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E32-900M30S

SX1276 868/915MHz SPI SMD Wireless Module

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Summary of Contents for E32-400T20S

Page 1: ...1 E32 900M30S SX1276 868 915MHz SPI SMD Wireless Module ...

Page 2: ... Size and pin definition 6 4 Basic operation 7 4 1 Hardware design 7 4 2 Programming 8 5 Basic application 9 5 1 Hardware design and circuit schematic diagram 9 6 FAQ 9 6 1 Communication range is too short 9 6 2 Module is easy to damage 10 6 3 BER Bit Error Rate is high 10 7 Production guidance 11 7 1 Reflow soldering temperature 11 7 2 Reflow soldering curve 11 8 E32 series 12 9 Antenna recommend...

Page 3: ...oduction use modification or disclosure to third parties of this document or any part thereof without the express permission of EBYTE is strictly prohibited The information contained herein is provided as is and EBYTE assumes no liability for the use of the information No warranty either express or implied is given including but not limited with respect to the accuracy correctness reliability and ...

Page 4: ...pport data transmission rate between 0 018K and 37 5Kbps in LoRaTM mode Support data transmission rate of up to 300kbps in FSK mode Support for multiple modulation mode LoRaTM FSK GFSK MSK GMSK OOK Large FIFO capacity support 256Byte data cache Support 3 3V 5 5V power supply power supply over 5 V can guarantee the best performance Industrial grade standard design support 40 85 C for working over a...

Page 5: ...tly increase Due to its advanced LoRaTM modulation technology its anti interference performance and communication distance are far superior to the current FSK and GFSK modulation products This module is mainly aimed at intelligent home wireless meter reading scientific research and medical treatment and medium and long distance wireless communication equipment As the RF performance and component s...

Page 6: ...5 5 5 5 5 V ensures output power Communication level V 3 3 Operating temperature 40 85 Industrial grade Operating frequency MHz 850 868 915 931 Power Consump tion TX current mA 650 RX current mA 19 Sleep current μA 2 Max TX power dBm 30 Receiving sensitivity dBm 123 124 125 Air data rate is 1 2 kbps Main parameter Description Remark Reference distance 10km Test condition clear and open area antenn...

Page 7: ...RXEN Input RF switch receiving control pin connected to external MCU IO high level effective 7 TXEN Input RF switch receiving control pin connected to external MCU IO high level effective 8 DIO2 Input Output General IO port see SX1276 manual for details 9 VCC Power supply range 3 3 5 5V external ceramic filter capacitor is recommended 10 VCC Power supply range 3 3 5 5V external ceramic filter capa...

Page 8: ...the recommended supply voltage if exceeding the maximum the module will be permanently damaged Please check the stability of the power supply Voltage can not fluctuate greatly and frequently When designing the power supply circuit for the module it is often recommended to reserve more than 30 of the margin so the whole machine is beneficial for long term stable operation The module should be as fa...

Page 9: ...tal case which will cause the transmission distance to be greatly weakened 4 2 Programming The core of this module is SX1278 SX1276 PA LNA its driving method is completely equivalent to SX1278 SX1276 the user can operate according to the SX1278 SX1276 chip manual DIO0 DIO1 DIO2 DIO3 DIO4 and DIO5 are general I O ports which can be configured into a variety of functions See SX1278 manual for detail...

Page 10: ...bsorb and reflect wireless radio wave so the performance will be poor when testing near ground Sea water has great ability in absorbing wireless radio wave so performance will be poor when testing near the sea The signal will be affected when the antenna is near metal object or put in a metal case Power register was set incorrectly air data rate is set as too high the higher the air data rate the ...

Page 11: ... electrostatic susceptibility Please ensure the humidity is within limited range some parts are sensitive to humidity Please avoid using modules under too high or too low temperature 6 3 BER Bit Error Rate is high There are co channel signal interference nearby please be away from interference sources or modify frequency and channel to avoid interference SPI clock waveform is not standard check wh...

Page 12: ...n96 5 Ag3 Cu0 5 Preheat Temperature min Tsmin 100 150 Preheat temperature max Tsmax 150 200 Preheat Time Tsmin to Tsmax ts 60 120 sec 60 120 sec Average ramp up rate Tsmax to Tp 3 second max 3 second max Liquidous Temperature TL 183 217 Time tL Maintained Above TL 60 90 sec 30 90 sec Peak temperature Tp 220 235 230 250 Aveage ramp down rate Tp to Tsmax 6 second max 6 second max Time 25 to peak tem...

Page 13: ...commendation The antenna is an important role in the communication process A good antenna can largely improve the communication system Therefore we recommend some antennas for wireless modules with excellent performance and reasonable price Model No Type Frequency Gain Hright Cable Interface Function feature Hz dBi mm cm TX915 JZ 5 Rubber antenna 915M 2 0 50 SMA J Short straight omnidirectional TX...

Page 14: ...scription Issued by 1 0 2021 5 07 Initial version Linson About us Technical support support cdebyte com Documents and RF Setting download link www ebyte com Thank you for using Ebyte products Please contact us with any questions or suggestions info cdebyte com Phone 86 028 61399028 Web www ebyte com Address B5 Mould Park 199 Xiqu Ave High tech District Sichuan China ...

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