Ebyte E22-400T30D User Manual page 17

Chengdu Ebyte Electronic Technology Co., Ltd.
Read/Wr
04H REG1
ite
Read/Wr
05H REG2
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Read/Wr
06H REG3
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Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
100: 9.6k
101: 19.2k
110: 38.4k
111: 62.5k
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
00：30dbm（default）
01：27dbm
10：24dbm
11：21dbm
Channel control（CH）
0-83 represents a total of 84 channels
7 Enable RSSI
1：Enable
0：Disable（default）
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6， Transmission mode
E22-400T30D User Manual
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 WOR transmitting
mode to read the register.
Register 0x00: Current ambient noise rssi
Register 0X01: rssi when the data was received last
time.
（Current channel noise is: dBm =-RSSI/2）
Command format: C0 C1 C2 C3 + starting address +
read length
Returns: C1 + address address + read length + read valid
value
E.g: send C0 C1 C2 C3 00 01
Return C1 00 01 rssi
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Power and current are nonlinear, and power

efficiency is highest at maximum power.
The current does not decrease in proportion to the

decrease in power.
Frequency= 410.125 + CH *1M

When enabled, the module receives wireless data

and it will follow an RSSI strength byte after output
via the serial port TXD
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The module recognizes the first three bytes of the

serial data as: address high + address low + channel
and takes it as the wireless transmitting target.
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