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LoRa Long Range Radio Lorawan

im881a

buy lora module

iM881A-M - Long Range Radio Module

The iM881A-M is a compact and low-cost radio module that operates in the unlicensed 868 MHz band and combines a powerful Cortex-M0 controller with the new LoRa® transceiver SX1272 of Semtech Corporation. It has been specifically designed for battery driven devices. It consumes 40 mA in transmit with the maximum output power of +14dBm. Combined with an excellent sensitivity of down to -138 dBm a range of 12 km can be achieved in free space environment. The iM881A-M is pre-certified according the European R & TTE guideline and can be soldered like an SMD component. iM881A-M passed the Orange device interoperability test. This test validates the performance of the iM881A-M in the Orange public LoRaWAN® network environment.


The iM881A-M can be ordered with a pre-programmed embedded protocol stack in two options:

iM881A-M LR Base:

This WiMOD LR (Long Range) Base firmware is a collection of functionalities and applications like Radio Link Test, Sensor App., Data Link Service, etc. embedded in our powerful WiMOD OS operating system. It does not include any LoRaWAN® functionalities. The WiMOD LR HCI interface provides to the user direct access to many radio parameters. Please refer to the download section.

 

iM881A-M LoRaWAN:

The LoRaWAN® protocol stack, specified by the LoRa Alliance, is based on IBM’s LMiC and IMST’s WiMOD-OS. It enables Low Power Wide Area Networks (LPWANs) for Internet-of-Things (IoT) and Machine-to Machine (M2M) applications and supports Direct or Over The Air (OTA) activation. It comes with the WiMOD LoRaWAN® HCI interface and allows easy configuration. Please refer to the download section.


  • Automated Meter Reading
  • Home and Building Automation
  • Wireless Alarm and Security Systems
  • Industrial Monitoring and Control
  • Long Range Irrigation Systems
  • IoT (Internet of Things)
  • Smart Cities


Frequency range: SRD Band 863 to 870 MHz
Modulation: LoRa® Spread-Spectrum
RF output power: up to +14 dBm (50Ω pad)
Receiver sensitivity: -138 dBm (SF 12;  SB 125 kHz, CR 4/6)
-134 dBm (SF 12;  SB 250 kHz, CR 4/6)
-128 dBm (SF 12;  SB 500 kHz, CR 4/6)
RF datarate: 0.24 to 37.5  kbps
50kbps FSK-modulation
RF range: up to 12000 m (line of sight)
Operating voltage: 1.8 V to 3.6 V
Current consumption:

1.4 μA (module in sleep, RTC running)
11.2 mA (Rx)
38 mA (Tx @ 3.0 V/ +14 dBm); 29 mA (Tx @ 3.0 V/ +13 dBm)

Interfaces: UART
SPI*
I²C*
RF (LoRa®)
IO's: Digital IOs
Analog Inputs
Dimension (LxWxH): 20 x 25 x 3.3 mm
Operating temperature: -40°C to +85°C
Certification:

Pre-Certified according to ETSI EN 300 220
iM881A-M passed the Orange device interoperability test

 

* This functionality is not part of the standard firmware.

WiMOD LoRaWAN EndNode Studio

WiMOD LR_Studio (LoRa)

The WiMOD LoRaWAN® EndNode Studio is a Windows application which allows to explore the capabilities of the WiMOD LoRaWAN® EndNode firmware. The GUI offers a comfortable way to configure and control the features of the embedded radio stack. The WiMOD LR Studio is a Windows application which allows to explore the capabilities of the IMST LoRa® module, an ultra-low-power, high-performance, pre-certified Long Range radio module. The Windows GUI offers a comfortable way to configure and control the features of the embedded WiMOD Radio Stack.

