Chengdu Ebyte Electronic Technology Co., Ltd.
E22-xxxT22S series product user manual
Copyright©2012–2024
, Chengdu Ebyte Electronic Technology Co., Ltd.
17
When the data sent is larger than the sub packet
length, the serial port in receiving end willsub
packet the data and then output them.
0
1
128 bytes
1
0
64 bytes
1
1
32 bytes
5
RSSI environmental noise enable
RSSI enable command (Sub packet setting,
transmit
power
as
default
parameters,
configuration mode): C0 04 01 20;
After enabling, the command C0 C1 C2 C3 can be
sent in the normal mode(mode 0)
or WOR
transmission mode (transmitter in mode 1) to read
the register;
Register 0x00: current environmental noise RSSI;
Register 0x01: RSSI at Last Data Received
(Current channel noise is: dBm = -(256 - RSSI));
Command format: C0 C1 C2 C3+start
read length;
Return: C1 + a read read valid
value;
For example:
Send: C0 C1 C2 C3 00 01
Return: C1 00 01 RSSI
(the address can only
start from 00)
0
Disable
（
default
）
1
Enable
4
Software mode switching
If you use Ebyte's host computer configuration
software, this bit will be turned off
automatically.
If you don’t want to use the M0
M1 pins to switch working modes, you can
enable this function, and use specific serial port
commands to switch modes.
Format: C0 C1 C2 C3 02 + working mode
Send C0 C1 C2 C3 02 00 to switch to transparent
transmission mode
Send C0 C1 C2 C3 02 01 to switch to WOR mode
Send C0 C1 C2 C3 02 02 to switch to
configuration mode
Send C0 C1 C2 C3 02 03 to switch to sleep mode
Return: C1 C2 C3 02 + working mode
Note: After enabling this function, WOR mode
and sleep mode only support 9600 baud rate.
0
Disabled (default)
1
Enable
3
2
Reserve
1
0
Transmitting power
There is a non-linear relationship between power
and current. At the maximum power, the power
supply efficiency is the highest ;
Current does not decrease in proportion to the
decrease in power.
0
0
22dBm (default)
0
1
17dBm
1
0
13dBm
1
1
10dBm
05H
Read/
Write
REG2
Channel Control (CH )
0-83 respectively represent a total of 84 channels
( applicable to the 400Mhz frequency band )
0-80 respectively represent a total of 81 channels
( applicable to the 900Mhz frequency band )
Actual frequency = 410. CH * 1MHz
Actual frequency = 850. CH * 1MHz
06H
Read/
REG3
7
Enable RSSI bytes
After enabled, when the module receives the
