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Atom DTU LoRaWAN915

SKU: K061

Tutorial

This tutorial will guide you on how to create applications and node devices in TTN and achieve data transmission and reception between devices and the cloud.

Description

Atom DTU LoRaWAN915 is a programmable data transmission unit (DTU) suitable for the 915MHz frequency LoRaWAN. The module adopts the ASR6501 solution, supporting long-distance communication while featuring ultra-low power consumption and high sensitivity. The module integrates the LoRaWAN protocol stack and uses a serial communication interface (controlled by AT commands). It can be used as a collection node to connect to gateways in large numbers for data collection and management. The integrated SMA external antenna interface enhances the communication quality and signal stability of the device. Unlike general DTUs that only have data transmission functions, the Atom DTU LoRaWAN915 series adopts a more open architecture design. The Atom-Lite controller can modify the program according to actual business needs, and the device reserves multiple interfaces (RS485, I2C, custom interfaces) for user expansion, facilitating the quick connection of sensors and actuators. It comes with a rail clamping structure, perfectly embedding into various industrial control sites.

Features

  • ASR6501
  • Supports US915
  • Serial communication: UART 115200bps (AT commands)
  • Strong anti-interference capability, able to work normally in complex interference environments
  • RS485 communication interface (with 12V input interface, internally integrated DCDC step-down to 5V)
  • Modbus Master/slave
  • Strong signal access capability
  • External antenna: SMA antenna interface
  • Grove expansion interface:
    • I2C x1
    • Custom x1
  • Comes with rail clamping

Includes

  • 1 x Atom-Lite
  • 1 x Atomic DTU LoRaWAN915 Base
  • 1 x SMA antenna
  • 1 x SMA red cap
  • 1 x M2 hex wrench
  • 1 x M2x16 screw
  • 1 x VH3.96-4P terminal

Applications

  • Automatic remote meter reading
  • Smart transportation and smart parking
  • Remote irrigation and environmental monitoring

Specifications

Specification Parameter
Communication chip ASR6501
Operating frequency 915MHz
LoRaWAN version v1.0.1
Minimum receive sensitivity -137dBm (SF=12/BW=125KHz)
Maximum transmit power +21dBm
Communication method UART 115200bps
Product dimensions 64 x 24 x 29mm
Product weight 32g
Package dimensions 91 x 42 x 24.5mm
Gross weight 40g

Learn

Note

This product supports the US915 frequency band by default and does not support AU915.

Supported US915 Countries and Regions

Argentina/Canada/Chile/Colombia/Ecuador/Greece Guatemala/Jamaica/Mexico/Nicaragua/Panama/United States/Uruguay

Schematics

PinMap

  • LoRaWAN915
Atom G22(TX) G19(RX) 5V GND
LoRaWAN915 RX TX VIN GND
  • RS485
Atom G23 G33 5V GND
RS485 TX RX VIN GND
  • I2C
Atom G25 G21 5V GND
I2C SDA SCL VIN GND

Datasheets

Softwares

Arduino

UiFlow1

Protocol