Chengdu Ebyte Electronic Technology Co.,Ltd.
E220-400R30D User Manual
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd.
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1 Introduction
1.1 Brief Introduction
The E220-400R30D uses a new generation of LoRa spread-band
technology based on the RS485 module designed for the LLCC68 chip
scheme with a variety of transmission modes. It operates in the (410.125
to 493.125MHz) frequency (default 433.125MHz) and supports DC 5.0
power supply. Factory equipped with a dedicated power-up machine,
power-up automatic identification. Support transmission, fixed-point
transmission mode, can be paired with the E220 same frequency series for low-power applications.
1.2 Features
Based on LLCC68, the new LoRa amplification modulation technology, longer communication distance and
stronger anti-jamming capability.
Support users to set their own communication keys, and can not be read, greatly improve the confidentiality of user
data;
Support LBT function, listening to channel environment noise before sending the data, can greatly improve the
module in the harsh environment of communication success rate;
Support RSSI signal strength indication function, used to evaluate signal quality, improve communication network,
measure the distance;
Support fixed-point transmission, broadcast transmission, channel monitoring;
Support the global license-free ISM 433MHz frequency and 470MHz meter reading frequency;
When powered down, the parameters will be saved automatically, and the module will work according to the set
parameters after re-powering up;
Efficient gate-keeper design, in the event of an exception, the module will restart automatically and continue to
work in accordance with the previous parameter settings;
Supports data transfer rates from 2.4k to 62.5kbps;
Industrial grade standard design, support -40 ~ 85 °C for working over a long time;
SMA antenna interface.
1.3 Application
Home security alarm and remote keyless entry;
Smart homes and industrial sensors;
Wireless alarm security system;
Building automation solutions;
Wireless industrial-grade remote control;
Advanced Meter Reading Architecture(AMI);
Automotive industry applications.