Chengdu Ebyte Electronic Technology Co,;Ltd
E32-433T33S user manual
Copyright ©2012–2022
，
Chengdu Ebyte Electronic Technology Co.,Ltd.
15
1
1
0
19.2k (same to 101)
1
1
1
19.2k (same to 101)
General Specifications
4
CHAN
7
6
5
reserved
Write 0
Communication channel
00H-1FH, correspond to 410~441MHz
4-0, channel (410M + CHAN*1M), default 17H
（
433MHz
）
5
OPTION
7
Fixed transmission enabling bit
（
similar to MODBUS
）
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.
0
Transparent transmission mode
1
Fixed transmission mode
6
IO drive mode (default 1)
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.
1
TXD and AUX push-pull outputs, RXD pull-up inputs
0
TXD
、
AUX open-collector outputs, RXD open-collector
inputs
5
4
3
wireless wake-up time
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.
0
0
0
250ms (default)
0
0
1
500ms
0
1
0
750ms
0
1
1
1000ms
1
0
0
1250ms
1
0
1
1500ms
1
1
0
1750ms
1
1
1
2000ms
2
FEC switch
After turn off FEC, the actual data
transmission
rate
increases
while
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.
0
Turn off FEC
1
Turn on FEC (default)
1
0
Transmission power (approximation)
Power and current have a non-linear
relationship, and the power supply efficiency
is the highest at the maximum power; The
current does not decrease proportionally as
0
0
33dBm (default)
0
1
30dBm
1
0
27dBm
