DFRobot DFR1115 Gravity LoRaWAN Node Modules
DFRobot DFR1115 Gravity LoRaWAN Node Modules, available in both EU868 and US915 variants, are compact, easy‑to‑integrate wireless communication modules designed for long‑distance, low‑power Internet of Things (IoT) applications. Built on the Semtech SX1262 LoRa RF chip and supporting both LoRa point‑to‑point (P2P) and LoRaWAN networking, these DFRobot modules provide reliable, wide‑area data transmission without the need for wired infrastructures. With a wide 1.5km communication range in urban areas and 4.5km in open environments, the DFR1115 modules are an ideal solution for agriculture, environmental monitoring, industrial sensing, and outdoor IoT networks.
DFRobot DFR1115 modules support Class A and Class C LoRaWAN modes, compatible with platforms such as The Things Network (TTN) and ChirpStack, using either OTAA or ABP activation methods. Featuring integrated protocol stacks, onboard PCB antennas, and dual communication interfaces (UART and I2C), the modules require no low‑level development and are fully compatible with Arduino, ESP32, micro:bit, and other 3.3V/5V development boards for rapid deployment. The ultra‑low‑power LoRa technology significantly extends battery life in field sensor nodes, while the plug‑and‑play Gravity interface ensures straightforward integration into existing systems.
Features
- Dual-mode flexible configuration (LoRa/LoRaWAN)
- Simple to use, quick deployment
- Compatible with 3.3V and 5V logic levels
- Supports both UART and I2C communication methods
- Onboard PCB antenna, integrated module design
- Effective coverage, kilometer-range long-distance transmission
- 1.5km in urban areas
- 4.5km in open areas
- Supports LoRa one-to-one, one-to-many, many-to-one, and bridge communication
- Suitable for North America and other regions using the US915 frequency band (DFR1115-915)
- Suitable for Europe and other regions using the EU868 frequency band (DFR1115-868)
- Supports ABP and OTAA LoRaWAN activation modes
- Wide compatibility with microcontrollers (Micro:bit, Arduino UNO, ESP32, and other development boards)
- Simple to use, supports Arduino IDE, Mind+, and MakeCode graphical programming
- 1x PH2.0-4P connection cable included
Applications
- Crop growth monitoring
- Greenhouse temperature and humidity monitoring
- Ecological area environmental monitoring
- Beehive automatic monitoring
- LoRaWAN weather stations
- Garden planting projects
- Outdoor IoT education
Specifications
- 3.3VDC to 5VDC power supply voltage range
- I2C and UART communication modes
- PH2.0-4P power/communication interface
- ø3.0mm mounting hole diameter
- 35mm mounting hole spacing
- 42mm x 62mm product dimensions
- SX1262 RF chip
- 868MHz or 915MHz operating frequency variants
- LoRa modulation method
- 7~12 spread factor
- Maximum transmit power
- +16dBm for DFR1115-868
- +22dBm for DFR1115-915
- -137dBm receiver sensitivity (SF=12/BW=125kHz)
Infographic
Videos
Function Indication
Onboard Components
Semtech SX1261/SX1262 LoRa 송수신기
4.2mA에 불과한 활성 수신 전류 소비량을 제공하는 150MHz-960MHz LoRa RF 송수신기.