AVR-IoT WG development board

Microchip released a new IoT Development board, the AVR-IoT WG with part number: AC164160

The AVR-IoT WG development board combines a powerful 8-bit ATmega4808 MCU, an ATECC608A CryptoAuthentication™ secure element IC and the fully certified ATWINC1510 Wi-Fi® network controller – which provides the most simple and effective way to connect your embedded application to Google’s Cloud IoT core platform. The board also includes an on-board debugger, and requires no external hardware to program and debug the MCU.

Out of the box, the MCU comes preloaded with a firmware image that enables you to quickly connect and send data to the Google Cloud IoT platform using the on-board temperature and light sensors. Once you are ready to build your own custom design, you can easily generate code using the free software libraries in Atmel START or MPLAB Code Configurator (MCC).

The AVR-IoT board is supported by two award-winning Integrated Development Environments (IDEs) – Atmel Studio and Microchip MPLAB® X IDE – giving you the freedom to innovate with your environment of choice.

Smart – Expand IoT functionality using the powerful ATmega4808 with 48 KB Flash and 6 KB RAM.
Secure – Entrust encryption to the latest in Microchip’s CryptoAuthentication portfolio, based on ATECC608A.
Connected – Propel your design into the Cloud with Microchip’s ATWINC1510, a single-band 2.4 GHz network controller.

ATmega4808 microcontroller

  • Four user LED’s
  • Two mechanical buttons
  • mikroBUS header footprint
  • TEMT6000 Light sensor
  • MCP9808 Temperature sensor
  • ATECC608A CryptoAuthentication™ device

WINC1510 WiFi Module

On-board nEDBG Debugger

  • Auto-ID for board identification in Atmel Studio and Microchip MPLAB X
  • One green board power and status LED
  • Programming and debugging
  • Virtual COM port (CDC)
  • Two DGI GPIO lines

USB and battery powered

Integrated Li-Ion/LiPo battery charger

TruffleBot Sniffs Out and Accurately Identifies Specific Chemical Odors

TruffleBot identifies smells by measuring small changes in air pressure and temperature. By Megan Scudellari

An electronic nose typically identifies odors by detecting the “fingerprint” of a chemical compound across an array of sensors monitored by pattern-recognition software. E-nose technology is already in use across many industries, including agricultural, environmental, food, manufacturing, and the military.

Electronic sniffers are also being tested for their ability to detect disease, by sensing blood glucose levels from one’s breath and sniffing out gut disease from samples of poop. Better an electronic nose than a real one, right?

At Brown University in Rhode Island, electrical engineer Jacob Rosenstein and colleagues are now taking electronic noses a hop, skip, and a boogie closer to the real thing with a device that actually sniffs odors, sucking up vapors in a premeditated pattern through four pathways, and moving those vapors across chemical and mechanical sensors.

…read more

Review: Siglent SDS1204X-E four-channel oscilloscope

Review: Siglent SDS1204X-E four-channel oscilloscope

Here is a nice mini review of  Siglent SDS1204X-E four-channel oscilloscope by Harry Baggen @ elektormagazine.com:

A few years ago I wrote a review about the Siglent SDS1102X and back then I was very enamoured by the quality and extensive capabilities of this affordable instrument. In the meantime there have appeared a few successors in this series of mid-range oscilloscopes by Siglent and here I’m looking at a somewhat more expensive, four-channel model that has been available since the beginning of 2018, the SDS1204X-E. When it comes to the design and feature set this is very much a continuation of its predecessors. The most conspicuous change compared to the 1100 series is the increased bandwidth of the input stages, these are now 200 MHz (was 100 MHz earlier).

Review: Siglent SDS1204X-E four-channel oscilloscope – [Link]

An i.MX 8M Development Kit for Amazon Alexa Voice Service

Smart electronics help us save time at home especially when one cannot wait to get the party started. To provide a solution to this situation, Amazon created speakers and stereo systems, which are equipped with the Alexa Voice Service. Alexa Voice service gives a new voice experience to electronics devices and adds a more personal user experience.

