Reference: DWM15101101

E931.96 Ultra-Low Power PIR Controller

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The E931.96 is an ultra-low power motion detector controller integrated circuit. The device is ideally suited for battery operated wireless motion sensors that make use of an MCU for handling com munication.

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E28-2G4M27S 2.4GHz SPI +27dBm Enhanced Power LoRa Transceiver Module

DWM20030703
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The E28-2G4M27S 2.4GHz SPI +27dBm Enhanced Power LoRa Transceiver Module is based on original imported RFIC SX1280 from SEMTECH, adopts LoRa and FLRC And GFSK Modulation.

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Description

The E28-2G4M27S is a 2.4GHz module.The IC SX1280 features multiple physical layers and various modulating methods such as LoRa, FLRC and GFSK. The special modulating and processing methods enable longer operating range with LoRa and FLRC modulating, and the GFSK method covers BLE protocol.

Features:

RF Parameter Value
Remark
Working frequency
2400~2500 MHz

ISM band

Transmitting power 27 dBm

About 500mW

Receiving sensitivity -132 dBm

Air data rate: 595kbps

Air data rate

LoRa(bps):0.595k~253.9k

FLRC(bps):260k~1.3M

GFSK(bps):125k~2M

Defined by user via programming

Test distance 8000m

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

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

Hardware Parameter Value
Remark
Size
26.5 * 15 mm

-

Antenna type IPEX / PCB

50Ω Impedance 

Communication interface SPI

0~10Mbps

Package SMD

-

Electronic parameter Min. Typ. Max. Unit Condition
Power supply
2.5 3.3 3.6 V ≥3.3 V ensures output power
Communication level - 3.3 - V For 5V TTL, it may be at risk of burning down
Transmitting current

-

580 - mA Instant power consumption
Receiving current -
14.5 - mA -
Sleep current - 2.0 - μA Software is shut down
Operating temperature -40 20
+85 -
Operating humidity 10 60
90 % -
Storage temperature -40 20
+125 -

Pin Definition

E28-2G4M20S Pin difinition

Pin No.
Pin Item Pin Direction Pin Application
1 VCC -

Power supply, 1.8V ~3.6V (recommend to add external ceramic filter capacitor)

2 GND -

Ground, connecting to power source 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

7 GND -

Ground, connecting to power source 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 source 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 general IO interface (refer to SX1280 Datasheet)

14 DIO2 Input/Output

Configurable general IO interface (refer to SX1280 Datasheet)

15 DIO3 Input/Output

Configurable general IO interface (refer to SX1280 Datasheet)

16 GND -

Ground, connecting to power source reference ground

UseFul Link:

n No

Product Details
DWM20030703
300 Items
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E28-2G4M27S 2.4GHz SPI +27dBm Enhanced Power LoRa Transceiver Module

E28-2G4M27S 2.4GHz SPI +27dBm Enhanced Power LoRa Transceiver Module

The E28-2G4M27S 2.4GHz SPI +27dBm Enhanced Power LoRa Transceiver Module is based on original imported RFIC SX1280 from SEMTECH, adopts LoRa and FLRC And GFSK Modulation.

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