M5Stack U184-US915

LoRaWAN Unit US915 (STM32WLE5) with Antenna, FCC ID: 2AF6B-RAK3172

SKU: U184-US915

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 a range of complex environments. This module can serve as a collection node to connect to a gateway for data collection and management, or enable direct communication between devices in scenarios where a gateway is not required. It is 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

11.9g

Package Size

243.0 x 93.0 x 9.0mm

Gross Weight

37.0g

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FAST SHIPPING FROM USA.
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Please confirm the exact model number and electrical compatibility before purchasing.