Devices that incorporate Alexa Voice Service can be called electronics with Alexa Multi-Room Music capabilities. These devices can play music, read books and many more. Some of them can even connect to the TV and control it.

i.MX 8M PicoPi

NXP Semiconductors is a Dutch global company dedicated to enabling secure connections and infrastructure for a smarter world. One of their major goals is advancing solutions that make lives easier, better and safer. Recently, NXP released a new development kit to the public, that costs $219. It is supposed to offer a solution to far-field quality voice detection for the Alexa Voice Service (AVS). The kit comes in a box, and its components are one i.MX 8M PicoPi board, an auxiliary 2-mic VOICEHAT board, an external Wi-Fi antenna, a pair of micro speakers, USB Type-C and Micro-USB cables and standoffs and pin extenders for assembly.

This board has many components that have never been included in a non-Amazon development kit. It is the first kit to come with an Amazon Wake Word Engine tuned to “Alexa” which activates the voice assistant into listening mode. One of the best features is that it is equipped with a far-field voice using only two microphones. The board has been furnished to provide Alexa Voice Services (AVS).

AVS is a collection of various Amazon services built around its voice-controlled assistant called Alexa. One can perform multiple activities using the AVS, some of the activities are: listening to audiobooks, streaming music, making orders online and even receiving reports about storms using the Hurricane center.

The new NXP i.MX 8M kit has various remarkable features, some of which are:

  • First Development Kit to support Alexa Multi-Room Music (MRM).
  • It has a Pico-Pi board with i.MX 8M quad-core A53 processor with a speed of 1.3GHz.
  • Software DSP solution for audio processing.
  • Supports 2-mic array.
  • Linux BSP and firmware.
  • Cost-effective hands-free voice interaction with technology to detect and cancel noise from all directions.
  • It comes with certain security features such as tamper detection and secure boot.
  • AVS Device SDK.
  • Memory: 1GB LPDDR4
  • Power Input: 5V DC
  • Storage: 8GB eMMC
  • Temperature: 0° C to 60° C
  • M4 architecture
  • First 2-mic development kit that achieves Far-Field performance.
  • First non-Amazon development kit that uses the Amazon Wake Word Engine (WWE) tuned to Alexa.

The Kit comes with the following:

  • PICO-PI-IMX8M including development baseboard + System-on-Module (SOM)
  • TechNexion Voice Hat 2-Mic Development Kit for Amazon AVS
  • Pair of speakers (included in the Voice Hat 2-Mic Kit)
  • External Wi-Fi antenna
  • Pin extenders
  • USB Type-C and Micro-USB cables
  • Standoffs for assembly

The development kit is available for purchase, it costs $219 and can be purchased here.

Security Module for Raspberry Pi

Security Module for Raspberry Pi. Easy to integrate. Hard to penetrate. Zymkey secures all your digital assets from cyber-physical threats.

Raspberry Pi is no longer just the purview of educational establishments and hobbyists; Pis of all flavors, and in particular Raspberry, have graduated to commercial applications with millions deployed in the field and many more in the pipeline. This growth should be no surprise given the generation of coders who are growing up on Pi and the accessibility enabled by a low price, expansive ecosystem and robust supply chain. Expect more Pis to show up in thin clients, digital signage, kiosks and more!

A higher standard of security is expected

Pi developers is that they are increasingly being held to a high standard of security by customer CISOs who care about penetration of their networks and by their company CEOs who care about protecting the intellectual property that sits on the removeable SD card. At a recent meeting with an executive of a public company who uses Raspberry Pi (yes they do) we were asked the question

So what specifically is worth securing on our Pi?

This was a serious question on her part, motivated by a proactive strategy of protecting her company’s digital assets and her customers’ infrastructure. The answers we discussed are the motivation for this post.

