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Chengdu Ebyte Electronic Technology Co.,Ltd.
4
CHAN
5
OPTION
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.
1
0
0
1
0
1
1
1
0
1
1
1
2
1
0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
7
6
5
Communication channel
4-0：（425M + CHAN * 0.1M ), default 50H（433M ）
Fixed point send enable bit（similar to M ODBUS）
7
0
Transparent transmission mode
1
Fixed point transmission mode
IO drive mode（default 1）
6
TXD、AUX push-pull output，RXD pull up input
1
TXD、AUX open-drain outputs，RXD open-drain
0
5
4
3
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
2
0
Turn off FEC
Open FEC（default）
1
Serial port baud rate 19200
Serial port baud rate 38400
Serial port baud rate 57600
Serial port baud rate 115200
Wireless air data rate（bps）
Air data rate 1.2k（default）
Air data rate 2.4k
Air data rate 4.8k
Air data rate 9.6k
Air data rate 19.2k
Air data rate 38.4k
Air data rate 50k
Air data rate 70k
Keep and unused
inputs
Wireless wake-up time
250ms（default）
500ms
750ms
1000ms
1250ms
1500ms
1750ms
2000ms
FEC switch
E31-433T17D User Manual
wireless transmission and reception
characteristics.
The lower the air speed, the longer the
distance, the stronger the anti-
interference performance and the longer
the transmission time.
The wireless transmission rates of both
communicating parties must be the same.
Write 0.
00H-FFH，correspond 425 ~ 450.5M Hz
When value is 1, the first 3 bytes of each
user data frame are used as the high and
low addresses and channels. When
transmitting, the module changes its own
address and channel, and when it is
finished, it restores the original settings.
This bit is used to enable the internal
pull-up resistor of the module. Open-
drain mode is more adaptable, and in
some cases an external pull-up resistor
may be required.
Both transmitter and receiver module
work in mode 0. The delay time is invalid
and can be any value.
The transmitter works in mode 1, and
will continue to transmit the call code for
the corresponding time.
The receiver works in mode 2, which
refers to the receiver's listening interval
(wireless wake-up) and can only receive
data from the module working in mode 1.
After the FEC is turned off, the actual
data transmission rate is increased, but
the anti-interference ability is weakened
and the distance is slightly closer. Please
choose according to the actual
application.
Both sides of
13
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