DFRobot
Gravity LoRaWAN Node Module EU868 - SX1262
· MPN: DFR1115-868
This Gravity node module is a long-range, low-power wireless communication module for outdoor IoT sensor projects. It is based on the Semtech SX1262 RF chip,...
This Gravity node module is a long-range, low-power wireless communication module for outdoor IoT sensor projects. It is based on the Semtech SX1262 RF chip, uses LoRa modulation, and operates on the EU868 frequency band for Europe and other regions that use this band.
The module can work in LoRa point-to-point mode or LoRaWAN networking mode, making it suitable for private links as well as networks such as The Things Network (TTN) and ChirpStack. It integrates the LoRa/LoRaWAN protocol stack, so you do not need to build low-level protocol handling from scratch.
Hardware integration is via a PH2.0-4P connector with power and communication, using standard I²C or UART. It is compatible with micro:bit, Arduino, ESP32 and other 3.3V/5V development boards, and supports Arduino IDE, Mind+, and MakeCode programming environments.
The package includes the Gravity: LoRaWAN Node Module (868MHz) and a PH2.0-4P connection cable.
Features:
- Dual communication modes: supports flexible switching between LoRa P2P and LoRaWAN protocols.
- LoRa mode: enables direct one-to-one, one-to-many, many-to-one, and bridge communications.
- LoRaWAN mode: supports both Class A and Class C operation.
- Network integration: can be integrated into networks like The Things Network (TTN) and ChirpStack via ABP or OTAA activation methods.
- Long-range transmission: provides 1.2 km effective range in urban environments.
- Long-range transmission: provides 4 km effective range in open areas.
- Onboard antenna: equipped with an onboard PCB antenna and LoRa technology.
- Low power operation: LoRa modulation technology allows for ultra-low power operation for remote sensor nodes.
- Built-in protocol stack: integrates a complete LoRa/LoRaWAN protocol stack.
- Programming support: supports Arduino IDE, Mind+, and MakeCode graphical programming environments.
- Board compatibility: compatible with micro:bit, Arduino, ESP32, and other 3.3V/5V development boards.
- Interfaces: standard I2C and UART interfaces simplify hardware integration.
- Included module: Gravity: LoRaWAN Node Module (868MHz) ×1.
- Included cable: PH2.0-4P connection cable ×1.
Specifications:
- Supply Voltage: 3.3V – 5V DC
- Interface Type: PH2.0-4P (Power + Communication)
- Communication Interface: I²C / UART
- Logic Level Compatibility: 3.3V / 5V
- Mounting Hole Diameter: 3.0 mm
- Mounting Hole Spacing: 35 mm
- Dimensions: 42 mm × 62 mm
- Net Weight: 10 g
- RF Chip Semtech: SX1262
- Operating Frequency: 868 MHz (EU868 Band, compliant with European and regional regulations)
- Modulation Type: LoRa (Long Range)
- Bandwidth: 125 kHz
- Max Transmit Power: +16 dBm
- Receiver Sensitivity: –137 dBm (SF12 / BW125 kHz)
Well suited to agricultural monitoring, environmental data collection, smart gardening, and educational projects involving outdoor wireless networks and IoT prototyping.
Jargon buster
Plain-language definitions for the technical terms used above.
- ESP32
- ESP32 is a family of microcontroller modules with built-in wireless features such as Bluetooth and WiFi. Knowing this product uses an ESP32-based module helps explain how it provides wireless serial communication and firmware update features.
- Gravity
- Gravity is DFRobot’s plug-in connector system for sensors, motors and modules, using standard cables to reduce loose jumper wiring. It matters because Gravity-compatible parts can connect directly to these ports, while non-Gravity parts may need adapters or manual wiring.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- IDE
- Short for Integrated Development Environment, a program used to write, run and manage code. It matters because some learners prefer a traditional coding workspace instead of a guided notebook-style lesson.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- LoRa
- LoRa is a long-range, low-power radio technology often used for telemetry and remote sensors. It matters here because the connector and pinout are compatible with some LoRa telemetry products, even though this module uses Bluetooth instead.
- PCB antenna
- A PCB antenna is an antenna pattern built directly into the circuit board rather than a separate metal antenna. It matters because placement, nearby metal and enclosure design can affect wireless range.
- RF
- RF means radio frequency, referring to signals used for wireless communication and other high-frequency electronics. A low-noise, stable power supply is important for RF circuits because power noise can affect signal quality and measurements.
- UART
- UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
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