【High performance and ultra-low power consumption】Transmitting power up to 20dBm; supports 1.76~62.5Kbps transmission rate, -125.5dBm sensitivity; only 5uA in sleep mode;
【Wireless communication】Supports 850~930MHz global LoRa&LoRaWAN ISM frequency, supports LoRa point-to-point (P2P) communication. Supports low-power Bluetooth, Bluetooth mesh network, NFC, Thread and Zigbee;
【Easy to use】Built-in AT command firmware, can be easily used through the UART interface;
【Rich peripherals】UART, I2C, ADC and other GPIO interfaces are introduced, providing developers with great flexibility in peripheral expansion.
【FCC, CE, RoHS certification】
The Elecrow nRFLRCC68 module integrates the Nordic nRF52840 microcontroller and the Semtech LLCC68 LoRa transceiver chip. It is a high-performance, low-power medium- and long-range transceiver module. It supports Bluetooth 5.3 and low-power Bluetooth, complies with the A, B, and C classes of the LoRaWAN 1.0.4 specification, and supports LoRa point-to-point (P2P) communication mode. It covers the 850~930MHz (applicable to 868MHz, 915MHz) global ISM band, with a maximum transmit power of +20dBm, a transmission rate range of 1.76~62.5Kbps, and a transmission distance of up to 10 km.
The nRFLR1121 module has built-in AT command firmware, supports SDK customized development, and a rich peripheral interface that provides high flexibility to meet diverse development needs. The nRFLR1121 module retains the advantages of low power consumption, high transmit power and full LoRa frequency band, while optimizing the cost structure, removing the less used "ultra-low rate scenario", achieving significant price advantages, making it more suitable for smart home applications, medium-range indoor and indoor-to-outdoor wireless applications.
Self-developed by Elecrow with exclusive design. Customization can be discussed for bulk orders.
Application scenarios
Smart city, smart agriculture, industrial automation, environmental monitoring, smart home, logistics management, medical health;
Pin Definition
Processor |
nRF52840 processor, dual-core 32-bit, 64MHz main frequency |
RF chip |
Semtech LLCC68 Chip |
LoRa Specification |
|
Transmit Power TX |
+20 dBm@Max |
Receiving Sensitivity |
-125.5dBm |
Link Budget |
Support 151db link budget |
Demodulator |
Support LoRa/(G)FSK signal modulation |
LoRa Frequency Range |
Support 150MHz-960MHz configuration |
Spreading Factor |
SF5~SF11 |
Data Transfer Rate |
Supports data transmission rates from 1.76 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 |
5uA (sleep), 120mA (transmit + MCU), 12mA (receive + MCU) |
Communication Distance |
5~6km, maximum over 10km |
Crystal Type |
Industrial grade 32MHz TCXO |
LoRaWAN Protocol |
Class A/B/C (compliant with LoRaWAN 1.0.3 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 |
System Diagram
Transceiver Module Comparison
Dimension