Features

  • Multifactor Device ID & Authentication
  • Data Encryption & Signing
  • Key Storage & Generation
  • Physical Tamper Detection
  • Secure Element Root of Trust

They have two models of the I2C security module: Zymkey 4i going for $43 and available now, and if you need support for blockchain technology, Zymkey 5i can be pre-ordered for $47 with 32 unique key slots, and support for secp256K1 curves. The 5i model is expected to ship on September 15 onwards. The USB stick version appears to be an earlier product, and I could not find it for sale right now.

more info: www.zymbit.com

Highly integrated gateway module speeds LoRa deployments

The release of the LBAA0ZZ1QM (US) & LBAA0ZZ1TY (EU) LoRa Pico Gateway 14-pin metal-shielded module has been announced by Murata. Supporting eight channels and available in two variants for use in either EU or US ISM bands, this ultra compact module measures just 55.0×21.0x3.4mm. 

Designed as a single substrate low cost module that can enable the fast provision of low data rate LoRa radio links, the module comprises a Semtech SX1308 transceiver concentrator capable of managing packets from many remotely dispersed end-points, two Semtech SX1257 highly integrated RF front end I/Q transceivers and an STMicroElectronics STM32F401 Arm Cortex M4 microcontroller. A Skyworks RF front-end multi-chip module provides antenna matching, receiver pre-amplifier and transmitter final stage function.

The microcontroller hosts packet forwarding, communication with the application host controller and the module’s power management functions. The packet forwarder handles the two-way communication of packets between an end-point and the network server while the host driver provisions a USB CDC virtual port to communication with the host gateway application processor.

Alternatively, if desired, the module’s UART port can be used for communication with the gateway’s host. The microcontroller firmware also takes care of the power management, in particular when using a USB port, by limiting downlink power consumption to within the 500mA maximum power budget.

The LoRa network provides a low cost long-range communication infrastructure to communication with thousands of end-points. Example deployments include utility meter reading, smart agriculture and industrial IoT applications. Ensuring reliable communication across metropolitan or rural areas is essential and gateways such as the Murata LBAA0ZZ1 play a part in maintaining network links.

This module is a significant step, ready to accelerate the growth of LoRaWAN use cases requiring widespread deployment of picocells, such as smart building applications,

said Actility CEO Oliver Hersent.

We are working with Murata to ensure out of the box compatibility with our market-leading ThingPark IoT network management platform, so our customers can benefit from the most cost-effective picocell gateways. This will be particularly valuable for integrators of ThingPark Enterprise targeting in-building and in-factory solutions.

Wienke Giezeman, founder and CEO of The Things Network, commented:

Murata understands the future of LoRaWAN very well by providing an easy way for any router, set top box and base station makers to offer LoRaWAN in their products in a very easy way. We are very happy to partner with them to bring the complete solution to the market.

Domenico Arpaia, CEO of OrbiWise, added:

With its new LBAA0ZZ1 series LoRa Pico Gateway module, Murata is greatly simplifying the development of new LoRaWAN gateways, which is a crucial contribution to our ecosystem as LoRaWAN becomes widespread in the most diverse applications.

We have long cooperated with the Murata Team: OrbiWAN, our Carrier-grade LoraWAN Network Server, which already supports all commercial LoRaWAN gateways, now also supports natively Murata’s new gateway module. We are confident that, with Murata’s competence and resources and our own help, their new gateway module will quickly become the solution of choice for many new gateways in the rapidly growing LoRa market.

more info: www.murata.com

Extended battery life in portable devices with new low Iq LDO

Extending battery life in portable devices up to four times longer than traditional ultra-low quiescent (Iq) LDOs, Microchip has announced a linear Low Dropout (LDO) regulator.

With an ultra-low Iq of 250nA versus the approximate 1uA operation of traditional devices, the MCP1811 LDO reduces quiescent current to save battery life, enabling end-users to recharge or replace batteries less often. The minimised power consumption enables portable electronic devices to run for months or even years on a single battery.
Well suited for IoT and battery-operated applications such as wearables, remotes and hearing aids, the 250nA ultra-low Iq reduces power consumption in applications by minimising standby or shutdown current.

Reducing standby power consumption is critical in remote, battery-powered sensor nodes, where battery replacement is difficult and operating life requirements are high.

Available in package options as small as 1x1mm, the MCP1811 consumes minimal board space to meet the needs of today’s compact portable electronic designs. Depending on the application and number of LDOs, designers can take advantage of the extra board space with a larger battery to further increase battery life.

