Chengdu Ebyte Electronic Technology Co.,Ltd.
E280-2G4T12S User Manual
Copyright ©2012–2021
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Chengdu Ebyte Electronic Technology Co.,Ltd.
4
1 Introduction
1.1 Brief Introduction
E280-2G4T12S is a wireless serial port module (UART) based on
SEMTECH's SX1280 RF chip, transparent transmission mode, working
in 2.4GHz frequency band, with LoRa, FLRC and GFSK three
modulation and demodulation technologies, TTL level output,
compatible with 3.3 IO port voltage of V and 5V.
E280-2G4T12S adds a wireless ranging function on the basis of the traditional serial port module. Based on an
improved binary backoff algorithm, it uses adaptive frequency hopping technology to integrate Kalman filtering, which
can effectively resist wireless interference and improve the ranging accuracy.
LoRa direct sequence spread spectrum technology will bring longer communication distance, and has the
advantages of wider power spectrum and strong anti-interference ability. The module has a hardware FEC forward error
correction algorithm, which has high coding efficiency and strong error correction ability. In the case of sudden
interference, it can actively correct the interfered data packet, which greatly improves the reliability and transmission
distance.
The module has data encryption and compression functions. The data transmitted by the module in the air is random,
and the data interception is meaningless through strict encryption and decryption algorithms. The data compression
function has the possibility to reduce the transmission time, reduce the probability of interference, and improve the
reliability and transmission efficiency.
1.2 Features
Support multiple modulation methods of LoRa, FLRC, GFSK;
Support high-speed continuous transmission at 460800 serial port baud rate, data is not sub-packaged, and the
package length is not limited;
Support RSSI signal strength reading;
Support fixed-point transmission/broadcast transmission/channel monitoring;
Support wireless ranging function, ranging accuracy of ±2 meters;
Under ideal conditions, the communication distance can reach 3km;
The maximum transmission power is 18mW, and the software is multi-level adjustable;
Support the global license-free ISM 2.4GHz frequency band;
Support the data air transmission rate of 1kbps
～
2Mbps;
Support low power consumption mode, suitable for battery applications;
Support 2.3~5.5V power supply, power supply greater than 5V can guarantee the best performance;
