SX1276 Wireless Module User Manual of E32(915T30S)
Series Modules
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd. 11 / 14
1
1
0
57600bps
1
1
1
115200bps
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
0.3kbps
0
0
1
1.2kbps
0
1
0
2.4kbps（Default）
0
1
1
4.8kbps
1
0
0
9.6kbps
1
0
1
19.2kbps
1
1
0
19.2kbps（equal to 101）
1
1
1
19.2kbps（equal to 101）
4
CHAN
7
6
5
N/A
0
Communication channel
00H-1FH，for 900 ~ 931MHz
4-0：Communication channel, default 06H（915MHz）
5
OPTION
7
Fixed transmission（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（default）
1
Fixed transmission mode
6
IO drive mode(the 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)
For E44-TTL-100
