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Chengdu Ebyte Electronic Technology Co.,Ltd.
04H
Write/
REG1
read
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co.,Ltd.
15
Serial port baud rate is
0
0
1
2400
Serial port baud rate is
0
1
0
4800
Serial port baud rate is
0
1
1
9600（default）
Serial port baud rate is
1
0
0
19200
Serial port baud rate is
1
0
1
38400
Serial port baud rate is
1
1
0
57600
Serial port baud rate is
1
1
1
115200
4
3
Serial check digit
0
0
8N1（default）
0
1
8O1
1
0
8E1
1
1
8N1（equivalent 00）
2
1
0
Wireless air rate (bps)
0
0
0
Air rate2.4k
0
0
1
Air rate2.4k
0
1
0
Air rate2.4k
0
1
1
Air rate2.4k（default）
1
0
0
Air rate4.8k
1
0
1
Air rate9.6k
1
1
0
Air rate15.6k
1
1
1
Air rate15.6k
7
6
Subcontracting settings
0
0
240bytes（default）
0
1
128bytes
1
0
64bytes
1
1
32bytes
5
RSSI Ambient Noise Enable
0
disabled (default)
1
Enable
E22-230T22D User Manual
When continuously transmitting large data
packets, users need to consider the data
blocking caused by the same baud rate, and
may even be lost;
It is generally recommended that both sides
of the communication have the same baud
rate.
The serial port modes of both sides of the
communication can be different；
The air speed of both parties must be the
same;
The higher the air rate, the lower the delay
and the shorter the transmission distance.
When the data sent by the user is less than
the packet length, the serial output of the
receiving end is presented as uninterrupted
continuous output;
If the data sent by the user is larger than
the packet length, the serial port of the
receiving end will be output in packets.
Enable command (packet setting, transmit
power as default parameters, configuration
mode): C0 04 01 20;
After it is enabled, the C0 C1 C2 C3
instruction can be sent in the transmission
mode or the WOR transmission mode to read
the register;
Register 0x00: Current ambient noise RSSI;
Register 0X01: RSSI when data was last
received
(Current channel noise is: dBm = -(256 -
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