Unit LoRaWAN-US915
SKU: U184-US915
Description
Unit LoRaWAN-US915 is a LoRaWAN communication module based on LoRa technology, specifically designed for the US915 frequency band, suitable for the United States and other regions using the US915 frequency band. The module adopts the STM32WLE5 solution, supporting long-distance communication with low power consumption and high sensitivity. The module comes with a built-in LoRaWAN protocol stack, supporting Class A, Class B, and Class C operation modes. It also supports point-to-point (P2P) communication mode and uses a UART communication interface (controlled via AT commands) for flexible configuration. Additionally, the product features a high-performance rubber duck antenna, optimized for stable signal coverage and extended communication range, making it suitable for various complex environments. This module can be used as a collection node to connect to a gateway for data collection and management, or for direct communication between devices in scenarios where a gateway is not required. It is widely used in IoT communication scenarios such as smart agriculture, industrial monitoring, and environmental monitoring node deployment, where long-distance and low-power communication is essential.
Features
- Compliant with LoRaWAN® 1.0.3 protocol
- Supports 915MHz frequency band
- Supports LoRa® P2P (point-to-point) communication
- LoRaWAN activation modes: OTAA, ABP
- Serial communication (AT commands)
- High-sensitivity rubber duck antenna
- Low power consumption
- Compatible with LEGO holes
- Development platforms:
- UiFlow1
- UiFlow2
- Arduino IDE
Includes
- 1 x Unit LoRaWAN-US915
- 1 x HY2.0-4P Grove cable (20cm)
- 1 x Rubber duck antenna (@2.3dBi, total length 195mm, SMA male connector)
Applications
- Smart agriculture
- Industrial monitoring
- Environmental monitoring node deployment
Specifications
| Specification | Parameter |
|---|---|
| LoRa Solution | STM32WLE5 @256 KB Flash, 64 KB RAM |
| Supported Frequency | US915 (902-928 MHz) |
| Protocol Support | LoRaWAN® 1.0.3 protocol (Class A, Class B, Class C) |
| Receiver Sensitivity | -137 dBm |
| LoRaWAN Activation | OTAA, ABP |
| Communication Mode | LoRaWAN and point-to-point (P2P) |
| Communication Range (P2P) | 2300m (125Kbps), 1300m (500Kbps) |
| Interface Type | UART serial port @ default baud rate 115200, supports AT commands |
| Antenna Type | High-performance rubber duck antenna, 50-ohm impedance @2.3dBi, total length 195mm, SMA male connector |
| Standby Power Consumption | Idle state: DC 5V/7.23mA Sleep state: DC 5V/28.61uA |
| Operating Current | (500Kbps) Data reception: DC 5V/9.20mA Data transmission: DC 5V/11.36mA (125Kbps) Data reception: DC 5V/8.43mA Data transmission: DC 5V/117.16mA |
| Operating Temperature | 0 ~ 40°C |
| Product Size | 71.4 x 24.0 x 8.0mm |
| Product Weight | 11.7g |
| Package Size | 243.0 x 93.0 x 9.0mm |
| Gross Weight | 37.0g |
Learn
LoRaWAN Operation Mode Comparison
| Mode | Downlink Real-time Performance | Power Consumption | Application Scenarios |
|---|---|---|---|
| Class A | Lowest | Lowest | Periodic data upload, low-power sensors |
| Class B | Medium | Medium | Timed control devices |
| Class C | Highest | Highest | Real-time control devices, industrial automation |
Certifications
- CE/UKCA certification
- FCC/IC/RCM certification
Schematics
PinMap
Unit LoRaWAN-US915
| HY2.0-4P | Black | Red | Yellow | White |
|---|---|---|---|---|
| PORT.C | GND | 5V | UART_TX | UART_RX |
Model Size
Datasheets
Softwares
Arduino
UiFlow1
Coming soon...
UiFlow2
Coming soon...
Protocol
Video
- Unit LoRaWAN-US915 Product Introduction and Case Demonstration
Product Comparison
| Product Comparison Table |
Unit LoRaWAN-US915
|
Unit LoRaWAN 915MHz
 |
|---|---|---|
| Chip Module | STM32WLE5 | ASR6501 |
| Receiver Sensitivity | Minimum -137 dBm | Minimum -137 dBm |
| Interface Type | UART @ default baud rate: 115200 | UART @ default baud rate: 115200 |
| LoRaWAN Protocol Version | LoRaWAN 1.0.3, supports Class A/B/C | LoRaWAN 1.0.1, supports Class A/C |
| Transmit Power | Maximum 22 dBm | Maximum 21 dBm |
| Protocol Stack Support | Built-in LoRaWAN protocol stack | Built-in LoRaWAN protocol stack |
| Communication Mode | LoRaWAN and point-to-point (P2P) | LoRaWAN |