Ebyte E32 Series User Manual page 21

SX1278 Wireless Module
For example: The meaning of No.3 "SPED" byte：
The binary bit of the byte
Configures by user
Meaning
Corresponding hexadecimal
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd.
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5，4，3 wireless wake-up time（for the receiver,
it means the monitor interval time ,while for the
transmitter it means continuously
preamble code time.）
000：250ms（default）
001：500ms
010：750ms
011：1000ms
100：1250ms
101：1500ms
110：1750ms
111：2000ms
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2， FEC switch
0：Turn off FEC
1：Turn on FEC（Default）
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1, 0 transmission power (approximation)
00： 30dBm（Default）
01： 27dBm
10： 24dBm
11： 21dBm
7
0
UART parity bit 8N1
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The transmit & receive module work in mode 0,

whose delay time is invalid & can be arbitrary
sending value.
The transmitter works in mode 1 can transmit the

preamble
continuously.
When the receiver works in mode 2, the time

means
wake-up). Only the data from transmitter that
works in mode 1 can be received.
The wake-up time set by transmitter cannot be less

than the monitor
otherwise, it may lead to data loss. In case of
two-way communication, both parties should keep
the wake-up time the same.
The longer the wake-up time, the lower the

average receive current consumption.
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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.
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The external power must make sure the ability of

current output more than 1.5A and ensure the
power supply ripple within 100mV.
Low power transmission is not recommended due

to its low power supply efficiency.
6 5 4
0 0 1
UART baud rate is 9600
1
E32 Series User Manual
code of the corresponding
the monitor interval time
interval time of receiver;
3 2 1
1 0 1
Air data rate is 2.4k
A
21 / 24
time
(wireless
0
0