M5Stack Atomic DTU LoRaWAN Base EU868 STM32WLE5CC

The M5Stack Atomic DTU LoRaWAN Base EU868 is a compact and powerful data transmission unit for wireless communication over the LoRaWAN network. It uses the integrated STM32WLE5 chip with LoRa support to enable particularly energy-efficient and long-range capable data transmission. With support for LoRaWAN Class A, B, and C, this module is ideal for use in professional IoT applications. Communication is via UART using AT commands, or alternatively via RS485 – ideal for industrial applications. Thanks to P2P functionality, the module can also communicate directly with other LoRa devices without requiring a gateway. The included rod antenna offers high range and stable signal quality. Installation is simple with DIN rail mounting, allowing quick integration into existing control cabinets. Additionally, LEGO-compatible mounting options are available. The module is compatible with development platforms such as Arduino IDE, UIFlow1, and UIFlow2. This makes the Atomic DTU suitable for both industrial applications and smart agriculture projects.

Features:

• The integrated STM32WLE5 platform supports LoRaWAN Class A, B, and C with high energy efficiency.
• The module is designed for the EU868 frequency (868–870 MHz), making it ideal for European applications.
• RS485 and UART interfaces allow flexible integration into industrial systems.
• LoRa P2P mode allows for direct point-to-point connections without a gateway.
• The supplied antenna offers high reception sensitivity with low power consumption.
• The DIN rail mount allows easy installation in distribution cabinets.
• LEGO-compatible mounting points expand installation options.
• Support for Arduino, UIFlow1, and UIFlow2 facilitates the development of custom applications.

Application Examples:

• Use in smart agriculture sensors for wireless data transmission
• Monitoring of environmental parameters in remote locations via LoRaWAN
• Direct machine communication via LoRa P2P in factory automation
• Distributed data acquisition in energy or water supply networks
• Integration into industrial control systems with RS485 bus

Documentation:

• Quick Start Guide
• Official M5Stack Forum

Technical Data:

• Manufacturer: M5Stack
• Manufacturer SKU: A152-EU868
• LoRa Solution: STM32WLE5 @ 256 KB Flash, 64 KB RAM
• Frequency Band: EU868 (868–870 MHz)
• LoRaWAN Protocol: Class A, B, C / Version 1.0.3
• Sensitivity: –137 dBm
• LoRaWAN Modes: OTAA, ABP
• Communication: UART @ 115200 bps (AT commands), RS485
• Antenna: SMA Rod Antenna, 0.5 dBi, 195 mm
• Standby Consumption: 9 V @ 168 µA
• Operating Current:
  • Reception: 9 V @ 50.32 mA (500 kbps) / 49.94 mA (125 kbps)
  • Transmission: 9 V @ 51.56 mA (500 kbps) / 102.79 mA (125 kbps)
• Operating Temperature: 0–40 °C
• Dimension: 65.3 × 28.7 × 24.0 mm
• Weight: 59g

Package Contents:

• 1× M5Stack Atomic DTU LoRaWAN Base EU868 STM32WLE5CC
• 1× Rod Antenna (0.5 dBi, SMA, 195 mm)
• 1× HT3.96-4P Screw Terminal