Ebyte E22 T30D Series User Manual page 24

Chengdu Ebyte Electronic Technology Co., Ltd.
Read/
05H REG2
Write
Read/
06H REG3
Write
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0 Disabled (default)
1 Enable
4 Software mode switching
0 Disabled (default)
1 Enable
3 2 Reserve
1 0 Transmitting power
0 0 30dBm (default)
0 1 27dBm
1 0 24dBm
1 1 21dBm
Channel Control (CH)
0-64 respectively represent a total of 65 channels
7 Enable RSSI bytes
0 Disabled (default)
1 Enable
6 Transmission mode
0 Transparent transmission (default)
1 Fixed point transmission
5 Repeater function
0 Disable repeater functionality (default)
E22-xxxT30x series product user manual
transmit power as default
configuration mode): C0 04 01 20;
After enabling, the command C0 C1 C2 C3 can be
sent in the normal mode(mode 0)
transmission mode (trasmitter 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
address+read length;
Return: C1 + address + read length + read valid
value;
For example:
Send: C0 C1 C2 C3 00 01
(the address can only
Return: C1 00 01 RSSI
start from 00)
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.
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.
Actual frequency =220.125MHz + CH *0.25MHz
After enabled, when the module receives the
wireless data, it will follow an RSSI strength byte
after output via the serial port TXD
During fixed-point transmission, the module will
identify the first three bytes of serial port data as:
address high + address low + channel, and use
them as wireless transmission targets.
After the repeater function is enabled, if the target
address is not the module itself, the module will
start a forwarding ;
parameters,
or WOR
C1 C2 C3+start
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