SX1278 Wireless Module
E32 Series User Manual
Copyright ©2012–2017, Chengdu Ebyte Electronic Technology Co., Ltd.
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1. Features
LoRa:
LoRa spread-spectrum means the transmitting distance is much longer than before. Confidentiality is high and the
possibility of being intercepted is extremely low Strong ability of anti-interference, which has a strong inhibitory capacity for the
Co-Channel Interference and all kinds of noises, and with excellent performance of anti multipath fading.
Ultra-low power consumption:
It supports WOR to reduce overall power consumption. In power-saving mode(Mode 2), it can
regulate overall power consumption by setting receiving response delay; The maximum receiving response delay can be configured
as 2000ms， and the average current is about 30uA.
Fixed transmission
: Module can communicate with other modules which work in different channels and addresses, it is easy for
networking and repeater. For example: module A transmits AA BB CC to module B (address: 0x00 01, channel: 0x80), HEX format is
00 01 80 AA BB CC (00 01 refers to the address of module B, 80 refers to the channel of module B), then module B receives AA BB CC
(only module B).
Broadcast transmission:
Set the module address as 0xFFFF, then the module can communicate with other modules in same
channel.
FEC:
Forward Error Correction, high coding efficiency & good correction performance. In the case of sudden interference, it can
correct the interfered data packets proactively, so that the reliability & transmission range are improved correspondingly. Without
FEC, those data packets can only be dropped.
Sleep mode:
When the module works in sleep mode (mode 3), transmitting & receiving is not available, while the configuration is
available. The typical current is 6.0uA in this mode.
Watchdog:
Module with a built-in watchdog, layout and precise time, once an exception occurs, the module will restart in 0.107
seconds, and will continue to work on the previous parameter Settings.
Parameter saving:
The parameters will be saved after setting and won’t be lost when powers-off. After power-up again,
modules work as the previous parameters.
Application:
As free frequency, 433M can be used directly. With the capability of penetration and diffraction, this module is
suitable for the environment with small packet, long transmission distance and vulnerable to interference.
