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Chengdu Ebyte Electronic Technology Co,;Ltd
4
CHAN
4-0, channel (410M + CHAN*1M), default 17H
（433MHz）
5
OPTION
Copyright ©2012–2022，Chengdu Ebyte Electronic Technology Co.,Ltd.
1
1
0
1
1
1
General Specifications
7
6
5
Communication channel
7
Fixed transmission enabling bit（similar to MODBUS）
0
Transparent transmission mode
1
Fixed transmission mode
6
IO drive mode (default 1)
1
TXD and AUX push-pull outputs, RXD pull-up inputs
TXD、AUX open-collector outputs, RXD open-collector
0
inputs
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
1
Turn on FEC (default)
1
0
Transmission power (approximation)
0
0
0
1
1
0
19.2k (same to 101)
19.2k (same to 101)
reserved
wireless wake-up time
250ms (default)
500ms
750ms
1000ms
1250ms
1500ms
1750ms
2000ms
FEC switch
33dBm (default)
30dBm
27dBm
E32-433T33S user manual
Write 0
00H-1FH, correspond to 410~441MHz
In fixed transmission mode, the first
three bytes of each user's data frame can
be used as high/low address and channel.
The module changes its address and
channel when transmit. And it will revert
to original setting after complete the
process.
This bit is used to the module internal
pull-up resistor. It also increases the
level's adaptability in case of open
drain. But in some cases, it may need
external pull-up resistor.
The transmit & receive module work in
mode 0, whose delay time is invalid &
can be arbitrary value.
The transmitter works in mode 1 can
transmit the preamble code of the
corresponding time continuously.
When the receiver works in mode 2, the
time means the monitor interval time
(wireless wake-up). Only the data from
transmitter that works in mode 1 can be
received.
After turn off FEC, the actual data
transmission
anti-interference ability decreases. Also
the transmission distance is relatively
short.
Both communication parties must keep
on the same pages about turn-on or
turn-off FEC.
Power
and
current
relationship, and the power supply efficiency
is the highest at the maximum power; The
current does not decrease proportionally as
rate
increases
while
have
a
non-linear
15
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