Ebyte E22-230T22D User Manual page 17

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04H Read/Wri
REG1
te
Read/Wri
05H REG2
te
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0 0 8N1 (default)
0 1 8O1
1 0 8E1
1 1 8N1 (equivalent to 00)
2 1 0 Wireless Air Speed (bps)
0 0 0 Air speed 0.3k
0 0 1 Airspeed 0.6k
0 1 0 Airspeed 1.2k
0 1 1 Airspeed 2.4k (default)
1 0 0 Air speed 4.8k
1 0 1 Airspeed 9.6k
1 1 0 Airspeed 15.6k
1 1 1 Airspeed 15.6k
7 6 Subcontracting settings
0 0 240 bytes (default)
0 1 128 bytes
1 0 64 bytes
1 1 32 bytes
5 RSSI Environmental Noise Enable
0 Disable (default)
1 Enable
4 3 2 Reserved
1 0 Transmitting power
0 0 22dBm (default)
0 1 17dBm
1 0 13dBm
1 1 10dBm
Channel Control (CH)
0-64 represent a total of 65 channels respectively
E22-230T22D User Manual
the communication.
The air rate must be the same on both sides of the
communication.
The higher the air rate, the lower the delay and the
shorter the transmission distance.
(a) If the user sends data smaller than the packet
length, the serial output at the receiving end is
presented as uninterrupted continuous output.
If the user sends data larger than the packet
length, the serial port at the receiving end will
split the packet output.
When enabled, the command C0 C1 C2 C3 can be
sent in transmit mode or WOR send mode Read
register.
Register 0x00 : Current ambient noise RSSI.
Register 0X01 : RSSI of the last received data
(Current channel noise is: dBm = -(256 - RSSI).
Command format: C0 C1 C2 C3 + start address +
read length.
Returns: C1 + address + read length + read valid
value.
For example: send C0 C1 C2 C3 00 01
Return C1 00 01 RSSI (address can only start
from 00)
(a) Power and current are non-linearly related, and
the power supply is most efficient at maximum
power.
The current does not decrease in the same
proportion as the power decreases.
Actual frequency = 220.125 + CH * 0.25M
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