Ebyte E22-230T22S - Page 21

Chengdu Ebyte Electronic Technology Co., Ltd. E22-230T22S User manual
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co.,Ltd.
20
00：22dbm（default）
01：17dbm
10：13dbm
11：10dbm
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 =-(256-HEX)）
Command format: C0 C1 C2 C3 + starting
address + read length
Returns: C1 + address + read length + read valid
value
E.g: send C0 C1 C2 C3 00 01
Return C1 00 01 rssi
（Address can only start from 00）
----------------------------------
 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.
05H
Read/
Write
REG2
Channel control（CH）
0-64 represents a total of 65 channels

Frequency= 220.125 + CH *0.25M
06H
Read/
Write
REG3
7 Enable RSSI
1：Enable
0：Disable（default）
--------------------------------------
6， Fixed point transmission
1：Fixed point transmission mode
0 ： Transparent transmission
mode（default）
---------------------------------------
5 Enable reply
1：Enable repeater function
0：Disable repeater function
--------------------------------------
4 LBT enable byte (monitor before
transmission)
1：Enable
0：Disable（default）
--------------------------------------

When enabled, the module receives wireless
data and it will follow an RSSI strength byte
after output via the serial port TXD
.---------------------------------------
 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.
---------------------------------------

After the reply function is enabled, if the
target address is not the module itself, the
module will forward it once.
 In order to prevent data return-back, it is
recommended to use it in conjunction with
the fixed point mode. That is: the target
address is different from the source address.
----------------------------------------

When enabled, wireless data will be
monitored before it is transmitted, which can
avoid interference to a certain extent, but
may cause data delay.
----------------------------------------