Ebyte E22-900M22S, Руководство пользователя

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Chengdu Ebyte Electronic Technology Co., Ltd. E22-900M22S User manual
Copyright ©2012–2018, Chengdu Ebyte Electronic Technology Co.,Ltd.
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1.Overview
1.1 Introduction
The E22-900M22S is based on the SX1262, a new generation of LoRa TM RF chip manufactured by Semtech, USA.
It is an ultra-small and self-developed 915MHz SMD LoRa TM wireless module.
Because it adopted the original SX1262 as main core, so the anti-interference performance and communication
distance have been further improved compared to the previous generation LoRaTM transceiver.Due to its new LoRaTM
modulation technology, the anti-interference performance and communication distance are far superior to the current
FSK and GFSK modulation products. This module is mainly for smart home, wireless meter reading, scientific and
medical research, and long distance wireless communication equipment. The RF performance and components selection
are all in accordance with industrial-grade standards and this products obtained FCC, CE and RoHS certification already
and so users do not need to worry about the performance. Adopted industrial grade high precision 32MHz crystal, the
product can cover an ultra-wide frequency range of 902~928MHz and is backward compatible with SX1278 and
SX1276.
Since the module is a RF transceiver module only, users need to use the MCU driver or use a dedicated SPI debug tool.
1.2 Features
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Communication distance tested is up to 7km
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Maximum transmission power of 160mW, software multi-level adjustable
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Support the global license-free ISM 915MHz band
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Support air date rate of 0.018-62.5kbps in the LoRa TM mode
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Support 300kpbs in the FSK mode;
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Compatible with the transceiver of SX1278/SX1276;
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With large capacity, FIFO supports 256Byte data cache.;
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New SF5 spreading factor to support dense networks;
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Support 2.5V~3.7V power supply, more than 3.3V power supply can guarantee the best performance;
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Industrial grade standard design, support -40 ~ 85 °C for working over a long time
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IPEX and stamp hole are optional, which is convenient for secondary development and integration.