An additional benefit offered by the MCP1811 is faster load line and transient response when compared to other ultra-low Iq LDOs. Faster response times can accelerate wake-up speed in devices such as monitors or sensors that require immediate attention.

Faster transient response can help designers to avoid undervoltage and overvoltage lockout measures used in sensitive applications where transient spikes can result it catastrophic results.

Features
  • Ultra-Low Quiescent Current: 250 nA (typical)
  • Ultra-Low Shutdown Supply Current: 10 nA typ (MCP1811A) and 5 nA typ (MCP1811B)
  • Input Voltage Range: 1.8V to 5.5V
  • Standard Output Voltages: 1.0V, 1.2V, 1.8V, 2.0V, 2.5V, 2.8V, 3.0V, 3.3V and 4.0V
  • Low Dropout Voltage: 400 mV (typical) w/ Small Variation Over Load Range
  • Stable with Ceramic Output Capacitor: 1.0 uF
  • Overcurrent Protection w/ Foldback
  • Output Discharge (MCP1811A)
  • Available in 3 and 5 lead SOT-23, 3 and 5 lead SC70, 4 lead 1x1mm UDFN

more info: www.microchip.com

Weller soldering station for less than 150€

New soldering station WE1010 proves that even a very decent station can be available at an affordable price. It´s primarily designed for schools, students, demanding hobbyists, developers etc.

Having a reliable Weller station without paying more than 150 Euro (excl. VAT) sounds quite good, doesn´t it?

It´s true that a decent soldering station from less famous brands can be bought for even less than 100 Euro, however, usually we´ll find some aspect which the given soldering station doesn’t meet – ergonomics, (non-intuitive) operation, reliability, ESD safety, portfolio of tips, serviceability, availability of spare parts,…

New WE line (efficiency line) meets all the above mentioned, including ESD safety, which is not that common in this price level.

As could be expected, Weller didn’t go for compromises and also the WE1010 station is designed to withstand demanding professional usage. However, in respect to overall concept, it´s preferentially intended for schools, students, demanding hobbyists, developers etc.

WE1010 has an LCD display and intuitive navigation by means of a menu button. By its consecutive pressing it´s possible to activate or adjust these functions:

  • standby time
  • offset (from -40 to +40°C)
  • choice of units °C/ °F
  • password lock/ unlock.

By a combination of buttons it´s also possible to set back the station into factory settings. New ergonomic WEP70 soldering tool has increased power to 70W and uses classic well-proven and cost-effective tips of the ET series (choice of 23 types). Also a tool cord is highly flexible with a heat-resistant silicone insulation. New PH70 stand (safety rest) is of a well-proven design with a high stability.

Modules offer both Wi-Fi and dual-mode Bluetooth at the same time

u-blox announces multiradio and gateway modules with concurrent Wi-Fi and dual-mode Bluetooth connectivity. The NINA‑W15 module series offers much design versatility, built‑in security, and proven software support.

Thalwil, Switzerland – October 24, 2018 u‑blox (SIX:UBXN), a global provider of leading positioning and wireless communication technologies, has announced the NINA‑W15 multi-radio and gateway module series, which can simultaneously support both Wi‑Fi 802.11 b/g/n connections and dual‑mode Bluetooth connectivity. This includes support for both Bluetooth low energy and Bluetooth BR/EDR. Concurrent support for these radio interfaces delivers much design versatility. The modules will be particularly useful in products such as gateways and hubs that need to connect local Bluetooth and/or Wi‑Fi peripherals to a wider‑area network.

The NINA‑W15 modules offer the ideal combination of radio interfaces, security features, proven connectivity software, and a small footprint necessary to enable cost‑effective industrial and medical applications

says Stefan Berggren, Senior Product Marketing Manager, Product Center Short Range Radio at u‑blox. “Several industries are focusing on digitalization and a common scenario is to connect a huge number of sensors and actuators to a back‑end system or to cloud service, for analysis and visualization or even controlling applications,” he adds.

