Chengdu Ebyte Electronic Technology Co., Ltd.
E22-230T22S User manual
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co.,Ltd.
19
03H
Read/
Write
REG0
7，6，5
UART: Serial port rate（bps）
000: 1200
001: 2400
010: 4800
011: 9600（default）
100: 19200
101: 38400
110: 57600
111: 115200
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4，3：
Serial parity bit
00：8N1（default）
01：8O1
10：8E1
11：8N1（equal to 00）
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2，1，0，air data rate
000: 0.3k
001: 1.2k
010: 2.4k（default）
011: 4.8k
100: 9.6k
101: 19.2k
110: 38.4k
111: 62.5k
For the two modules that communicate with
each other, the serial port baud rate can be
different, and the verification method can
also be different.
When transmitting large packets
continuously, users need to consider the
data blocking caused by the same baud rate,
and data may even be lost. It is generally
recommended that both parties have the
same baud rate.
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Both parties must be the same
The higher the rate, the shorter the distance
04H
Read/
Write
REG1
7，6：
Sub packet setting
00: 240 bytes（default）
01: 128 bytes
10: 64 bytes
11: 32 bytes
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5 ：RSSI Ambient noise enable
1: Enable
0: Disable（default）
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4，3，2 Reserve
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1，0：
Transmitting power
When the data is smaller than the sub packet
length, the serial output of the receiving end
is an uninterrupted continuous output.
When the data is larger than the sub packet
length, the receiving end serial port will
output the sub packet.
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When enabled, the C0 C1 C2 C3 command
can be sent in the transmitting mode or
