Chengdu Ebyte Electronic Technology Co., Ltd.
E22-xxxT22S series product user manual
Copyright©2012–2024
, Chengdu Ebyte Electronic Technology Co., Ltd.
16
5
Wrong format
Format error response
FF FF FF
7.2 E22-400/900T22S register description
No.
Read
or
Write
Name
Description
Remark
00H
Read/
Write
ADDH
ADDH (default 0)
High byte and low byte in the module address;
Note: When the module address is FFFF, it can be
used as the broadcast and listening address, that
is: the module will not perform address filtering.
01H
Read/
Write
ADDL
ADDL (default 0)
02H
Read/
Write
NETID
NETID (default 0)
Network address, used to distinguish the network.
When two or more modules need to communicate
with each other, their network address should be
the same.
03H
Read/
Write
REG0
7
6
5
UART Serial port rate
（
bps
）
For the two modules communicating with each
other, their serial port baud rate can be different,
and their serial parity bit can also be different.
When transmitting large packets continuously,
users need to consider the data blocking and
possible data loss caused by the same baud rate.
It is generally recommended that both
communication parties have the same baud rate.
0
0
0
Serial port baud rate 1200
0
0
1
Serial port baud rate 2400
0
1
0
Serial port baud rate 4800
0
1
1
Serial port baud rate 9600
（
default
）
1
0
0
Serial port baud rate 19200
1
0
1
Serial port baud rate 38400
1
1
0
Serial port baud rate 57600
1
1
1
Serial port baud rate 115200
4
3
Serial port parity bit
The communication parties can have different
serial parity bit.
0
0
8N1
（
default
）
0
1
8O1
1
0
8E1
1
1
8N1
（
equal to 00
）
2
1
0
Wireless air data rate
（
bps
）
The communication parties must have the same
air data rate.
The higher the air data rate is, the smaller the
delay in response, and the shorter the transmission
distance is.
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
0 4H
Read/
Write
REG1
7
6
Sub packet setting
When the data sent is smaller than the sub packet
length, the serial output of the receiving end is an
uninterrupted continuous output.
0
0
240 bytes
（
default
）
