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Chengdu Ebyte Electronic Technology Co.,Ltd.

E32-400M20S User Manual

Copyright ©2012–2021

，

Chengdu Ebyte Electronic Technology Co.,Ltd.

7

Pin No.

Item

Direction

Description

1

GND

-

Ground

2

GND

-

Ground

3

GND

-

Ground

4

GND

-

Ground

5

GND

-

Ground

6

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

GND

-

Ground

11

GND

-

Ground

12

GND

-

Ground

13

DIO3

Input/Output

General IO port (see SX1276 manual for details)

14

DIO4

Input/Output

General IO port (see SX1276 manual for details)

15

DIO5

Input/Output

General IO port (see SX1276 manual for details)

16

GND

-

Ground

17

DIO1

Input/Output

General IO port (see SX1276 manual for details)

18

DIO0

Input/Output

General IO port (see SX1276 manual for details)

Summary of Contents for E32-400M20S

Page 1: ...1 E32 400M20S SX1278 433 470MHz SPI SMD Wireless Module ...

Page 2: ...ize and pin definition 6 4 Basic operation 8 4 1 Hardware design 8 4 2 Programming 9 5 Basic application 10 5 1 Hardware design and circuit schematic diagram 10 6 FAQ 10 6 1 Communication range is too short 10 6 2 Module is easy to damage 10 6 3 BER Bit Error Rate is high 11 7 Production guidance 12 7 1 Reflow soldering temperature 12 7 2 Reflow soldering curve 12 8 E32 series 13 9 Antenna recomme...

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 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 f...

Page 4: ...upport 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 ...

Page 5: ... 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 selection are in accordance with industrial standards and the product has obtained FCC CE RoHS and other international authoritative certification reports Since th...

Page 6: ...ng voltage V 1 8 3 3 3 6 5 5 V ensures output power Communication level V 3 3 Operating temperature 40 85 Industrial grade Operating frequency MHz 410 493 Power Consump tion TX current mA 110 RX current mA 17 Sleep current μA 2 Max TX power dBm 20 Receiving sensitivity dBm 145 147 148 Air data rate is 1 2 kbps Main parameter Description Remark Reference distance 5km Test condition clear and open a...

Page 7: ...Chengdu Ebyte Electronic Technology Co Ltd E32 400M20S User Manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 6 3 Size and pin definition ...

Page 8: ...d 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 GND Ground 11 GND Ground 12 GND Ground 13 DIO3 Input Output General IO port see SX1276 manual for details 14 DIO4 Input Output General IO port see SX1276 manual for details 15 DIO5 Input Output General IO p...

Page 9: ...nterference Bottom Layer High frequency digital routing high frequency analog routing and power routing must be avoided under the module If it is necessary to pass through the module assume that the module is soldered to the Top Layer and the copper is spread on the Top Layer of the module contact part well grounded it must be close to the digital part of the module and routed in the Bottom Layer ...

Page 10: ...red into a variety of functions See SX1278 manual for details If not used can be suspended NRST TXEN and RXEN pins must be connected wherein NRST controls the reset of the chip TXEN and RXEN pins control the RF switch Pay attention to good grounding large area of ground small ripple of power supply filter capacitor should be added and close to module VCC and GND pins as far as possible SPI communi...

Page 11: ...r 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 tempera...

Page 12: ...mited 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 whether there is interference on the SPI line SPI bus wiring should not...

Page 13: ...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 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 temp...

Page 14: ...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 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 TX9...

Page 15: ...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 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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