Wireless M-Bus Sensor Interfacing Modules (MSM)

The MSM is a series of RF modules with embedded application for reading and reporting sensors over a Wireless M-Bus network. There is no need to add an external microcontroller to read the sensors. As an option, custom sensor interfaces and drivers can be integrated in the module based on customer specification.  Radiocrafts can customize the firmware on request to virtually any sensor. Just contact Radiocrafts using our contact form for more details on customization.

An easy to use WSN system

Firmware is customizable to meet your every requirement

A complete solution from modules to gateways

Integrated Sensor Interfaces

Products and Applications

The MSM sensor interfacing RF Networks are designed to:

  • Support Wireless Sensor Network with a minimum of components in the Bill of Material.
  • To be very low power.
  • To be very easy to implement.
  • To have long range, several kilomteres for the 169MHz MSM modules.

The MSM products include:

  • RC1701HP-MSM, an ISM band 169 MHz module that meets the EN13757-4:2013 Mode N and provides very long range.
  • RC1880-MSM, an ISM band 868 MHz module that meets the Wireless M-Bus specifications S, T, and C modes and provides very low power.
  • The Radiocrafts sensor board, that includes a number of supported sensors and is a great tool for prototyping a wireless Sensor network.

Applications:

  • The primary application for the MSM modules is sub-metering solution providers. The MSM is a very simple way to expand the sub-metering gateway capabilities, by offering a simple solution that allows the system provider to add various sensors that can easily connect to the Wireless M-BUS gateway. Easily connects to any sensor, additionally, I2C / SPI interfaces are provided by Radiocrafts. The 169 MHz option is ideal for hard to reach sensors in challenging environments, for example, sensors in concrete, snow, ice, and underground.
  • Other applications include Wireless Sensor Networks, Industrial remote sensing, Smart sensors for buildings and smart cities, telemetry stations, and more.

A Complete Solution

Radiocrafts wants to provide our customers with an easy and simple to use RF network for sensors with high performance, but also, we want to provide you with a complete solution rather than just a part of a solution. Therefore, Radiocrafts has partnered with many different well established companies with gateway expertise where you can find a Wireless M-Bus gateway that is suitable to work with our MSM products. You can find the Wireless M-Bus gateway partners here.

Base Station: MSM Wireless Sensor Network (WSN)

  • The MSM modules are based on Wireless MBUS and can connect to any Wireless MBUS gateway that supports either 169MHz or 868MHZ. Radiocrafts also offers IoT expansion boards that can interface to the MSM modules and can be easily integrated into a FX-30 Gateway from Sierra Wireless or a MangOH Red board. Radiocrafts provides the source code to the demo software used to connect the sensors to the cloud.

Additionally, setting up a Wireless M-Bus network is a simple and easy task to accomplish. We have a detailed guide to help you set up your own Wireless M-Bus network which is in our application note, AN024: Wireless M-Bus in Industrial Sensor Networks. This application note gives you an understanding of how to use a Wireless M-Bus module in an industrial sensor network.

Configurable Signal Processing Features

Configurable signal processing features are also available. Messages can be sent regularly and/or when some condition is triggered, such as a sensor value going above a defined threshold. This enables a very compact, integrated and efficient solution for wireless sensor measurements that offers minimal time to market and a minimum amount of coding.

An event controller inside the Radiocrafts module determines when a sensor is read and when data is transmitted to the wireless network. The sensors are read by using either a time cycle, where the cycle time is decided by the user at configuration or by hitting a trigger condition that can be configured by the user. The transmission to the network is set in a similar fashion, either where data from the module is sent at a customer-defined time-interval or when a trigger condition is met. See the User Manual for more details.

Radiocrafts also provide sensor boards for testing and prototyping. Custom variants can be offered with custom functionalities. Details of interfaces and sensory setup is described in the RCxxxxx-MSM User Manual.

Tools and Sensor Interfaces Supported

The tools supported are:

  • The CCT tool for Sigfox resp Wireless MBUS includes the SSM and the MSM
  • The configurator tool to set the sensor interface parameters
  • The development kit that includes the sensor board

There are 4 types of sensor interfaces supported:

  1. An analog interface that reads the voltage level between 0 and 1.25V, in steps of 0.01V, from a sensor.
  2. Digital GPIO, that can be configured for input or output.
    • As output it can be set to toggle or drive a high or low signal.
    • As input it supports sensors with digital output, such as many magnetic sensors.
  3. The I2C interface supports a variety of predefined sensors. See the Data Sheet for details.
  4. The SPI interface supports predefined sensors. See the Data Sheet for details.

Product Documentation

Product/Tool

Download

Download

Description

RC1701HP-MSM

Datasheet

User Manual

Wireless MBUS Interface Module

RC1180-MSM

Datasheet

User Manual

Wireless MBUS Interface Module

RC1701HP-MSM-DK

Quick start

User Manual

Development Kit for Wireless MBUS Interface Module

RC1180-MSM-DK

Quick start

User Manual

Development Kit for Wireless MBUS Interface Module

Wireless MBUS CCT tool

Download software

User Manual

Communication and Configuration tool for Wireless MBUS

Sensor Configuration Tool

Download software

User Manual

Sensor Configuration Tool for the xSM modules

The Sensor Board

The sensor board supports the development of Sensor nodes using Radiocrafts Sensor Interface modules. It is included in the development kits for those modules.

The Sensor Board is populated with the sensors in that table below.

Sensor Supplier Description
SHT35 Sensirion Temperature and humidity sensor
HDC2010 Texas Instruments Temperature and humidity sensor
ALS-PT-315C Everlight Analog light sensor
SL353LT Honeywell Hall detector
LIS3DE ST Microelectronics Accelerometer
Blue LED Many LED, controlled by the GPIO