SKU: IOWC-0094
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Elecrow nRFLRCC68 Wireless Transceiver Module w/ nRF52840 & LLCC68

₹819.00 (Inclusive of all taxes)
Out of Stock

The Elecrow nRFLRCC68 is a dual-chip wireless transceiver module integrating the Nordic Semiconductor nRF52840 MCU and Semtech LLCC68 LoRa radio, supporting LoRaWAN Class A/B/C, Bluetooth 5.3, Zigbee, and NFC for versatile, long-range IoT deployments.

Features

  • Dual-Core Wireless Architecture: Combines Nordic Semiconductor nRF52840 Cortex-M4F MCU with Semtech LLCC68 LoRa transceiver for multi-protocol flexibility.
  • Extended Sub-GHz Range: Operates on 850-930 MHz ISM bands with +20 dBm Tx power and -125.5 dBm sensitivity for links up to 10 km.
  • Ultra-Low Power Operation: Achieves a deep sleep current of just 5µA, ideal for battery-powered remote sensor nodes and trackers.
  • Multi-Protocol Radio Stack: Supports Bluetooth 5.3, Bluetooth Mesh, Zigbee, Thread, NFC, and LoRaWAN for diverse network topologies.
  • Developer-Ready Interfaces: Features built-in AT command firmware over UART, plus SDK access for custom nRF Connect/Zephyr RTOS development.

Out of stock

Description

The Elecrow nRFLRCC68 module delivers a consolidated wireless solution by pairing the processing capabilities of the Nordic Semiconductor nRF52840 SoC with the long-range LoRa performance of the Semtech LLCC68. This integration provides a robust platform for developers building complex IoT endpoints that require both local mesh connectivity (via BLE/Zigbee) and wide-area backhaul (via LoRaWAN). The nRF52840 handles application logic, secure Bluetooth pairing, and network stack management, while the LLCC68 transceiver handles efficient, long-distance sub-GHz communication with a high link budget.

Engineered for low-power field deployment, the module operates from a 1.8V to 3.7V supply and maintains full functionality across an industrial temperature range of -40°C to +85°C. Its compact 20×20 mm form factor incorporates a crystal oscillator, RF matching network, and a chip antenna (or provision for an external antenna), making it suitable for space-constrained designs. The included AT command set allows for rapid prototyping and configuration of LoRa spreading factors, bandwidth, and Bluetooth advertising parameters without deep firmware development.

Key Features

  • Integrated Nordic Semiconductor nRF52840 & Semtech LLCC68 provides a complete MCU+RF system-on-module.
  • Global Sub-1GHz ISM Band Support covers 850-930 MHz for worldwide LoRaWAN deployment.
  • High-Performance LoRa Link with +20 dBm transmit power and -125.5 dBm receiver sensitivity.
  • Multi-Protocol Connectivity includes Bluetooth 5.3, Bluetooth Mesh, Zigbee, Thread, and NFC.
  • Ultra-Low Power Design features a deep sleep current of 5µA for multi-year battery life.
  • Comprehensive Development Support via UART AT commands and full nRF Connect SDK.
  • Rich Peripheral Set exposes GPIO, ADC, I2C, and SPI interfaces for sensor integration.
  • Industrial Reliability with FCC, CE, and RoHS certifications for commercial use.

Applications

  • Long-Range Environmental Sensor Networks for agriculture and weather monitoring.
  • Hybrid Smart Building Automation combining BLE beacons with LoRaWAN gateways.
  • Asset Tracking & Fleet Management with both GPS/BLE proximity and LoRa backhaul.
  • Industrial IoT (IIoT) Telemetry for remote equipment monitoring and predictive maintenance.
  • Smart City Deployments such as parking sensors, waste management, and utility metering.

Technical Specifications

Microcontroller/SoCNordic Semiconductor nRF52840 (Cortex-M4F @ 64 MHz)
LoRa TransceiverSemtech LLCC68
Wireless ProtocolsLoRa, LoRaWAN Class A/B/C, Bluetooth 5.3, BLE, Zigbee, Thread, NFC
Frequency Range850 - 930 MHz (Global ISM Bands)
RF Transmit PowerUp to +20 dBm
Receiver Sensitivity-125.5 dBm (SF7, 125 kHz BW)
Supply Voltage1.8V - 3.7V DC
Operating Current~10 mA (RX), ~120 mA (TX at +20 dBm)
Sleep Current5 µA (Deep Sleep)
InterfacesUART, SPI, I2C, GPIO, ADC
Antenna ConnectorIntegrated Chip Antenna / Pad for External
Operating Temperature-40°C to +85°C
Dimensions20 mm x 20 mm x 3.5 mm

Frequently Asked Questions

How do I configure the nRFLRCC68 module for LoRaWAN communication?

Use the built-in AT command set via a UART interface (default 115200 baud). Commands like AT+PFREQ set the frequency, AT+PSF adjusts the spreading factor, and AT+PTX configures transmit power. For LoRaWAN, you must first activate the device on a network server (like TTN or ChirpStack) using the provided DevEUI, AppEUI, and AppKey, then send data with AT+SEND commands. The module supports LoRaWAN Class A, B, and C operation modes.

What development frameworks are supported for custom firmware on the nRF52840 inside this module?

You can develop custom applications using Nordic Semiconductor's nRF Connect SDK based on the Zephyr RTOS, which provides full drivers for the LLCC68 via SPI and all BLE/Zigbee stacks. Alternatively, the Arduino Core for nRF52 is supported through PlatformIO. Flash new firmware using an SWD debugger (like Segger) connected to the module's test points. The module's internal bootloader also supports DFU over UART or Bluetooth for wireless updates.

What is the power supply requirement and how do I minimize current consumption for battery operation?

Supply a stable voltage between 1.8V and 3.7V to the VCC pin. To achieve the rated 5µA sleep current, ensure you issue the AT+SLEEP command via UART to put the nRF52840 into System OFF mode. During active LoRa transmission at +20 dBm, expect peaks near 120mA; receive current is around 10mA. Use large capacitors near the power pins to handle transmit surges. For longest battery life, design your application to wake briefly, transmit data, and return to deep sleep quickly.

Package Includes

  • 1 x Elecrow nRFLRCC68 Wireless Transceiver Module

Additional Information

Weight 0.01 kg
Dimensions 2 × 2 × 0.35 cm