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LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO
LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified  2.4GHz LoRa Module With TCXO

LoRa1281F27 : SX1281 500mW CE-RED & FCC ID Certified 2.4GHz LoRa Module With TCXO

  • The LoRa module LoRa1281F27 have obtained CE and FCC certification.
  • FCC ID can be checked here: (FCC ID: 2AD66-LORA128XF27)
  • https://www.fcc.gov/oet/ea/fccid
  • LoRa1281F27 strictly uses lead-free process for production and testing, and meets RoHS and Reach standards.
  • This series of modules are designed based on the original sx1281 RF chip from Semtech, and the matching of the PA circuit makes the output power of the module up to 500mW(+27dBm).
  • The high penetration performance of the 2.4GHz frequency band combined with the LoRa modulation enables the module to have high receiving sensitivity and environmental anti-interference ability. The whole series of modules are widely used in applications requiring long-distance 2.4GHz transmission.
  • LoRa1281F27 has obtained CE-RED and FCC ID certification.

★ The following parameters are obtained by connecting the instrument with a 50 ohm copper axis:@VCC=5 V.

Parameter Min. Typ.  Max. Unit Condition
Operation Condition
Working voltage 2 5 5.5 V  
Temperature range -40   85 °C  
Current Consumption
TX current   < 600   mA @Vcc=5V, 27dBm
RX current   < 17   mA @Ordinary crystal
Sleep current   <7   uA  
RF Parameter
Frequency range 2400   2500 MHz  

 

Data rate

0.476   202 Kbps @LoRa
260   1300 Kbps @FLRC
125   2000 Kbps @FSK
Output power 1   27 dBm  
Maximum Output power 26 26.5 27 dBm @VCC=5V
Receiving sensitivity   -132   dBm LoRa@0.476kbps
Interface SPI
Chip SX1281
Frequency 2.4GHz
Modulation LoRa
Output Power 500mW
Certification FCC ID, CE-RED

Features of 2.4GHz LoRa Module LoRa1281F27

  • Operating frequency range:2400-2500MHz
  • Maximum output power:500mW (27.0dBm)
  • Sensitivity up to--132dBm@LoRa
  • Data transfer rate:@LoRa=0.476-202kbps
  • LoRa modulation
  • Built-in LNA
  • High precision crystal oscillator (0.5ppm TCXO/10ppm)
  • Packet communication mode(receiving FiFo 256 bytes)
  • Operating voltage range:2.0-5.5V
  • Operating temperature range:-40~+85 °C

Applications of 2.4GHz LoRa Module LoRa1281F27

  • Wireless remote
  • Smart home
  • Tag reader
  • Toy control
  • Tire pressure monitoring
  • Health monitoring

Typical application circuit of 2.4GHz LoRa Module LoRa1281F27

Pins of 2.4GHz LoRa Module LoRa1281F27

Note: When the power supply is 5V, the high level of all IO is 3.3V.

Pin NO Pin name I/O Level standard Description
1 VCC - 2.0-5.5V Connected to the positive pole of the power supply
Note: In LoRa1280F27-TCXO module, PIN 2 is TCXOEN
2 GND -   Power ground
Note: In LoRa1280F27-TCXO module, PIN 2 is TCXOEN

2

TCXOEN

I

2.0-3.3V

Turn on TCXO: Pull up TCXOEN before controlling SX1280 to reset; Delay at least 3ms to wait for the TCXO startup to complete; 3. During the use of the 1280 module, TCXOEN must always maintain a high level; Turn off  TCXO (if the module needs to enter sleep mode): Call the SetSleep() function to make the module enter the sleep mode; Delay at least 1ms to wait for the completion of module sleep; Pull down TCXOEN to turn off TCXO;
3 NRESET I 0-3.3V Chip reset trigger pin, active low

4

BUSY

O

0-3.3V

Status indicator pin (see SX1280/1281 specification for details)

5

DIO1

O

0-3.3V

Directly connected to the chip pin, configurable general-purpose IO (see the chip SX1280/1281 specification for details)

6

DIO2

O

0-3.3V

Directly connected to the chip pin, configurable general-purpose IO (see the chip SX1280/1281 specification for details)

7

DIO3

O

0-3.3V

Directly connected to the chip pin, configurable general-purpose IO (see the chip SX1280/1281 specification for details)
8 NSS I 0-3.3V Module chip select pin
9 SCK I 0-3.3V SPI clock input pin
10 MOSI I 0-3.3V SPI data input pin
11 MISO O 0-3.3V SPI data output pin
12,15.16 GND - - Connected to the negative pole

13

TXEN

I

0-3.3V

Transmission control pin (high level when transmitting, low level when receiving)

14

RXEN

I

0-3.3V

Receive control pin (high level when receiving, low level when transmitting)
17 ANT - - Connect with 50 ohm coaxial antenna
18 GND - - Connected to the negative pole

Mechanical Dimensions of SX1280 LoRa Module LoRa1280F27

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