Key applications for the modules include industrial automation, such as machine control, industrial terminal and remote controls, building automation, and smart building/home equipment such as HVAC and lighting control. Other potential use cases include retail point‑of‑sale terminals, telematics control units, and medical equipment such as defibrillators and urology monitors.

The NINA‑W15 modules will help IoT device developers to secure their designs by supporting features such as secure boot, Wi‑Fi enterprise security, end to end security, Bluetooth secure connections, and secure simple pairing. The modules are also supplied with pre‑flashed u‑blox connectivity software. This has been proven in the market for 15 years, and supports several connectivity use cases, such as multiple individually controlled connections, simultaneous GATT protocol and Serial Port Service, and simultaneous peripheral and central role. These features can be accessed by a host microcontroller by using simple AT commands to configure and control the modules, and to control communications with external Bluetooth and Wi‑Fi devices.

The modules are compact and available with an internal antenna (NINA‑W152, measuring 10 x 14 x 3.8 mm) or a pin through which to drive an external antenna (NINA‑W151, measuring 10 x 10.6 x 2.2 mm). They are part of the NINA family of pin‑compatible short range radio stand‑alone modules, enabling designers to evolve existing products that already use single‑radio NINA modules to support multiple radio interfaces, or to design new product lines that offer a variety of radio interface options.

Designers will be able to reduce their time to market by taking advantage of u‑blox’s know‑how specific to product quality, qualification, certification, as well as its experience of helping customers bring products to the industrial and medical markets.

NINA‑W15 initial production is planned for Q1‑2019.

Inexpensive chip-based device may transform spectrometry

A collection of mini-spectrometer chips are arrayed on a tray after being made through conventional chip-making processes. Image: Felice Frankel

Tiny device could replace expensive lab-scale equipment for many applications.

Spectrometers — devices that distinguish different wavelengths of light and are used to determine the chemical composition of everything from laboratory materials to distant stars — are large devices with six-figure price tags, and tend to be found in large university and industry labs or observatories.

A new advance by researchers at MIT could make it possible to produce tiny spectrometers that are just as accurate and powerful but could be mass produced using standard chip-making processes. This approach could open up new uses for spectrometry that previously would have been physically and financially impossible.

The invention is described today in the journal Nature Communications, in a paper by MIT associate professor of materials science and engineering Juejun Hu, doctoral student Derek Kita, research assistant Brando Miranda, and five others.

The researchers say this new approach to making spectrometers on a chip could provide major advantages in performance, size, weight, and power consumption, compared to current instruments.

Other groups have tried to make chip-based spectrometers, but there is a built-in challenge: A device’s ability to spread out light based on its wavelength, using any conventional optical system, is highly dependent on the device’s size. Hu say:

If you make it smaller, the performance degrades,

Another type of spectrometer uses a mathematical approach called a Fourier transform. But these devices are still limited by the same size constraint — long optical paths are essential to attaining high performance. Since high-performance devices require long, tunable optical path lengths, miniaturized spectrometers have traditionally been inferior compared to their benchtop counterparts.

Instead, “we used a different technique,” says Kita. Their system is based on optical switches, which can instantly flip a beam of light between the different optical pathways, which can be of different lengths. These all-electronic optical switches eliminate the need for movable mirrors, which are required in the current versions, and can easily be fabricated using standard chip-making technology.

By eliminating the moving parts, Kita says,

there’s a huge benefit in terms of robustness. You could drop it off the table without causing any damage.

By using path lengths in power-of-two increments, these lengths can be combined in different ways to replicate an exponential number of discrete lengths, thus leading to a potential spectral resolution that increases exponentially with the number of on-chip optical switches. It’s the same principle that allows a balance scale to accurately measure a broad range of weights by combining just a small number of standard weights.

As a proof of concept, the researchers contracted an industry-standard semiconductor manufacturing service to build a device with six sequential switches, producing 64 spectral channels, with built-in processing capability to control the device and process its output. By expanding to 10 switches, the resolution would jump to 1,024 channels. They designed the device as a plug-and-play unit that could be easily integrated with existing optical networks.

read more: news.mit.edu

by David L. Chandler | MIT News Office

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