Ebyte E28-2G4M20S, Руководство пользователя, Страница: 4 / 13

Chengdu Ebyte Electronic Technology Co., Ltd. E28-2G4M20S User
Manual
Copyright ©2012–2021
，
Chengdu Ebyte Electronic Technology Co.,Ltd. 3
1.Overview
1.1 Brief introduction
E28-2G4M20S is a 2.4GHz bluetooth module designed by Chengdu Ebyte,with long distance and ultra-low power
consumption. E28-2G4M20S is small-sized SMD module(pin spacing 1.27mm),built-in PCB antenna and IPEX antenna.
High precision 52MHz crystal is used.
Based on the original imported RF chip SX1278 from Semtech,the IC
SX1280 features multiple physical layers and various modulating methods
such as LoRa, FLRC and GFSK, the special modulating methods and
processing ways enable longer operating range under LoRa and FLRC
modulating methods, and the GFSK method covers BLE protocol. The
outstanding ultra-low power consumption and the DC-DC and
Time-of-Flight on chip make the chip much more capable for smart home,
security system, tracking and locating, wireless distance measuring,
wearable electronics, smart bracelet and health management & etc. SX1280 supports RSSI,users need to conduct a
secondary development based on their own demands;SX1280 also integrates time of flight for ranging functions.
Since the module is a pure RF transceiver module, you need to use the MCU driver or a dedicated SPI debug tool.
1.2 Features
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Communication distance tested is up to 6km
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Maximum transmission power of 100mW, software multi-level adjustable
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Compatible with BLE protocol
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Support the global license-free ISM 2.4GHz band
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Support air date rate of 0.476kbps
～
2Mbps
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Support multiple modulation methods, (GFSK Mode,FLRC Mode,LoRa Mode)
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Large capacity FIFO, supports 256Byte data buffer
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Support 1.8V~3.6V power supply, power supply over 3.3V 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 PCB antenna optional, good for secondary development and integration
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The air data rate is adjustable, the maximum air data rate is up to 1.3 Mbps in FLRC mode
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Excellent anti-blocking properties
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Ranging, with Time-of-flight function.
1.3 Application
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Home security alarm and remote keyless entry
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Smart home and industrial sensors
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Wireless alarm security system
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Building automation solutions
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Wireless industrial-grade remote control
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Health care products
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Advanced Meter Reading Architecture(AMI)
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Automotive industry applications.