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E28-2G4T12S

[IC]:SX1280

[Frequency]:2.4~2.5GHz

[Power]:12.5dBm

[Distance]:3.0km

[Interface]:UART

[Weight]:2.2±0.1g

[Introduction]:E28-2G4T12S is an UART module based on SEMTECH SX1280, it adopts transparent transmission and works at 2.4GHz band. It adopts LoRa, FLRC and GFSK modulations. It features SMD packing with both IPX and PCB antenna interfaces, and its TTL output is 3.3V.

EN-E28-2G4T12S_01

EN-E28-2G4T12S_02

EN-E28-2G4T12S_03

EN-E28-2G4T12S_04

EN-E28-2G4T12S_05

EN-E28-2G4T12S_06


RF ParameterValue
Remark
Working frequency
2400~2500 MHz

ISM band

Transmitting power12.5 dBm

-

Receiving sensitivity-132 dBm

Air data rate: 1.0kbps

Modulation

LoRa

FLRC

GFSK

-

Test distance3000m

Test condition:clear and open area, antenna gain: 5dBi,

antenna height: 2.5m,air data rate: 1kbps


Hardware ParameterValue
Remark
Size
17.5 * 28.7 mm

-

Antenna typeIPEX / PCB

50Ω Impedance

Communication interfaceUART

TTL

PackageSMD

-


Electronic parameterMin.Typ.Max.UnitCondition
Power supply
2.35.05.5V≥5.0V ensures output power
Communication level-3.3-VFor 5V TTL, it may be at risk of burning down
Transmitting current

-

46-mAInstant power consumption
Receiving current-
20-mA
-
Sleep current-8-μASoftware is shut down
Operating temperature
-4020
+85-
Operating humidity
1060
90%-
Storage temperature
-4020
+125-


E28-2G4T12S_Size

Pin No.
Pin ItemPin DirectionPin Application
1GNDGround

Ground

2NC-

Disconnected

3M0Input

M2, M1 and M0 jointly decide the 8 operation modes.

(cannot be floated, can be grounded if not used)

4M1Input

M2, M1 and M0 jointly decide the 8 operation modes.

(cannot be floated, can be grounded if not used)

5M2Input

M2, M1 and M0 jointly decide the 8 operation modes.

(cannot be floated, can be grounded if not used)

6RXDInput

TTL serial input, connected to external TXD output pin. Can be configured as open-drain

or pull-up input, please refer to parameter configuration.

7TXDOutput

TTL serial output, connected to external RXD input pin Can be configured open-drain

or push-pull output, please refer to parameter configuration.

8AUXOutput

Used to indicate the module operation status, when user wakes up the external MCU,

it outputs low level during initialization after power on and self-check, can be

configured as open-drain output or push-pull output, please refer to parameter

configuration. (can be floated)

9VCC-

Module power source positive reference.

Voltage range: 2.3 ~ 5.5V DC

10~11GNDGround

Ground

12~19NC-

Disconnected

20GNDGround

Ground

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产品
型号
IC Interface Frequency
Hz
Power
dBm
Distance
km
Air
data
rate
Package Size
(mm)
Feature技术
手册
样品
购买
E28-2G4T27SX UART SX1281 2.4G 27 7 1k ~ 2M SMD 40.5*25 LoRa spread spectrum, high-speed continuous transmission
E28-2G4M27S SPI SX1280 2.4G 27 8 0.125M~2M SMD 15 * 26.5 LoRa spread spectrum,FLRC
E28-2G4T12S UART SX1280 2.4G 12.5 3 1k ~ 2M SMD 17.5* 28.7 LoRa spread spectrum
E28-2G4M20S SPI SX1280 2.4G 20 6 0.125M~2M SMD 15 * 26.5 LoRa spread spectrum,FLRC
E28-2G4M12S SPI SX1280 2.4G 12.5 3 0.125M~2M SMD 14*25 LoRa spread spectrum,FLRC
  • E28-2G4T27SX

    产品型号:E28-2G4T27SX

    IC :UART

    Interface :SX1281

    Frequency Hz :2.4G

    Power dBm :27

    Distance km :7

    Air data rate :1k ~ 2M

    Package :SMD

    Size (mm) :40.5*25

    Feature:LoRa spread spectrum, high-speed continuous transmission

    PDF :

    购买:

  • E28-2G4M27S

    产品型号:E28-2G4M27S

    IC :SPI

    Interface :SX1280

    Frequency Hz :2.4G

    Power dBm :27

    Distance km :8

    Air data rate :0.125M~2M

    Package :SMD

    Size (mm) :15 * 26.5

    Feature:LoRa spread spectrum,FLRC

    PDF :

    购买:

  • E28-2G4T12S

    产品型号:E28-2G4T12S

    IC :UART

    Interface :SX1280

    Frequency Hz :2.4G

    Power dBm :12.5

    Distance km :3

    Air data rate :1k ~ 2M

    Package :SMD

    Size (mm) :17.5* 28.7

    Feature:LoRa spread spectrum

    PDF :

    购买:

  • E28-2G4M20S

    产品型号:E28-2G4M20S

    IC :SPI

    Interface :SX1280

    Frequency Hz :2.4G

    Power dBm :20

    Distance km :6

    Air data rate :0.125M~2M

    Package :SMD

    Size (mm) :15 * 26.5

    Feature:LoRa spread spectrum,FLRC

    PDF :

    购买:

  • E28-2G4M12S

    产品型号:E28-2G4M12S

    IC :SPI

    Interface :SX1280

    Frequency Hz :2.4G

    Power dBm :12.5

    Distance km :3

    Air data rate :0.125M~2M

    Package :SMD

    Size (mm) :14*25

    Feature:LoRa spread spectrum,FLRC

    PDF :

    购买:

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