Ebyte E32-433T20D - Page 15

Chengdu Ebyte Electronic Technology Co,;Ltd E32-433T20DC user manual
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd. 14
0
1
8O1
1
0
8 E1
1
1
8N1 (equal to 00)
5
4
3
T T L UART baud rate（bps）
 UART baud rate can be different
between communication parties
 The UART baud rate has nothing to do
with wireless transmission parameters
& won’t affect the wireless transmit /
receive features.
0
0
0
1200
0
0
1
2400
0
1
0
4800
0
1
1
9600 (default)
1
0
0
19200
1
0
1
38400
1
1
0
57600
1
1
1
115200
2
1
0
Air data rate（bps）
 The lower the air data rate, the longer
the transmitting distance, better
anti-interference performance and
longer transmitting time
 The air data rate must keep the same
for both communication parties.
0
0
0
0.3k
0
0
1
1.2k
0
1
0
2.4k (default)
0
1
1
4.8k
1
0
0
9.6k
1
0
1
19.2k
1
1
0
19.2k (same to 101)
1
1
1
19.2k (same to 101)
General Specifications
Except for E32 (400T20S)
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
T ransparent 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
T XD and AUX push-pull outputs, RXD pull-up inputs
0
T XD、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
0
0
0
250ms (default)
0
0
1
500ms
0
1
0
750ms