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4. After burning successfully, Unplug the device and restart.

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ATOM DTU LoRaWAN915

SKU:K061

Description

ATOM DTU LoRaWAN915 is a LoRaWAN Programmable Data Transmission Unit (DTU) suitable for 915MHz frequency. The module adopts the ASR6501 scheme, which supports long-distance communication and has both ultra-low power consumption and high sensitivity. The module integrates the LoRaWAN protocol stack and adopts a serial communication interface (using AT command set for control). When used, it can be used as a collection node to access a large number of gateways for data collection and management. Integrate SMA external antenna interface to improve the communication quality and signal stability of the device. Unlike the DTU which generally only has the function of data transparent transmission, the ATOM DTU series adopts a more open architecture design. The controller ATOM LITE can modify the program at will according to the actual business. The whole machine reserves a variety of interfaces (RS485, I2C, custom interface) for user expansion, which is convenient for the rapid access of sensors and actuators. With its own guide rail clamping structure, it is perfectly embedded in various industrial control sites.

Note:
This module supports US915 band plan only. NOT supports AU915.

Product Features

  • ASR6501
  • Supported US915
  • 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

Includes

  • 1x ATOM DTU LoRaWAN915
  • 1x SMA antenna
  • 1x SMA red cap
  • 1x M2 hexagon wrench
  • 1x M2x16 screw
  • 1x 3.96-4P terminal

Application

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

US915 supported countries

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

Specifications

Resources Parameter
Communication chip ASR6501
Operating frequency 915MHz
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

Pin mapping

  • 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

Schematic

Example

UIFlow

Before using UIFlow programming, you need to burn the UIFlow firmware for the ATOM master, click here to view the quick start tutorial .

Feature Introduction

Init LoRaWAN 915 DTU Initialize the module

Config ABP mode device address app session key network session ket Configure ABP mode to access the network

Get ABP config Get network access information in ABP mode

Config OTAA mode device eui app eui app key Configure OTAA mode to access the network

Get OTAA config Get network access information in OTAA mode

Set frequency band mask channels Set the frequency band mask channel

Config RX window param RX1 offset RX2 datarate BW125 RX2 freq(Hz) Set the RX window parameters

Set class mode Set the class mode

Set uplink downlink mode Set up and down link mode

Check join status Check the status of joining the network

Set join mode Set the mode of access to the network

Join LoRaWAN network join auto join period (seconds) maximum number of attempts Set the information of device access to the network

Set uplink app port (1 ~ 233) Set the uplink application port (1 ~ 233)

Send data payload Send data payload to the server

Check uplink data status Check the status of uplink data

Check and receive downlink data Check and receive downlink data

RS485 write a line Write a line of data

RS485 write Data input

RS485 write raw data create list with Write raw data in list form

RS485 read all Read all data of RS485

RS485 read characters Read the number of characters of RS485

RS485 read line Read the data of a line of RS485

Remain cache Remian cache of RS485

Read coils slave address starting address coil qty Read the data of the coils

Read discrete inputs slave address starting address input qty Read the data of the discrete inputs

Read holding registers slave address starting address register qty signed Read the data of the holding registers

Read input registers slave address starting address register qty signed Read the data of the input registers

Write single coil slave address output address output value Write data to a single coil

Write single register slave address register address register value signed Write data to a single register

Write multiple coils slave address starting address output value Write data to multiple coils

Write multiple register slave address starting address register value signed Write datat to multiple register

Usage

Use OTAA to access the network and send messages continuously. Click here to download the case program M5F file

Arduino