E22-230T30D, E22-230T30S Register Description - Ebyte E22 T30D Series User Manual

Chengdu Ebyte Electronic Technology Co., Ltd.

7.3 E22-230T30D, E22-230T30S register description

Read
No. or Name
Write
Read/
00H ADDH
Write
Read/
01H ADDL
Write
Read/
02H NETID
Write
Read/
03H REG0
Write
04H Read/
REG1
Write
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Description
ADDH (default 0)
ADDL (default 0)
NETID (default 0)
7 6 5 UART Serial port rate（bps）
0 0 0 Serial port baud rate 1200
0 0 1 Serial port baud rate 2400
0 1 0 Serial port baud rate 4800
Serial port baud rate 9600
0 1 1
（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
0 0 8N1（default）
0 1 8O1
1 0 8E1
1 1 8N1（equal to 00）
2 1 0 Wireless air data rate（bps）
0 0 0 Air data rate 2.4k
0 0 1 Air data rate 2.4k
0 1 0 Air data rate 2.4k
0 1 1 Air data rate 2.4k (default)
1 0 0 Air data rate 4.8k
1 0 1 Air data rate 9.6k
1 1 0 Air data rate 15.6k
1 1 1 Air data rate 15.6k
7 6 Sub packet setting
0 0 240 bytes（default）
0 1 128 bytes
1 0 64 bytes
1 1 32 bytes
5 RSSI environmental noise enable
E22-xxxT30x series product user manual
Remark
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.
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.
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.
The communication parties can have different
serial parity bit.
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.
When the data sent is smaller than the sub packet
length, the serial output of the receiving end is an
uninterrupted continuous output.
When the data sent is larger than the sub packet
length, the serial port in receiving end will sub
packet the data and then output them.
RSSI enable command (Sub packet setting,
23