Product description: Atom DTU LoRaWANEU868 - LoRaWAN communication module with antenna - STM32WLE5 - for M5Atom development modules - M5Stack A152-EU868
The Atom DTU LoRaWAN-EU868 module from M5Stack is a versatile data transmitter equipped with a built-in LoRaWAN protocol stack , supporting connections to servers such as TTN, ChirpStack, Actility , and others. It operates in the 868 MHz to 870 MHz frequency range with high receive sensitivity down to -137 dBm . It offers two activation methods: OTAA and ABP . Thanks to its industrial-grade RS485 connector and UART interface, it is suitable for integration with a wide range of systems. The module is designed for mounting on a 35 mm DIN rail , simplifying installation in switchboards and control cabinets.
Atom DTU LoRaWANEU868 - LoRaWAN communication module with antenna - STM32WLE5 - for M5Atom development modules - M5Stack A152-EU868.
The module can be mounted on a 35 mm DIN rail.
Main features of the Atom DTU LoRaWAN module - EU868
- Stable and long-range LoRaWAN communication : thanks to compliance with the LoRaWAN 1.0.3 protocol and high reception sensitivity (up to -137 dBm), the module ensures reliable data transmission even in difficult field conditions
- P2P support : enables direct communication between devices without the need for a gateway - ideal for quick deployment of local systems
- Integrated RS485 interface : enables easy integration with industrial measuring devices, counters, PLCs and sensors
- Easy configuration via AT commands : you can quickly adjust settings without having to write your own firmware
- Ready for industrial installation : housing with 35 mm DIN rail holder and screw connection make installation in control cabinets quick and easy
- M5Stack Atom Compatibility : Designed for easy integration with popular development modules, ideal for IoT prototyping and deployments
- Low power consumption : Low power modes enable battery operation and long-term operation in the field
Pins and interfaces - how to connect the module
The module offers two connection modes: Fixed Connect and Switch Connect . Depending on the selected controller (e.g., AtomS3, AtomS3R, Atom Matrix), the UART and RS485 pins will be assigned to different GPIO pins.
Example pin assignment:
- AtomS3R / AtomS3R-CAM / AtomS3R-M12 : UART TX: G5, UART RX: G6, RS485 TX: G7, RS485 RX: G8
- Atom Lite / Atom Matrix : UART TX: G22, UART RX: G19, RS485 TX: G23, RS485 RX: G33
RS485 power supply: VCC: 5 V, GND: GND
Equipped with a Grove interface and an SMA connector for the antenna.
The RS485 communication interface provides reliable connectivity for industrial field devices.Connection, compatibility and programming
The module can be programmed using the following platforms:
- Arduino IDE - full M5-LoRaWAN-RAK library
- UiFlow 1 / UiFlow 2 - (support in preparation)
UART communication using AT Commands makes configuration and integration with a host system intuitive. The module supports integration with TTN, ChirpStack, Actility, and other LoRaWAN platforms.
Technical specifications of Atom DTU LoRaWAN - EU868
- Microcontroller: STM32WLE5 (256 KB Flash, 64 KB RAM)
- Operating band: EU868 (868 MHz to 870 MHz)
- Protocols: LoRaWAN 1.0.3 (Class A/B/C), LoRa P2P
- Reception sensitivity: -137 dBm
- Activation methods: OTAA, ABP
- RS485: SP3485EN
- Interface: UART (baud rate 115200), AT Command
- Antenna: SMA male, 0.5 dBi, 195 mm long
- Power supply (standby): 9V @ 167.98μA / 12V @ 178.09μA
- Power supply (operation): 9 V RX (500 kb/s): 50.32 mA, TX (125 kb/s): 102.79 mA
- Operating temperature: 0°C to 40°C
- Dimensions: 65.3 x 28.7 x 24 mm
- Weight: 20 g
Contents of the set
- 1x Atom DTU LoRaWAN-EU868
- 1x SMA antenna 0.5 dBi (195 mm)
- 1x 4-pin screw connector with 3.96 mm pitch
Elements included in the set.
Useful links
|
