Elecrow LoRa Node Expansion Board-nRFLR1110 Integrates nRF52840 for Long Range Communication Support GNSS Position

Elecrow LoRa Node Expansion Board-nRFLR1110 Integrates nRF52840 for Long Range Communication Support GNSS Position

This is a powerful LoRa IoT core module based on the nRFLR1110 main controller. It integrates complete LoRa RF transceiver functionality and supports point-to-point transparent transmission and the standard LoRaWAN network protocol, providing a reliable core communication solution for long-distance, low-power IoT connections. The module offers 868MHz and 915MHz firmware for different regions.

The module design fully considers ease of outdoor deployment and rapid development. It features a built-in lithium battery charge/discharge management circuit and a reserved solar panel interface, supporting green energy self-sufficiency and suitable for long-term field monitoring. Simultaneously, it integrates six interfaces: two digital, two analog, one I2C, and one UART, allowing for plug-and-play connection to various Crowdtail sensors such as temperature, humidity, and air quality sensors, quickly building data acquisition nodes. It has a built-in high-precision GNSS positioning module and supports both GPS and BeiDou dual satellite systems, enabling fast and accurate outdoor positioning. Furthermore, it features onboard customizable function buttons and pin headers, providing users with high development flexibility in projects such as weather monitoring, smart homes, and industrial sensing.

User Manual / Datasheet / Example Codes Etc.

Features

• Dual-mode LoRa communication: Based on the nRFLR1110, it simultaneously supports LoRa point-to-point transparent transmission and LoRaWAN network access, and operates at 868/915 MHz.
• Green energy: Built-in lithium battery charge/discharge management circuitry and a dedicated solar charging interface ensure long-term stable operation of outdoor nodes.
• Rich expansion interfaces: Provides 2 digital (Dx2), 2 analog (Ax2), 1 I2C, and 1 UART interfaces, allowing direct connection to a large number of Crowtail sensor modules for rapid application node construction.
• Geographic positioning function: Built-in GNSS (GPS/Beidou), Wi-Fi, and Bluetooth functions for precise positioning;
• Convenient development and design: Onboard, reserved user-defined function buttons and included pin headers facilitate flexible soldering and secondary development to meet project requirements.

Specifications

• CPU/SoC: nRF52840
• Baseband chip: Semtech LR1110IMLTRT (nRFLR1110 module)
• System memory: 256KB RAM
• Storage: 1MB Flash (onboard), 8MB Flash (external)
• LoRa Communication
• Processor: nRF52840 processor, single-core 32-bit, 64MHz clock speed
• TX Power: +20 dBm@Max
• Receive Sensitivity: -144dBm @SF12/125kHz
• Frequency: 850~930MHz (868MHz, 915MHz compatible)
• Range: 5~6km, up to 15km max(antenna & environment dependent)
• Other Communication
• Wi-Fi: Wi-Fi Sniffer
• Bluetooth: Bluetooth 5.3, BLE, mesh network
• GNSS: Built-in GNSS (GPS/BeiDou)

• Other

• Power supply voltage: Typical 5.0V
• I/O port power supply voltage: Typical 3.3 V
• Clock: 32MHz TCXO
• Operating temperature: -30°C to +85°C
• Storage temperature: -30°C to +85°C
• Size: 75*55*7.5(mm)
• Net Weight: 21g

Application

• Smart cities,
• smart agriculture,
• Industrial automation,
• Environmental monitoring,
• Smart homes,
• Logistics management,
• Healthcare

Package Includes

• 1xLoRa Node Board (nRFLR1110)
• 1x LoRa Antenna
• 1x GNSS Antenna
• 1x WiFi/2.4G Antenna
• 2x 7pin header