Ebyte E220-400T22D, User Manual, Page: 4 / 23

Chengdu Ebyte Electronic Technology Co., Ltd. E220-900T22D User Manual
Copyright ©2012–2020
，
Chengdu Ebyte Electronic Technology Co., Ltd. 4
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);