Atom DTU LoRaWAN Kit 868MHz (ASR6501)


Regular price $32.50

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ATOM DTU LoRaWAN868 Kit is a programmable data transmission unit (DTU) designed for LoRaWAN applications operating at the 868MHz frequency. It utilizes the ASR6501 scheme, which provides long-distance communication, ultra-low power consumption, and high sensitivity.

The module integrates the LoRaWAN protocol stack, making it compatible with LoRaWAN networks. It communicates with other devices using a serial communication interface and is controlled using an AT command set. This allows for easy configuration and control of the module's functionality. ATOM DTU LoRaWAN868 Unit can serve as a collection node, enabling data collection and management by connecting to a network of gateways. It is capable of accessing multiple gateways for improved coverage and connectivity.

To enhance communication quality and signal stability, the module integrates an SMA external antenna interface. This allows for the connection of an external antenna, improving the range and reliability of the device's wireless communication.

Unlike traditional DTUs that typically only support data transparent transmission, the ATOM DTU series adopts a more open architecture design. The ATOM LITE controller provides programmability, allowing users to modify the program according to their specific business requirements. The module also offers various interfaces such as RS485, I2C, and custom interfaces for easy expansion and integration with sensors and actuators.

ATOM DTU LoRaWAN868 features a guide rail clamping structure, making it suitable for embedding in various industrial control sites. Its compact design and cost-effectiveness make it an ideal solution for small data collection nodes in industrial applications.

Product Features

  • ASR6501
  • Operating frequency: 868MHz
  • Serial communication: UART 115200bps (AT command)
  • With super anti-interference ability, able to work normally in complex interference environment
  • RS485 communication interface (with 12V input interface, internal integrated DCDC step-down 5V)
  • Modbus Master/slave
  • Strong signal access capability
  • External antenna: SMA antenna interface
  • Grove expansion interface: -I2C x1 -Custom x1
  • Self-contained rail clamping


  • 1x ATOM LITE
  • 1x ATOM DTU LoRaWAN868
  • 1x SMA antenna
  • 1x SMA red cap
  • 1x M2 hexagon wrench
  • 1x M2x16 screw
  • 1x 3.96-4P terminal


  • Automatic remote meter reading
  • Intelligent traffic intelligent parking lot
  • Remote irrigation and environmental monitoring


Resources Parameter
Communication chip ASR6501
Operating frequency 868MHz
LoRaWAN Version v1.0.1
Minimum receiving sensitivity -137dBm (SF=12/BW=125KHz)
Maximum transmit power +21dBm
communication UART 115200bps
Net weight 32g
Gross weight 40g
Product Size 64 * 24 * 29mm
Package Size 91 * 42 * 24.5mm


  • This tutorial will show you how to create applications and node devices in TTN and implement data sending and receiving from the device to the cloud

    Customer Reviews

    Based on 3 reviews
    Roberto Peruzzo

    Atom DTU LoRaWAN Kit 868MHz (ASR6501)

    Wilm Dittmer
    Well designed, easy integration, a million and more possibilities

    Working as expected, integration really fast and a very good handling. Materials looks great and the mindset behind this complete set of components are very future orientated.

    Claus Kühnel
    Works as expacted from M5Stack

    Build an IoT node fast.

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