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Chengdu Ebyte Electronic Technology Co., Ltd.                                                                                                                                     E19 -868M20S  User Manual 

 

Copyright ©2012–2018

Chengdu Ebyte Electronic  Technology Co.,Ltd.

                                                                                                                       

      2 

                                                                                                                                                           

 

1.

 

Overview 

 

1.1 Brief introduction 

E19-868M20S  is  a  small-sized  868MHz  LoRa

TM

  SMD  wireless 

module,  based on the original  imported RF  chip SX1276  from  SEMTECH. 

Due to the use of the imported SX1276  as the core of the module, with 

its stable and reliable  characteristics, it  is favored by the majority  of users. 
Compared  with  the  FSK

GFSK  products, it  has made  great  progress in 

receiving  current,  receiving  sensitivity, transmitting  power,  receiving  rate 
range  and  anti-interference  ability.  The  module  is  aimed  at  smart  home, 
wireless  meter  reading,  scientific  research and  medical,  and  medium  and 
long  distance wireless  communication  equipment.  Since  RF  performance 
and component selection are in accordance with industrial standards, and the 
product has obtained FCC,  CE,  RoHS  and other international authoritative certification  reports, users  do not need to worry  
about its performance.  High precision 32MHz  crystal is used.

 

 

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 

 

Communication  distance tested is up to 5km 

 

Maximum  transmission power of 100mW,  software multi-level  adjustable

 

 

Support the global license-free ISM 868MH  band

 

 

Support air date rate of 0.018kbps~37.5kbp  in LoRa

TM

 

 

The maximu m  data transmission rate 300kpbs  in FSK  mode

 

 

Support multiple  modulation methods, LoRa

TM

/FSK/GFSK/MSK/GMSK/OOK

 

 

Large capacity FIFO,  supports 256Byte data buffer

 

 

Support 2.5V~3.6V  power supply, power supply over 3.3V  can guarantee the best performance

 

 

Industrial grade standard design, support -40  ~ 85  °C  for working over a long time

 

 

Stamp hole, good for secondary development and integration. 

1.3 Application   

 

Home  security alarm  and remote keyless entry

 

 

Smart  home and industrial sensors

   

 

Wireless alarm  security system

 

 

Building  automation solutions

 

 

Wireless industrial-grade remote  control

 

 

Health care products

 

 

Advanced Meter Reading Architecture(AMI)

 

 

Automotive industry applications. 

Summary of Contents for E19-868M20S

Page 1: ...E19 868M20S User Manual SX1276 868MHz 100mW SMD Wireless Module...

Page 2: ...Operating parameter 3 3 Size and pin definition 4 4 Basic operation 5 4 1 Hardware design 5 4 2 Software editing 6 5 Basic application 6 5 1 Basic circuit diagram 6 6 FAQ 7 6 1 Communication range is...

Page 3: ...certification reports users do not need to worry about its performance High precision 32MHz crystal is used Since the module is a pure RF transceiver module you need to use the MCU driver or a dedica...

Page 4: ...temperature 40 85 Industrial design Operating frequency MHz 862 868 893 Support ISM band Power consumpti on TX current mA 630 Instant power consumption RX current mA 14 Sleep current A 1 0 Software is...

Page 5: ...SX1278 datasheet 4 DIO3 Input Output Configurable IO port Pleasefind more on SX1278 datasheet 5 DIO2 Input Output Configurable IO port Pleasefind more on SX1278 datasheet 6 DIO1 Input Output Configura...

Page 6: ...be as far away as possible from the power supply transformers high frequency wiring and other parts with large electromagnetic interference High frequency digital routing high frequency analog routin...

Page 7: ...an refer to SX1278 SX1276 datasheet DIO0 DIO1 DIO2 DIO3 DIO4 DIO5 are configurable I O ports for various application see more in SX1276 datasheet It can be floated when not used RST TXEN RXEN must be...

Page 8: ...2 5V the lower the voltage the lower the transmitting power Due to antenna quality or poor matching between antenna and module 6 2 Module is easy to damage Please check the power supply source ensure...

Page 9: ...preheating temp 150 200 Preheat Time Tsmin to Tsmax ts Preheating time 60 120 sec 60 120 sec Average ramp up rate Tsmax to Tp Average ramp up rate 3 second max 3 second max Liquidous Temperature TL L...

Page 10: ...5 37 Stamp hole E19 915M20S SX1276 915M 20 5 SMD 17 6 25 2 Stamp hole E19 433M20SC SX1278 433M 20 5 SMD 17 6 25 2 Stamp hole 9 Antenna guidance 9 1 Antenna recommendation The antenna is an important r...

Page 11: ...itial version huaa 1 10 2018 5 23 Content updated huaa 1 20 2018 9 21 ModelNo split Huaa About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you f...

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