Introduction

Introduction

Module Configuration

Module Configuration

Join the Network

Radio Link Test

LoRaWAN HCI (Host Controller Interface)

Data Link Service

Sending LoRaWAN messages from Loriot to myDevices using a LGW and SK-iM880B

Firmware Update

Sending LoRaWAN messages from Loriot to myDevices using a LGW and a Mote II

 

General Information:
iM88x_AN011_RangeTest_V1_1.pdf This Application Note includes results of various range tests made with the SK-iM880B.
iM880B_AN016_RFSettings_V1_1.pdf With the introduction of RED (Radio Equipment Directive) this document become obsolete. This Application Note provides an overview about the possible RF settings of iM881A-M for the 868 MHz frequency band.
iM881A_Datasheet_V1_0.pdf Data Sheet for iM881A-M.
LoRaWAN_GitHubCode_QuickStartGuide.pdf This document contains an introduction to the LoRaWAN stack available in GitHub for the WiMOD LR radio module family (e.g. iM880B, iM881A and iM980A).
WiMOD_AltiumModulesLibs_V1_9.zip Modules Lib for Altium Designer.
 

LoRaWan:

WiMOD_LoRaWAN_EndNode_Modem_Feature_Spec_V2_4.pdf This document outlines the current version of WiMOD LoRaWAN® EndNode Modem firmware features.
This firmware supports the following WiMOD LoRaWAN® radio modules iM881A, iM880B, iM980A and iU880B.
WiMOD_LoRaWAN_EndNode_Modem_HCI_Spec_V1_22.pdf This document outlines the current version of the WiMOD LoRaWAN® HCI specification.
The WiMOD LoRaWAN® HCI protocol is designed to expose the radio module services to an external host controller. The communication between host and the radio is based on so called HCI messages which can be sent through a UART interface.
WiMOD_LoRaWAN_EndNode_Package_2018_03_02.zip

This file contains the current WiMOD LoRaWAN® firmware (hex-file) for  iM881A, iM880B, iM980A and iU880B . This version of the firmware has passed the LoRaWAN® certification process. It contains all necessary documentation and release information.

WiMOD_LoRaWAN_EndNode_Studio_2018_03_02.zip

This is a GUI for easy configuration of LoRaWAN® compliant radio nodes. It supports Direct Activation and Over The Air (OTA) Activation, and provides the possibility to transmit unconfirmed and confirmed data.
It contains the current firmware for iM881A, iM880B, iM980A, iU880B and all necessary documentation and release information

WiMOD_LoRaWAN_DevTool_V2_2_0.zip This tool is intended to be used for the first steps of implementing the LoRaWAN® HCI interface between the radio module and the host MCU. It is a simple tool for checking if the basic communication primitives are working. You can select LoRaWAN_HCI primitives with CRC and Slip encoding or in raw format.
WiMOD_LoRaWAN_ExampleCode_EFM32_V1_3_1.zip This C example code project shows how to implement the WiMOD LoRaWAN® HCI protocol on the host side. The project is created for IAR Embedded Workbench and uses an EFM32 microcontroller as host.
WiMOD_LoRaWAN_ExampleCode_HCI_C_V0_1.zip This C example code project shows how to implement the WiMOD LoRaWAN® HCI protocol on the host side.

LR_Base:
WiMOD_LR_Base_Feature_Spec_V1_1.pdf This document outlines the WiMOD LR Base firmware features. This firmware supports the following radio  WiMOD LR radio module iM881A, iM880B, iM980A and iU880B.
WiMOD_LR_Base_HCI_Spec_V1_10.pdf Host Controller Interface specification. The WiMOD LR Base HCI protocol is designed to expose the radio module services to an external host controller. The communication between host and the radio (WiMOD) is based on so called HCI messages which can be sent through a UART interface. The WiMOD LR Base firmware provides several services for configuration, control and radio link access.
WiMOD_LR_Base_Firmware_V1_14.zip This file contains the current WiMOD LR firmware (hex-file) for iM881A, iM880B, iM980A and iU880B.
WiMOD_LR_Studio_V1_23_0.zip The WiMOD LR Studio is part of the WiMOD Starter Kit. It is a plug & play solution to explore the features and capabilities of the Long Range module iM881A, iM880B, iM980A and iU880B.
WiMOD_LR_ExampleCode_V1_1.zip This file contains two projects: A “C++” implementation of LR_Base_HCI interface and a “C” implementation of LR_Base_HCI interface for EFM32TG840F32 platform.

WiMOD_LR_DevTool_V2_2_0.zip This tool is intended to be used for the first steps of implementing the HCI interface between the radio module and the host MCU. It is a basic tool for checking if the basic communication primitives are working. It generates the packets in raw format of the HCI interface.