Ebyte E220-400T22D, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co., Ltd. E220-900T22D User Manual
Copyright ©2012–2020
，
Chengdu Ebyte Electronic Technology Co., Ltd. 15
The higher the air rate, the smaller the delay and
the shorter the transmission distance.
0 0 0 Air Data Rate 2.4k
0 0 1 Air Data Rate 2.4k
0 1 0 Air Data Rate 2.4k
（
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
03H
Read/
Write
REG1
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
receiving end appears as an uninterrupted
continuous output;
The data sent by the user is larger than the packet
length, and the serial port of the receiving end will
be output in packets.
0 0 200 bytes
（
default
）
0 1 128 bytes
1 0 64 bytes
1 1 32 bytes
5 RSSI Ambient noise enable
After enabling, you can send commands C0 C1
C2 C3 in transmission mode or WOR sending
mode to read registers;
Register 0x00: Current environmental noise RSSI;
Register 0X01: RSSI when receiving data last
time
(The current channel noise is: dBm = -
（
256 -
RSSI
）
);
Instruction format: C0 C1 C2 C3+start
read length;
Return: C1 + a read read valid
value; for example: send C0 C1 C2 C3 00 01
Return C1 00 01 RSSI (address can only start
from 00)
0 Disable
（
Default
）
1 Enable
4 3 2 Reserve
1 0 Transmitting Power The relationship between power and current is
non-linear, and the power supply has the highest
efficiency at maximum power;
The current will not decrease in the same
proportion as the power decreases.
0 0 22dBm
（
default
）
0 1 17dBm
1 0 13dBm
1 1 10dBm
04H
Read/
Write
REG2
Channel Control
（
CH
）
0-83 represents a total of 84 channels
Actual frequency = 410.125 + CH *1M
05H
Read/
Write
REG3
7 Enable RSSI Byte
After being enabled, the module receives wireless
data and outputs it through the serial port TXD,
followed by an RSSI strength byte.
0 Disable
（
Default
）
1 Enable
6 Transmission Method
During fixed transmission, the module will
recognize the first three bytes of serial data as:
address high + address low + channel, and use it
as a wireless transmission target.
0 Transparent transmission mode
（
default
）
1 Fixed transmission mode
5 Reserve
4 LBT Enable
After enabling, monitoring will be conducted
before wireless data transmission, which can
avoid interference to a certain extent, but may
cause data delay;
The maximum stay time of LBT is 2 seconds, and
0 Disable
（
default
）
1 Enable