Ebyte E19 Series User Manual Download | Manualshive

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SX127X RF Module

User Manual of E19 Series Modules

Copyright ©2012–2018，Chengdu Ebyte Electronic Technology Co.,Ltd

9

3.Recommended circuit diagram

Brief introduction of connection between module and MCU (STM8L)

3.1. E19 (433M20S2)

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Summary of Contents for E19 Series

Page 1: ...e with the continuous improvement of the product Please refer to the latest version of the instruction Chengdu Ebyte Electronic Technology Co Ltd reserves all rights of final interpretation and modifi...

Page 2: ...he 20dBm module integrated the industrial crystal oscillator accuracy is less than 10ppm with stable batch production and widely used for utilities IOT transformation and smart home The related RF par...

Page 3: ...sensitivity 5 1 3 3 Recommended Frequency 6 1 4 TESTED PARAMETERS 6 1 4 1 Tested distance 6 2 MECHANICAL PROPERTIES 7 2 1 E19 433M20SC E19 868M20S E19 915M20S 7 2 1 1 Dimensions 7 2 1 2 Pin definitio...

Page 4: ...at the instant of transmitting may be high but the total energy consumed may be lower due to very short transmitting time When using external antenna the impedance matching degree at different freque...

Page 5: ...M20S 1 8 3 3 3 6 V DC E19 868M30S 3 3 5 0 5 5 V DC E19 915M20S 1 8 3 3 3 6 V DC E19 915M30S 3 3 5 0 5 5 V DC 1 2 5 Communication level Model No Min Typ Max Unit Remark E19 433M20SC 1 8 3 3 3 6 V DC If...

Page 6: ...mance of the module can reach the standard if it works in recommended operating frequency It is recommended to avoid the crowded frequencies such as 433 0MHz 868 0MHz 915MHz and other integer frequenc...

Page 7: ...tails in SX1278 data sheet 7 DIO0 Input Output Configurable IO interface See more details in SX1278 data sheet 8 RST Input Reset 9 NC Not connect 10 GND Input Ground electrode connected to the power r...

Page 8: ...Please find more on SX1276 datasheet 8 RST Input Reset 9 NC Not connect 10 GND Configurable IO port Please find more on SX1276 datasheet 11 VCC Power supply 4 75 5 5V Ceramic filter capacitor is advi...

Page 9: ...DIO2 DIO2 Input Output Configurable IO port Please find more on SX1278 datasheet 8 DIO3 DIO3 Input Output Configurable IO port Please find more on SX1278 datasheet 9 NC DIO4 Not connect 10 DIO5 DIO5...

Page 10: ...dule User Manual of E19 Series Modules Copyright 2012 2018 Chengdu Ebyte Electronic Technology Co Ltd 9 3 Recommended circuit diagram Brief introduction of connection between module and MCU STM8L 3 1...

Page 11: ...high level RXEN pin is low level when transmitting make sure RXEN pin is high level TXEN pin is low level when receiving make sure TXEN RXEN pin is low level before turning off The register configurat...

Page 12: ...ned badly Power register is set wrongly or air data rate too high The higher the air data rate the closer the distance In room temperature the power voltage will be less than 2 5V The lower the the po...

Page 13: ...ntinuous improvement of hardware and software this manual may subject to change without notice Please refer to the latest version Users can follow the product news on our official website so as to gai...

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