0
24dBm
The current will not decrease in the same
1
1
21dBm
proportion as the power decreases.
dH
Read/
REG
Channel Control (CH)
Actual fi
450.125 + CH *1M
=
+
Write
0-80 represents a total of 81 channels
ctual
frequency
'
7
Enable RSSI Byte
After being enabled, the module receives wireless
0
Disable
(Default)
data and outputs it through the serial port TXD,
1
Enable
followed by an RSSI strength byte.
6
Transmission Method
During fixed transmission, the module will
recognize the first three bytes of serial data as:
Read/
0
Transparent transmission mode
(default)
address high + address low + channel, and use it
05H
Writ
REG3
1
Fixed transmission mode
as a wireless transmission target.
rite
5
Reserve
4
LBT Enable
After enabling, monitoring will be conducted
-
before wireless data transmission, which can
0
Disable
(default)
avoid interference to a certain extent, but may
cause data delay;
1
Enable
The maximum stay time of LBT is 2 seconds, and
Copyright ©2012-2020, Chengdu Ebyte Electronic Technology Co.,Ltd.
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