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Chengdu Ebyte Electronic Technology Co.,Ltd.

E32-900M30SA User Manual

Copyright ©2012–2021

Chengdu Ebyte Electronic Technology Co.,Ltd.

9

5 Basic application

5.1 Hardware design and circuit schematic diagram

6

FAQ

6.1 Communication range is too short

The communication distance will be affected when obstacle exists;

Data lose rate will be affected by temperature, humidity and co-channel interference;

The ground will absorb 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 shorter the
distance);

The power supply low voltage under room temperature is lower than 2.5V, the lower the voltage, the lower the
transmitting power;

Due to antenna quality or poor matching between antenna and module.

Summary of Contents for E32 Series

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 s...

Page 3: ...duction 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...

Page 4: ...port 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 Lar...

Page 5: ...ly 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 i...

Page 6: ...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 Sle...

Page 7: ...XEN 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...

Page 8: ...e 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 design...

Page 9: ...al 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 t...

Page 10: ...sorb 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...

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...

Page 12: ...96 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 m...

Page 13: ...ommendation 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 exc...

Page 14: ...cription 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 co...

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