The nRFLR1121 module integrates the Nordic nRF52840 microcontroller and the Semtech LR1121 LoRa transceiver chip. It is a high-performance, low-power, long-range transceiver module. It supports Bluetooth 5.3 and low-power Bluetooth and complies with the A, B, and C classes of the LoRaWAN 1.0.4 specification. And it supports LoRa point-to-point (P2P) communication mode, covering the 850~930MHz (applicable to 868MHz, 915MHz) global ISM frequency band, with a maximum transmit power of +20dBm, a transmission rate range of 1.91~62.5Kbps, and a transmission distance of up to 10 km. In addition, the module supports ground ISM band communications, covering the global 2.4GHz spectrum and Sub-GHz band, and also supports S-band LR-FHSS (Long Range - Frequency Hopping Spread Spectrum) technology for satellite connection (the two cannot work at the same time). This makes it suitable for remote areas without ground network coverage, such as environmental monitoring of meteorological stations and hydrological stations, and transmits data to the central server via satellite communication.
The nRFLR1121 module has built-in AT command firmware, supports SDK customized development, and rich peripheral interfaces provide high flexibility to meet diverse development needs. Designed following industrial standards, the nRFLR1121 module is an ideal choice for high-reliability applications such as remote monitoring, ship communications, and rescue missions.
Feature
High performance: Maximum transmit power can reach +20dBm, support 1.91~62.5kbps transmission rate, -141dbm sensitivity @SF12/BW=125kHz, 166db link budget；
Ultra-low power consumption, sleep current is only 6uA;
Supports sub-GHz and global 2.4GHz spectrum, as well as S-band, and supports LoRa point-to-point (P2P) communication;
Wireless connection supports 850~930MHz global LoRa&LoRaWAN ISM frequency, supports low-power Bluetooth, Bluetooth mesh network, NFC, Thread, and Zigbee;
Built-in AT command firmware and support the use of SDK for customized product development, and the AT command set can be easily used through the UART interface;
Long-distance communication, the communication distance can reach 10km;
Rich peripherals, the module leads to a variety of GPIO interfaces such as UART, I2C, ADC, etc., providing great flexibility;
Compact form factor with only 20x 20x 3.5 mm
FCC, CE RoHS certification
Specification
| Processor |
RF chipnRF52840 processor, dual-core 32-bit, 64MHz main frequency |
| RF chip |
Semtech LR 1121Chip |
| LoRa Specification |
| Transmit Power TX |
+22 dBm@Max |
| Receiving Sensitivity |
-141dBm |
| Link Budget |
Support 166db link budget |
| Demodulator |
Support LoRa/(G)FSK/GMSK/Sigfox signal modulation;Support S-band satellite frequency hopping spread spectrum communication; |
| LoRa Frequency Range |
Supports configuration in the 150MHz to 960MHz and 2400 MHz bands; |
| Spreading Factor |
SF5~SF12 |
| Wireless connection |
Supports low-power Bluetooth, Bluetooth mesh network, NFC, Thread and Zigbee |
| Data Transfer Rate |
Supports data transmission rates from 1.91 to 62.5 Kbps |
| Other |
| Frequency |
Covering 850~930MHz (applicable to 868MHz, 915MHz) |
| Communication Interface |
SPI(0~10Mbps) |
| Lead Pin |
Such as SPI signal, VCC, multiple GND, NRST, ANT, TX control, RX control, BUSY status, NFC, SWD debugging pin, etc. |
| Antenna |
Not onboard, via RF pins |
| Reference Power Consumption |
6uA (sleep), 126mA (transmit + MCU), 18mA (receive + MCU) |
| Communication Distance |
5~6km, maximum over 10km |
| Crystal Type |
Industrial grade 32MHz TCXO |
| LoRaWAN Protocol |
Class A/B/C (compliant with LoRaWAN 1.0.4 specification) |
| Operating Voltage |
1.8~3.7V |
| Operating Temperature |
-40℃~+85℃, Industrial standard design |
| Package Size |
20*20*3.5mm, 80-Pin, SMT patch, LGA package; |
| Weight |
3g |
Application
Smart city, smart agriculture, industrial automation, environmental monitoring, smart home, logistics management, medical health;
Package List
1x nRFLR1121 Wireless Transceiver Module
Useful Link:
User Mannaul
Datasheet
AT command
