Ebyte E220-900T22S, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co., Ltd. E220-900T22S User Manual
Copyright ©2012–2020,
Chengdu Ebyte Electronic Technology Co., Ltd.
4
1. Overview
1.1 Introduction
E220-900T22S is a new generation of LoRa wireless serial port module (UART), based on
Semtech's original LLCC68 chip design. It has a variety of transmission methods, works in
the (850.125
～
930.125MHz) frequency band (default 873.125MHz), LoRa spread spectrum
technology, TTL level output, compatible with 3.3V and 5V IO port voltage.
E220-900T22S adopts a new generation of LoRa solution. Compared with the traditional
SX1276 solution, the transmission distance is longer, the speed is faster, and the power
consumption is lower; it supports functions such as air wake-up, carrier monitoring, and
communication key, and supports sub-packet length setting. Ebyte can provide customized
development services. Compared with the LLCC68 scheme, this scheme has a high cost
performance advantage. The product can cover an ultra-wide frequency range of 850
～
930MHz.
1.2 Features

Using LLCC68 chip solution, it has significant advantages of low power consumption, fast speed and long distance;

Under ideal conditions, the communication distance can reach 5 km;

The maximum transmit power is 22 dBm, and the software is multi-level adjustable;

Support users to set the communication key by themselves, and it cannot be read, which greatly improves the confidentiality of
user data;

Support RSSI signal strength indicator function for evaluating signal quality, improving communication network, and ranging;

Support air wakeup, that is, ultra-low power consumption function, suitable for battery-powered applications;

Support fixed-point transmission, broadcast transmission, channel monitoring;

Support the global ISM 868/915MHz frequency band;

The parameters are saved after power off, and the module will work according to the set parameters after power on again;

Efficient watchdog design. Once an exception occurs, the module will automatically restart and continue to work according to
the previous parameter settings;

Support the data transmission rate of 2.4k
～
62.5kbps;

Support 2.3~5.5V power supply, power supply greater than 5V can guarantee the best performance;

Industrial standard design, supporting long-term use at -40
～
+85℃;

Dual antennas are optional (IPEX/stamp hole), which is convenient for users to develop and integrate.
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
；

Health care products
；

Advanced Meter Reading Architecture(AMI)
；

Automotive industry applications.