Ebyte E28-2G4M12 Series User Manual Download Page 5

Chengdu Ebyte Electronic Technology Co., Ltd.
Manual

E28-2G4M12S User

Copyright ©2012–2020

Chengdu Ebyte Electronic Technology Co.,Ltd.

1-4

Automotive industry applications.

2.

Specification and parameter

2.1 Limit parameter

Main parameter

Model

Remark

E28-2G4M12S

E28-2G4M12SX

Power supply

V

0~3.6

0~3.6

Voltage over 3.6V will cause permanent

damage to module

Blocking power

dBm

10

10

Chances of burn is slim when modules are

used in short distance

Operating temperature

-40~+85

-40~+85

-

2.2 Operating parameter

Main parameter

Model

Remark

E28-2G4M12S

E28-2G4M12SX

Operating voltage

V

1.8~3.6

1.8~3.6

≥3.3 V ensures output power

Communication level

V

3.3

3.3

For 5V TTL, it may be at risk of burning down

Operating temperature

-40~+85

-40~+85

Industrial design

Operating frequency

MHz

2400~2500

2400~2500

Support ISM band

Power

consumpti

on

TX current

mA

45

45

Instant power consumption

RX current

mA

10

10

-

Sleep current

μA

2.0

2.0

Software is shut down

Max Tx power

dBm

12~14

12~14

-

Receiving sensitivity

dBm

-128~-130

-128~-130

air data rate:595kbps

Air data rate

LoRa24

bps

0.595k~253.9k 0.595k~253.9k

Programming

FLRC

bps

260k

1.3M

Programming

FSK

bps

125k~2M

125k~2M

Programming

Main parameter

Description

Remark

Model

E28-2G4M12S

E28-2G4M12SX

Distance for reference

3000m

3000m

Test condition

clear and open area, antenna gain:

5dBi

antenna height: 2.5m

air data rate: 595kbps

FIFO

256Byte

256Byte

Max length transmitted each time

Crystal frequency

52MHz

52MHz

-

Modulation

LoRa

TM

(recommen

ded)

LoRa

TM

(recomm

ended)

GFSK Mode

FLRC Mode

LoRa Mode

Package

SMD

SMD

-

Connector

1.27mm

1.27mm

IPEX/PCB

Summary of Contents for E28-2G4M12 Series

Page 1: ...E28 2G4M12XX User Manual SX1280 2 4GHz SMD Wireless Module...

Page 2: ...2 Specification and parameter 4 2 1 Limit parameter 4 3 Size and pin definition 5 4 Basic operation 7 4 1 Hardware design 7 4 2 Software editing 7 5 Basic application 8 5 1 Basic circuit diagram 8 6...

Page 3: ...t and health management etc SX1280 supports RSSI users need to conduct a secondary development based on their own demands SX1280 also integrates time of flight for ranging functions Since the module i...

Page 4: ...gy Co Ltd Manual E28 2G4M12S User Copyright 2012 2020 Chengdu Ebyte Electronic Technology Co Ltd 1 3 Building automation solutions Wireless industrial grade remote control Health care products Advance...

Page 5: ...g down Operating temperature 40 85 40 85 Industrial design Operating frequency MHz 2400 2500 2400 2500 Support ISM band Power consumpti on TX current mA 45 45 Instant power consumption RX current mA 1...

Page 6: ...opyright 2012 2020 Chengdu Ebyte Electronic Technology Co Ltd 1 5 3 Size and pin definition THE SIZE OF E28 2G4M12S THE SIZE OF E28 2G4M12SX Communication interface SPI SPI 0 10Mbps Size 24 15 0 8 mm...

Page 7: ...ng 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 r...

Page 8: ...ed 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 receivi...

Page 9: ...y mode can be used to obtain the interrupt status However it is recommended to use the external interrupt of theMCU After SX1280 restores IDLE mode or configures sleep mode it is recommended that the...

Page 10: ...bing 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 incorrect...

Page 11: ...el to avoid interference Poor power supply may cause messy code Make sure that the power supply is reliable The extension line and feeder quality are poor or too long so the bit error rate is high 7 P...

Page 12: ...lectronic Technology Co Ltd 1 11 7 2 Reflow soldering curve 8 E28 Series Model No IC Frequency Hz Tx power dBm Test distance km Package Size Antenna E28 2G4M20S SX1280 2 4G 20 6 SMD 15 26 5 IPEX PCB E...

Page 13: ...as for wireless modules with excellent performance and reasonable price 9 2 Antenna selection of E28 2G4M12S PCB default IPEX Model No Type Frequency Hz Interface Gain dBi Height Cable Function featur...

Page 14: ...21 Model No split Huaa 1 60 2020 06 10 Dimensional correction du 1 70 2023 06 14 Add merged models Liu About us Technical support support cdebyte com Documents and RF Setting download link https www...

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