LoRa1121:sub-GHz and 2.4GHz dual-band communication module

LoRa1121:sub-GHz and 2.4GHz dual-band communication module

The LoRa1121 module utilizes SEMTECH's LR1121 chip, an ultra-low-power, long-range transceiver that supports both global ISM band and 2.4GHz communication. The LoRa1121 supports LoRa and (G)FSK modulation in the Sub-GHz and 2.4GHz bands, as well as Sigfox® modulation in the Sub-GHz band, and long-range frequency hopping spread spectrum (LR-FHSS) in the Sub-GHz, 1.9-2.1GHz, and 2.4GHz ISM bands. The LR1121 complies with the physical layer requirements of the LoRaWAN® specifications released by the LoRa Alliance®, while remaining highly configurable to meet the needs of various applications and proprietary protocols.

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Features of LoRa Module LoRa1121

Sub-GHz Bands ：433/470MHz/868/915MHz
Customizable frequency range ：150~960 MHz

2.4G band ：2400-2500MHz

S band ：1900MHz-2200MHz

Transmission distance ：>5000 meters at sub-GHz in open area
S band sensitivity : up to -132 dBm@ BW=125 KHz, SF=12
2.4GHz reception sensitivity ：up to-129dBm @ BW=406 KHz, SF=7
Sub-GHz reception sensitivity：up to -144dBm @ BW=62.5 KHz, SF=12
Transmitter power is adjustable, up to 22 dBm
Built-in electrostatic protection circuit
Supports LR-FHSS
Supports LoRaWAN protocol and Sigfox protocol
Supports AES-128 encryption and decryption
Sleep current < 1µA
Receive current < 7mA
Small size, stamp hole design

Applications of LoRa Module LoRa1121

Drones
Smart home
Smart agriculture
Remote irrigation
Industrial manufacturing

Pin NO.	Pin name	I/O	Description
1	VCC		Connect to the positive power supply.
2,8，11，12	GND		Connect to the negative power supply.
3	MISO	O	SPI data output
4	MOSI	I	SPI data input
5	SCK	I	SPI clock input
6	NSS	I	SPI chip select input
7	BUSY	O	Used for status indication, refer to the chip datasheet for details
9	2.4/S_ANT		2.4G and S band antenna interface,external 50-ohm antenna.
10	ANTA ANT		@sub-GHz band antenna interface, external 50-ohm antenna.
13	VTCXO	O	Can provide power for an external TCXO.
14	RST	I	Reset trigger input, refer to the chip datasheet for details.
15	DIO9	IO	Multipurpose digital interface, refer to the chip datasheet for details.
16	DIO8	IO	Multipurpose digital interface, refer to the chip datasheet for details.
17	DIO7	IO	Multipurpose digital interface, refer to the chip datasheet for details.

LoRa1121:sub-GHz and 2.4GHz dual-band communication module

Features of LoRa Module LoRa1121

Applications of LoRa Module LoRa1121

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