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Zero-drift op amp provides EMI filtering

Wed, Jan 16, 2019

Meeting the needs of precision measurement in industrial control and factory automation, the MCP6V51 zero-drift operational amplifier (op amp) provides precision measurement and minimises the influence of high-frequency interference, claims Microchip. The MCP6V51 offers a wide operating range and on-chip EMI filters.

The so-called smart factory has led to an increase in the number of sensors that need to be monitored and the MCP6V51 amplifier is designed to provide accurate, stable data from a variety of sensors. Its self-correcting zero-drift architecture enables high DC precision, claims Microchip, providing a maximum offset of ±15 microV and only ±36 nanoV per degree C of maximum offset drift. The MCP6V51 supports a wide operating voltage range – from 4.5 to 45V, suitable for factory automation, process control and building automation applications.

The increasing numbers of wireless sensors and wireless capabilities raises high frequency interference within sensitive analogue measurement as a critical consideration. The additional on-chip EMI filtering within the MCP6V51 provides protection from these unwanted and unpredictable interference sources. This allows designers to provide improved performance while more easily managing an increasingly difficult environment.

Programmable logic controllers and distributed control systems used within industrial automation run on a variety of voltage rails, such as 12, 24 or 36V. The support for a wide range of supply voltages includes overhead to account for supply transients by supporting an operating range up to 45V.

An evaluation board is also available. The eight-pin SOIC/MSOP/TSSOP/DIP evaluation board (Part # SOIC8EV) is a blank PCB that allows each device pin to be connected to a pull-up resistor, a pull-down resistor, an in-line resistor, and a loading capacitor. The PCB pads allow through-hole or surface-mount connectors to be installed to ease connection to the board. Additional passive component footprints are on the board, to allow simple circuits to be implemented.

The MCP6V51 is available today for sampling and volume production in both eight-lead MSOPs and five-lead SOT-23 packages.

http://www.microchip.com

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Adesto partners with Watson to predict energy analytics

Tue, Jan 15, 2019

Smart buildings can be enhanced with insights into energy management and other operational data through services running on the IBM Watson IoT platform, says Adesto at the launch of its SmartServer IoT edge server platform.

Through its recent acquisition of Echelon, Adesto has been selling its open embedded IoT platform into the building automation and energy management industry for over two decades. The SmartServer IoT edge server platform features built-in device and data management for sensors, meters, actuators and controllers in buildings, through traditional and emerging protocols including BACnet, LonWorks and Modbus.

The IBM Watson IoT platform is a managed, cloud-hosted service designed to make it simple to derive value from IoT devices. It enables organisations to capture and explore data for devices, equipment, and machines, and discover insights that can drive better decision-making. When combined with the seamless connectivity of data from Adesto’s SmartServer IoT, engineers can provide facility managers with deep insights into energy consumption and other operational aspects of a building.

“IBM Watson IoT Platform enables customers to maximize the value of their physical assets,” said Sanjay Tripathi, VP of strategy and business development, IBM IoT. “Adesto’s SmartServer IoT provides the critical connection from industrial data to our platform so that customers can perform powerful analytics on their data. We are delighted to work with Adesto to demonstrate our combined capabilities, and we look forward to making the solution available to customers in the buildings sector.”

Adesto will demonstrate this revolutionary capability for building integrators, facility managers and property owners in its booth C5234 at the AHR Expo in Atlanta, Georgia (14 to 16 January) and at Embedded World, Nuremberg, Germany (26 to 28 February, booth 4A:124).

http://www.adestotech.com

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Development kit connects Bluetooth/LPWAN devices

Tue, Jan 15, 2019

Support for concurrent communication over Bluetooth Low Energy and Sub-1GHz wireless allows users of the STEVAL-FKI001V1 dual-radio development kit to build and connect IoT devices like smart sensors, finders and trackers. These devices can be configured, updated, remotely monitored and tracked using various network topologies, protocols and services, confirms STMicroelectronics.

