Ebyte E32-868T20D User Manual page 15

Chengdu Ebyte Electronic Technology Co,;Ltd
7
0
0
1
1
5
0
0
0
0
1
3 SPED 1
1
1
2
0
0
0
0
1
1
1
1
7
4 CHAN
4-0, channel (410M + CHAN*1M), default 17H（433MHz）
7
0
1
OPTIO
6
5
N
1
0
5
0
0
0
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UART parity bit
6
0
1
0
1
TTL UART baud rate（bps）
4 3
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
1 0
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
General Specifications
6 5
Communication channel
Fixed transmission enabling bit（similar to MODBUS）
Transparent transmission mode
Fixed transmission mode
IO drive mode (default 1)
TXD and AUX push-pull outputs, RXD pull-up inputs
TXD、AUX open-collector outputs, RXD open-collector
inputs
4 3
0 0
0 1
1 0
8N1 (default)
8O1
8 E1
8N1 (equal to 00)
1200
2400
4800
9600 (default)
19200
38400
57600
115200
Air data rate（bps）
0.3k
1.2k
2.4k (default)
4.8k
9.6k
19.2k
19.2k (same to 101)
19.2k (same to 101)
reserved
wireless wake-up time
250ms (default)
500ms
750ms
E32-868T20D user manual
 UART mode can be different between
communication parties
 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.
 The lower the air data rate, the longer the
transmitting distance, better
performance and longer transmitting time
 The air data rate must keep the same for both
communication parties.
Except for E32 (400T20S)
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
anti-interference
14