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Chengdu Ebyte Electronic Technology Co., Ltd.

E28-2G4M20S User

Manual

Copyright ©2012–2021

，

Chengdu Ebyte Electronic Technology Co.,Ltd.

5

3.Size and pin definition

Pin

No

Pin item

Pin direction

Pin application

1

VCC

-

Power supply: 1.8~3.6V (Ceramic filter capacitor is advised to add)

2

GND

-

Ground, connecting to power supply reference ground

3

MISO_TX

Output

SPI data output pin,can be used as UART transmitting pin

4

MOSI_RX

Input

SPI data input pin,can be used as UART receiving pin

5

SCK_RTSN

Input

SPI clock input pin,can be used as UART request transmitting pin

6

NSS_CTS

Input

Module chip selection pin, used to start a SPI communication; and can be used as
UART clearing transmitting pin(refer to SX1280 Datasheet)

7

GND

-

Ground, connecting to power supply reference ground

8

RX_EN

Input

LNA controlling pin. Valid under high level

9

TX_EN

Input

PA controlling pin. Valid under high level

10

GND

-

Ground, connecting to power supply reference ground

11

NRESET

Input

Chip reset initiation input pin, valid under low level, built-in 50k pull-up resistor

12

BUSY

Output

Status indication (refer to SX1280 Datasheet)

13

DIO1

Input / Output

Configurable IO port

（

Please find more on SX1280 datasheet

）

14

DIO2

Input / Output

Configurable IO port

（

Please find more on SX1280 datasheet

）

15

DIO3

Input / Output

Configurable IO port

（

Please find more on SX1280 datasheet

）

Содержание E28-2G4M20S

Страница 1: ...E28 2G4M20S User Manual SX1280 2 4GHz 100mW SMD Wireless Module ...

Страница 2: ...meter 4 3 Size and pin definition 5 4 Basic operation 6 4 1 Hardware design 6 4 2 Software editing 7 5 Basic application 7 5 1 Basic circuit diagram 7 6 FAQ 8 6 1 Communication range is too short 8 6 2 Module is easy to damage 8 6 3 BER Bit Error Rate is high 8 7 Production guidance 8 7 1 Reflow soldering temperature 8 7 2 Reflow soldering curve 9 8 E28 Series 9 9 Antenna guidance 10 9 1 Antenna r...

Страница 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...

Страница 4: ...velopment based on their own demands SX1280 also integrates time of flight for ranging functions 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 6km Maximum transmission power of 100mW software multi level adjustable Compatible with BLE protocol Support the global license free ISM 2 4G...

Страница 5: ...g temperature 40 85 Industrial design Operating frequency MHz 2400 2430 2500 Support ISM band Power consum ption TX current mA 140 Instant power consumption RX current mA 10 Sleep current μA 2 0 Software is shut down Max Tx power dBm 19 20 21 Receiving sensitivity dBm 0 125k 2M air data rate 595kbps Air data rate LoRa24 bps 0 476k 202K Programming FLRC bps 130k 1 3M Programming FSK bps 125k 2M Pro...

Страница 6: ...S Input Module chip selection pin used to start a SPI communication and can be used as UART clearing transmitting pin refer to SX1280 Datasheet 7 GND Ground connecting to power supply reference ground 8 RX_EN Input LNA controlling pin Valid under high level 9 TX_EN Input PA controlling pin Valid under high level 10 GND Ground connecting to power supply reference ground 11 NRESET Input Chip reset i...

Страница 7: ...ontact part well grounded it must be close to the digital part of the module and routed in the Bottom Layer Assuming the module is soldered or placed over the Top Layer it is wrong to randomly route over the Bottom Layer or other layers which will affect the module s spurs and receiving sensitivity to varying degrees It is assumed that there are devices with large electromagnetic interference arou...

Страница 8: ... be disconnected The SPI query mode can be used to obtain the interrupt status However it is recommended to use the external interrupt of the MCU After SX1280 restores IDLE mode or configures sleep mode it is recommended that the power configuration table be reinitialized It is recommended that the power output parameter of SX1280 set to 2dBm At this time the output power of the module can be 20dB...

Страница 9: ...mage Please check the power supply source ensure it is 2 0V 3 6V voltage higher than 3 6V will damage the module Please check the stability of power source the voltage cannot fluctuate too much Please make sure antistatic measure are taken when installing and using high frequency devices have electrostatic susceptibility Please ensure the humidity is within limited range some parts are sensitive t...

Страница 10: ... phase line 60 90 sec 30 90 sec Peak temperature Tp Peak temp 220 235 230 250 Aveage ramp down rate Tp to Tsmax Aveage ramp down rate 6 second max 6 second max Time 25 to peak temperature Time to peak temperature for 25 max 6 minutes max 8 minutes 7 2 Reflow soldering curve 8 E28 Series Model No IC Frequency Hz Tx power dBm Distance km Package Size Antenna E28 2G4T12S SX1280 2 4G 12 5 3 SMD 17 5 2...

Страница 11: ...me antennas for wireless modules with excellent performance and reasonable price Model No Type Frequency Hz Interface Gain dBi Height Cable Function feature TX2400 NP 5010 FCB antenna 2 4G SMA J 2 50 10mm FPC soft antenna TX2400 XP 150 Sucker 2 4G SMA J 3 5 15cm 150cm Sucker antenna High gain TX2400 JK 20 Rubber 2 4G SMA J 3 200mm Flexible omnidirectional TX2400 JK 11 Rubber 2 4G SMA J 2 5 110mm F...

Страница 12: ... 1 10 2018 5 23 Content updated huaa 1 20 2018 9 21 Model No split Huaa 1 30 2021 3 17 Page optimization 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 Fax 028 64146160 ext 821 Web www ebyte com Address Innovation Center D347 4 XI XIN R...

Страница 13: ...Chengdu Ebyte Electronic Technology Co Ltd E28 2G4M20S User Manual Copyright 2012 2021 Chengdu Ebyte Electronic Technology Co Ltd 4 12 ...

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