Ebyte E220-400T22D - Overview; 1.1 Introduction; 1.2 Features; 1.3 Application

Chengdu Ebyte Electronic Technology Co., Ltd. E220-900T22D User Manual
Copyright ©2012–2020，Chengdu Ebyte Electronic Technology Co., Ltd.
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1. Overview
1.1 Introduction
E220-400T22D adopts a new generation of LoRa spread spectrum
technology and a wireless serial port module (UART) designed based on the
LLCC68 chip scheme. It has a variety of transmission methods, works in the
(
410.125～493.125MHz
) frequency band (default 433.125MHz), TTL level output,
compatible with 3.3V and 5V IO port voltage.
E220-400T22D adopts a new generation of LoRa spread spectrum technology,
supports air wake-up, carrier sense, communication key and other functions,
supports sub-package length setting, and Ebyte provides customized development
services.
1.2 Features
 The new LoRa spread spectrum modulation technology developed based on LLCC68, it brings a longer communication distance
and stronger anti-interference ability;
 Support users to set the communication key by themselves, and it cannot be read, which greatly improves the confidentiality of
user data;
 Support LBT function, monitor the channel environment noise before sending, which greatly improves the communication
success rate of the module in harsh environments;
 Support RSSI signal strength indicator function for evaluating signal quality, improving communication network, and ranging;
 Support air wakeup, that is ultra-low power consumption, suitable for battery-powered applications;
 Support point to point transmission, broadcast transmission, channel sense;
 Support deep sleep, the power consumption of the whole machine is about 5uA in this mode;
 The module has built-in PA+LNA, and the communication distance can reach 5km under ideal conditions;
 The parameters are saved after power-off, and the module will work according to the set parameters after power-on;
 Efficient watchdog design, once an exception occurs, the module will automatically restart and continue to work according to the
previous parameter settings;
 Support the bit rate of 2.4k～62.5kbps;
 Support 3.0～5.5V power supply, power supply greater than 5V can guarantee the best performance;
 Industrial standard design, supporting long-term use at -40～+85℃;
 SMA antenna interface.
1.3 Application
 Home security alarm and remote keyless entry;
 Smart home and industrial sensors;
 Wireless alarm security system;
 Building automation solutions;
 Wireless industrial-grade remote control;
 Advanced Meter Reading Architecture (AMI);