Users Manual

Chengdu Ebyte Electronic Technology Co., Ltd. E22-900T30S User manual
Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd.
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1. Overview
1.1 Introduction
E22-900T30S is a wireless serial port module (UART) based on SEMTECH's SX1262 RF chip. It has
multiple transmission modes, LoRa modulation, TTL level output, compatible with 3.3V and 5V IO port voltage.
With PA and LNA, the power is 1W based on originally imported SX1262 module, the receiving sensitivity
is improved accordingly. LoRa modulation will bring longer communication distance, and has the advantages
of concentrated power density and strong anti-interference ability. It is different from FSK and GFSK.
The module has data encryption. Data transmitted over the air, with randomness, makes data interception
meaningless through strict encryption and decryption algorithms. The module reserves multiple IO interfaces to
provide custom development services.It supports packet length setting and also supports different real-time
and data packet.
The module just uses the modulation method of lora, not the technology of lora.
1.2 Features
 Communication distance tested is up to 10km
 Maximum transmission power of 1W, software multi-level adjustable；
 Support the global license-free ISM 868/915MHz band；
 Support air date rate of 0.3kbps～62.5kbps；
 Support new generation LoRa modulation based on SX1262；
 Support RSSI for evaluating signal quality, improving communication network, and ranging;
 Support LBT for monitoring channel environmental noise before sending data, and for improving