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Unconditional Satisfaction GuaranteeNo Shipping Fees Above 302 Months to Decide. Returns Simplified.Atom DTU LoRaWAN-EU868 is a programmable LoRaWAN data transmission unit for the EU868 frequency band. Built around the STM32WLE5 solution, it combines long-range wireless communication, low power consumption, high sensitivity, UART AT command control, and RS485 wired connectivity in an Atomic-series base form factor.
The built-in LoRaWAN protocol stack supports Class A, Class B, and Class C operation modes, with OTAA and ABP activation for connecting to LoRaWAN server platforms such as TTN, ChirpStack, Actility, and Tencent Cloud. Atom DTU LoRaWAN-EU868 also supports LoRa P2P communication, allowing direct device-to-device data exchange without a gateway when a private point-to-point link is required.
For field deployment, the base includes a high-sensitivity stick antenna, an HT3.96-4P wiring terminal, LEGO-compatible mounting holes, and a 35mm DIN-rail mounting slot. Atom DTU LoRaWAN-EU868 is suitable for smart agriculture, industrial monitoring, environmental monitoring nodes, and long-range low-power IoT data collection in regions that use the EU868 band.
| LoRa solution | STM32WLE5, 256KB flash, 64KB RAM |
| Supported band | EU868, 868 to 870MHz |
| Protocol support | LoRaWAN 1.0.3, Class A, Class B, Class C |
| Receive sensitivity | -137dBm |
| Activation modes | OTAA and ABP |
| Communication modes | LoRaWAN and LoRa P2P |
| Serial interface | UART serial, default baud rate 115200, AT command support |
| RS485 | SP3485EN |
| Antenna | High-performance stick antenna, 50 ohm impedance, 0.5dBi, 195mm total length |
| Standby power consumption | RS485 interface power: DC 9V at 167.98uA; DC 12V at 178.09uA |
| Operating current | 500kbps: DC 9V at 50.32mA reception, 51.56mA transmission; 125kbps: DC 9V at 49.94mA reception, 102.79mA transmission |
| Operating temperature | 0 to 40 C |
| Product size | 65.3 x 28.7 x 24.0mm |
| Product weight | 20.0g |
| Package size | 175.0 x 40.0 x 30.0mm |
| Gross weight | 56.9g |
The device supports LoRaWAN network operation through OTAA or ABP and can also run LoRa P2P communication for direct links. The Arduino tutorial demonstrates LoRa P2P communication and LoRaWAN network connection using an Atom controller with the DTU base.
For wiring, the documented pin map includes UART RX/TX, RS485 RX/TX, 5V, GND, and 3V3 connections. The HY2.0-4P Port.A mapping lists GND, 5V, G25 for Atom Lite, and G21 for Atom Lite.
EU868 deployment should follow the local regional frequency plan. The documentation lists many supported countries and regions, including Germany, France, Italy, Spain, Netherlands, Poland, Portugal, Sweden, Switzerland, the United Kingdom, and other EU868-compatible regions.
Atom DTU LoRaWAN-EU868 product document
Atom DTU LoRaWAN Series Arduino tutorial
M5-LoRaWAN-RAK Arduino library
Atom DTU LoRaWAN Series UiFlow2 documentation
Atom DTU LoRaWAN AT command manual PDF
Atom DTU LoRaWAN-EU868 schematic PDF
RAK3172 module datasheet PDF
RAK3172 module certification information
TTN LoRaWAN introduction and device configuration documentation
This version is intended for EU868 deployments, with the product specification listing 868 to 870MHz band support.
Yes. It supports LoRaWAN operation and LoRa P2P communication, so it can connect through a gateway or communicate directly with another compatible node.
The device supports OTAA and ABP activation modes for LoRaWAN network joining.
Yes. The base integrates RS485 communication in addition to UART serial AT command control.
