Chengdu Ebyte Electronic Technology Co.,Ltd.
E280-2G4T12S User Manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
15
1
0
1
The serial port is115200
1
1
0
The serial port is460800
1
1
1
The serial port is921600
2
1
0
Wireless air rate (BPS)
In the air rate non-connection mode, the
serial port baud rate and the wireless
transmission parameter are independent
of the wireless transmission and reception
characteristics.
In the air rate link mode, the serial port
levy determines the air rate. The faster the
baud rate, the faster the transmission
speed, the closer the transmission
distance.
The lower the air rate, the farther
distance, the stronger the anti-interference
performance, the longer the transmission
time.
Communication two sides air wireless
transmission rates must be the same
0
0
0
Air speed adaptive (continuous transmission)
0
0
1
Air speed is 1K
0
1
0
Air speed is5k
0
1
1
Air speed is10k(default)
1
0
0
Air speed is50k
1
0
1
Air speed is100k
1
1
0
Air speed is1M
（
FLRC
）
1
1
1
Air speed is2M
（
FSK
）
4
CHAN
Communication letter code
Default: 0x18
Ordinary mode:
When the air speed is 1K, 5K, 10K, the channel calculation formula is:
2400 + CHAN * 1MHz;
When the vacancy is 50K, 100K, the channel calculation formula is: 2400
+ CHAN * 2MHz;
When the air speed is 1m, the channel calculation formula is: 2400 +
CHAN * 3MHz;
When the air speed is 2m, the channel calculation formula is: 2400 +
CHAN * 5MHz;
Link mode:
Porture Rate 1200, 9600, 19200, channel calculation formula is: 2400 +
CHAN * 2MHz;
Porture Rate 4800, 57600, 115200 The channel calculation formula is:
2400 + CHAN * 4MHz;
Porture Rate 460800, 921600 The channel calculation formula is: 2400 +
CHAN * 5MHz;
5
OPTION
7
Set point send enable (class modbus)
At 1, the first three bytes of each user
data frame are high, low addresses,
channels. The emission module changes
its address and channel, and then restores
the original settings after the completion;
the connection mode is transparent.
0
Transparent transmission mode (default)
1
Designation point transmission mode
6
Ranging mode
The main address and slave address in the
ranging mode are determined by the
ADDH and ADDL, and the ranging is to
ensure that the host is consistent with the
slave address and channel.
Users can set channels in fixed frequency
mode. Channel setting range (0-39).
The channel calculation formula is 2402
+ CHAN * 2MHz;
The module automatically sets the
channel under the frequency hop mode to
jump down at 2402-2480 MHz, stepper
2MHz.
0
High precision mode (default)
1
Long distance mode
5
Range frequency type
0
Fixed frequency (default)
1
Frequency hopping
4
Test mode device type (reserved)
0
From the machine (default)
1
Host
3
LBT switch
After opening the LBT, check the current
channel quality before sending each
packet data, if better, direct transmission,
channel interference is waiting for
interference to disappear after sending.
115200 Air speed below, it may affect the
linkage function after opening.
0
Turn off LBT (default)
1
Open LBT
2
IO driver
This bit is used to enable the internal
