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Description
Elecrow LoRa Node Expansion Board-nRFLR1110 Integrates nRF52840This is a LoRa IoT node module built around the nRFLR1110 module, which combines a Nordic nRF52840 processor with a Semtech LR1110 baseband chip. It supports both LoRa point to point transparent transmission and the standard LoRaWAN network protocol, making it a complete communication solution for long distance, low power IoT deployments. Firmware is available for 868 MHz and 915 MHz regions. The board is designed for outdoor deployment and rapid
This is a LoRa IoT node module built around the nRFLR1110 module, which combines a Nordic nRF52840 processor with a Semtech LR1110 baseband chip. It supports both LoRa point-to-point transparent transmission and the standard LoRaWAN network protocol, making it a complete communication solution for long-distance, low-power IoT deployments. Firmware is available for 868 MHz and 915 MHz regions.
The board is designed for outdoor deployment and rapid prototyping. It includes a lithium battery charge/discharge management circuit and a dedicated solar panel interface for green energy operation in the field. Six standard sensor interfaces (2 digital, 2 analog, 1 I2C, 1 UART) allow direct plug-and-play connection to Crowtail sensor modules. A built-in GNSS module supports GPS and BeiDou dual satellite positioning. Onboard user-defined buttons and pin headers give developers flexibility for secondary development.
Key Features
-
Dual-Mode LoRa Communication
- Based on nRFLR1110 (nRF52840 + Semtech LR1110)
- Supports LoRa point-to-point transparent transmission and LoRaWAN network access
- Operates at 868 MHz and 915 MHz; firmware provided for both regions
- TX power up to +20 dBm; receive sensitivity −144 dBm at SF12/125 kHz
- Range: 5–6 km typical, up to 15 km (antenna and environment dependent)
-
Green Energy Support
- Built-in lithium battery charge/discharge management circuit
- Dedicated solar panel interface for self-sufficient outdoor nodes
- Suitable for long-term unattended field deployment
-
Rich Sensor Interfaces
- 2 × digital (D0, D1), 2 × analog (A0, A1), 1 × I2C, 1 × UART
- Plug-and-play with Crowtail sensor modules (temperature, humidity, air quality, and more)
-
Built-in GNSS Positioning
- Supports GPS and BeiDou dual satellite systems
- Wi-Fi sniffer and Bluetooth 5.3 / BLE / mesh also available for positioning and connectivity
-
Developer-Friendly Design
- Onboard user-defined function button and reset button
- Pin headers included for flexible soldering and secondary development
- Three LED indicators: power (red), charging (green), user-defined (blue)
Applications
- Smart Cities
- Smart Agriculture
- Industrial Automation
- Environmental Monitoring
- Smart Homes
- Logistics Management
- Healthcare
Technical Specifications
| Category | Specification |
|---|---|
| Main Chip | |
| CPU / SoC | Nordic nRF52840, single-core 32-bit, 64 MHz |
| Baseband Chip | Semtech LR1110IMLTRT (via nRFLR1110 module) |
| System Memory | 256 KB RAM |
| Storage | 1 MB Flash (onboard), 8 MB Flash (external) |
| LoRa Communication | |
| Module | nRFLR1110 |
| TX Power | +20 dBm (max) |
| Receive Sensitivity | −144 dBm @ SF12/125 kHz |
| Link Budget | 166 dB |
| Data Rate | 0.076–62.5 kbps |
| Modulation | LoRa / (G)FSK / LR-FHSS / Sigfox |
| Spreading Factor | SF5–SF12 |
| Frequency | 850–930 MHz (868 MHz and 915 MHz firmware) |
| Range | 5–6 km typical; up to 15 km max |
| Other Wireless | |
| Wi-Fi | Wi-Fi Sniffer |
| Bluetooth | Bluetooth 5.3, BLE, mesh network |
| GNSS | Built-in GPS / BeiDou dual satellite |
| Interfaces & Buttons | |
| Interfaces | 1 × USB Type-C 1 × Wi-Fi / GNSS / LoRa antenna connector 1 × D0, 1 × D1 (digital) 1 × A0, 1 × A1 (analog) 1 × Battery interface 1 × Solar interface 1 × I2C 1 × UART |
| Buttons | 1 × Reset, 1 × User-defined |
| LED Indicators | Red: power | Green: charging | Blue: user-defined |
| Power & Environment | |
| Supply Voltage | 5.0 V (typical) |
| I/O Voltage | 3.3 V (typical) |
| Clock | 32 MHz TCXO |
| Operating Temperature | −30°C to +85°C |
| Storage Temperature | −30°C to +85°C |
| Mechanical | |
| Dimensions | 75 × 55 × 7.5 mm |
Technical Documents
LoRa is a registered trademark of Semtech Corporation. LoRaWAN is a trademark of the LoRa Alliance. MCCI and MCCI Catena are registered trademarks of MCCI Corporation. All other trademarks are the property of their respective owners.
Shipping Notes
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Exchange/Return Notes
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