The development kit is for use by IoT developers in projects from smart homes and smart buildings to asset tracking, energy management, smart farming and industrial monitoring and control use.

The kit includes ST’s BlueNRG-1 Bluetooth system on chip and S2-LP sub-1GHz transceiver. The dual-radio architecture enables simultaneous operations on a variety of radio-frequency bands and protocols such as Bluetooth Low Energy or proprietary 2.4GHz, Sub-1GHz, and Sigfox.

According to ST, users can create smart objects that connect to each other locally through mesh or point-to-point connections and support flexible ways of connecting to the Cloud. For instance, a sensor ecosystem for a smart home could be created with local sensor networking leveraging either Bluetooth Low Energy or Sub-1GHz wireless link and the whole system is then connected to the Cloud through a local gateway or directly via a seamless Sigfox ubiquitous link, for surveillance or remote monitoring purposes.

The BlueNRG-1 Bluetooth 5.0 certified kit allows configuration or modification of device settings during installation or maintenance and permits monitoring of networked node sensors through an app running on any Android or iOS device.

The sub-1GHz S2-LP transceiver allows local networking as well as LPWAN installations including global Sigfox connectivity, which allows capabilities such as real-time notification of events. Sigfox-ready networking can be used to track and remotely localise devices or assets.

The kit can be expanded through its Arduino Uno V3 connectors with ST’s X-Nucleo offering, including expansion boards with MEMS sensors, motor control, GNSS receivers or industrial I/O and power drivers.

The STEVAL-FKI001V1 development kit is interoperable with the recently announced BlueNRG-Tile board. This combination can allow users to build end-to-end smart-sensor networks, including the sensor node, local gateways and Cloud connectivity.

Leveraging the BlueNRG-1 SoC’s versatile interfaces and low-power Arm Cortex-M0 core with 256kbyte of embedded program memory, users can connect their own choice of external sensors and process the data acquired locally in real time. The STEVAL-FKI001V1 has a software development kit (SDK) that simplifies development to reduce time to market, yet preserves the flexible, scalable nature of the design. It could also be used in conjunction with the ST BlueNRG-Mesh software package to create extensive networking on a large-scale installation, advises ST. Over the air (OTA) firmware updates are possible via the Bluetooth Low Energy connection.

Based on a ready-to-use WS2118 RF dual-radio module from Jorjin, the STEVAL-FKI001V1 provides a pre-certified solution for developers to quickly move from early concept-feasibility phase to prototyping, field trials and volume production. The programmable low-power radio module has flexible power management and wake-on-event capability that allows multi-year lifetime from a small primary battery, says ST.

http://www.st.com

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Integrity launches first MA for V2X ecosystems

Mon, Jan 14, 2019

Believed to be the first misbehaviour authority service (MAS) for the US V2X (vehicle to everything) ecosystem, Integrity Security Services (ISS) has announced that its MAS will begin by serving subscribers already subscribing to its all certificate management service (CMS).

All new and existing ISS CMS subscribers will be able to begin identifying vehicles for misbehaviour and removing them from their networks. Device manufacturers and all subscribers can contact Integrity for certification and to enable the device with the ISS-approved MAS OBU client and begin testing.

The ability to identify vehicles that are not sending correct V2X messages and to remove them from the connected vehicle ecosystem is an important security requirement to maintain trust in the ecosystem. ISS claims that its MAS provides this capability on a scalable and efficient national level. ISS will be publishing its misbehaviour detection criteria, reporting format and MAS APIs for OBU and RSU vendors to use with their compliant systems.

Integrity Security Services was established to provide best practice embedded security products and infrastructure solutions for protecting smart devices from cyber security attacks. End-to-end automotive solutions range from ECU cryptographic platforms to large-scale public key management systems.

https://www.ghsiss.com

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Zero-drift op amp provides EMI filtering

Adesto partners with Watson to predict energy analytics

Development kit connects Bluetooth/LPWAN devices

Integrity launches first MA for V2X ecosystems

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