Chengdu Ebyte Electronic Technology Co., Ltd. E22-400T30D User Manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
1. Overview
1.1 Introduction
E22-400T30D is new lora module (UART) based on SEMTECH's
SX1268 RF chip. It has multiple transmission modes working at 410.125～
493.125MHz, LoRa spread spectrum technology, TTL level output, compatible with 3.3V and 5V IO port voltage.
Compared with SX1278 , SX1268 solution has a longer transmission distance, faster speed, lower power
consumption, and smaller size. It supports functions such as wake-up in the air, wireless configuration, carrier monitoring,
automatic repeater, and communication key, and packet length setting, customized development services are available.
1.2 Features
Based on SX1268 LoRa technology, it enables longer distance and better anti-interference ability.
Automatic relay networking, multi-stage relay is suitable for ultra-long distance communication, multiple networks
running in the same area are running simultaneously;
Users to set their own communication keys and cannot be read, which greatly improves the confidentiality of user
data;
RSSI for evaluating signal quality, improving communication network, and ranging;
With LBT for monitoring channel environmental noise before sending data, and for improving communication;
Wireless parameter configuration, send command data packets wirelessly, remotely configure or read wireless
module parameters;
Wake-on-air, that is, ultra-low power consumption function, suitable for battery-powered applications;
With fixed-point transmission, broadcast transmission, and channel monitoring;
Global license-free ISM 433MHz and 470Mhz for meter reading；
In deep sleep mode, power consumption is 2uA；
With PA+LNA, communication distance tested is up to 6 km；
The parameters are saved after power-off. After power-on, the module will work according to the set parameters.
High-efficiency watchdog design, once an exception occurs, the module will automatically restart and continue to
work according to the previous parameter settings;
Air date rate of 0.3kbps～62.5kbps;
3.3V~5.5V power supply, power supply over 5.0 V can guarantee the best performance；
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