Android APP Contact Us
login / register Upload
TRENDING:

Azure Sphere MT3620 Development Kit

Posted on by mixos

Microsoft Azure Sphere is a solution for creating highly-secured, connected, MCU-powered devices. Azure Sphere brings together the best of Microsoft’s expertise in cloud, software and silicon—resulting in a unique approach to security that starts in the silicon and extends to the cloud. Together, Azure Sphere certified MCUs, the Azure Sphere OS, and the Azure Sphere Security Service provide you with the confidence and the power to reimagine your business and create the future.

Azure Sphere provides three levels of security technology:

  1. Secured MCU – Secured from the silicon up. The new MT3620 crossover class of MCUs combines for the first time both real-time and application processors with built-in Microsoft security technology and connectivity.
  2. Secured OS – An OS built for security and agility to create a trustworthy platform for new IoT experiences. Our secured OS builds security innovations pioneered in Windows into an HLOS small enough for MCUs.
  3. Cloud Security – Protect devices with a cloud built for IoT security. The Azure Sphere Security Service renews device security, identifies emerging threats, and brokers trust between device, cloud, and other endpoints.

Azure Sphere MT3620 Development Kit is specially designed to support rapid prototyping and to enable developers to experience Azure Sphere technology. MT3620 is the first Azure Sphere certified MCU. Azure Sphere certified MCUs are a new class of secured, connected crossover microcontrollers. MT3620 features three user-accessible microcontroller cores: one ARM Cortex-A7 core and two general purpose ARM Cortex-M4F cores. The MT3620 is designed to support real-time requirements when interfacing with a variety of on-chip peripherals including GPIO, UART, I2C, SPI, I2S, PWM and ADC. It has a built-in security subsystem with its own dedicated CM4F core for secure boot and secure system operation, along with dual-band 802.11 b/g/n Wi-Fi.

source: www.seeedstudio.com

Allegro ACS724 & ACS725 – Differential current sensor

Posted on by mixos

Differential current sensor – ACS724/725 SOIC8 sensor, galvanically isolated with common-mode field rejection. [via]

The ACE-Q100 qualified differential Current Sensor ACS724 (5V)/ACS725 (3.3V) is a Current Sensor IC in SOIC8-package (automotive qualified) which is designed for application where small footprint, high sensing accuracy and independence of magnetic field noise is required. With its industry leading noise performance, a bandwidth of 120kHz and a primary conductor resistance of 1.2 mOhm it suits perfectly into Automotive applications due to its accurate sensing output and low power consumption.

The sensor is certified from -40 to 150°C operating temperature and can measure a current up to +/- 50 Amps. The differential sensed current provides common-mode field rejection. That improves accuracy in magnetically noisy environments significantly.

Isolation voltage of 2400VRMS allows conducting of up to 420Vpk or DC on primary side. ACS724/25 in different packages are in development and are available shortly. These different packages allow isolation voltages up to 4800V.

Applications

  • Braking, including brake by wire and parking
  • Low power steering applications
  • Fluid and fuel pump applications
  • DCDC and ACDC Converters requiring operation on high side
  • Seat warmers on the main battery
  • Protection of brush and brushless-DC motors for chassis and in cabin application
  • Protection of loudspeakers for automotive enter- and infotainment

Ultrasound Patch Can Measure Blood Pressure Deep Inside Body

Posted on by mixos
Image courtesy of Chonghe Wang/Nature Biomedical Engineering

via Wearable Technology

Scientists at the University of California San Diego created a new wearable ultrasound patch that non-invasively monitors blood pressure in arteries deep beneath the skin such as the jugular vein and carotid artery. The new patch could be helpful in detecting cardiovascular problems earlier on and with greater precision. In a proof-of-concept study, the patch performed as well as some invasive means to measure central blood pressure.

The new patch uses ultrasound waves to continuously monitor central blood pressure in major arteries as deep as more than an inch below the skin, reports UC San Diego News.

If turned in a product, it may continuously monitor blood pressure changes in patients with heart or lung disease in real-time, as well as patients who are critically ill or undergoing surgeries such as cardiopulmonary procedures in which invasive methods are currently used.

Ultrasound Patch Can Measure Blood Pressure Deep Inside Body – [Link]

IoT LED Dimmer

Posted on by mixos

Sasa Karanovic shared a how-to on making a IoT LED dimmer:

Making a IoT LED dimmer that you can control via your PC, phone, tablet or any other device connected to the network is super simple, and I’m going to show you how.
I’m sharing my three channel LED dimmer that you can use to dim single RGB LED strip or dim three separate LED channels. I want to be able to control lights above my desk and also mix warm white and cool white strip to give me more flexibility over lighting while I’m working, taking pictures or watching movies.

IoT LED Dimmer – [Link]

OpenMV H7 Machine Vision Camera board – Designed for Low Power Real Time Applications.

Posted on by Tope Oluyemi

A new open source micro python powered machine vision camera called the openMV H7, is the new tool for developers and hobbyists looking to create machine vision projects. The new machine vision camera has been specifically designed for low power real time applications. The board is built around a 32-bit ST Microelectronics STM32H743 VI ARM Cortex-M7 processor, with 1Mb of RAM and 2MB of flash, running at 400 MHZ. The old M7 camera board could not run the machines learning algorithms, but the new H7 board which is a successor to the older M7 camera board can run the algorithms with ease.

The new board comes with an Omivision OV7725 image sensor, which can take 640×480 8- bit gray scale image or 640×480 16-bit RGB565 images at 60 FPS when the resolution is above 320×240 and 120FPS when it is below. The image sensor is removable and comes with a 2.8 mm lens on a standard M12 lens mount. This allows for both lens and vision sensor itself to be swapped out and replaced.

OpenMV is providing two alternative image sensors, the Global Shutter Camera Module intended for “professional machine vision applications” and a FLIR Lepton Adapter Module for “thermal machine vision applications.” The global shutter camera module is based on the ON semiconductor MT9V034, a grayscale sensor capable of running at 80FPS in QVGA mode, 200 FPS in QQVGA mode, and up to 400 FPS in QQQVGA mode.

OpenMV is also working to support both the Panasonic AMG8833 Grid-Eye Thermal sensor and Melexis MLX90640 Thermal sensors with the same adapter module, which should give users access to thermal imaging support at a much lower price point, and without the restrictions of US exports control.

The new machine vision camera is available on kickstarter, with price ranging from $49 for a camera board, with the default pre-focused OV7725 camera module mounted, through to $99 for a board with a mounted OV7725 Module and an additional the MT9Vo34 camera Module included, all the way up to $329 for a board with a FLIR Lepton 3.5 camera Module included.

If all goes well, and the kickstarter campaign raises the required $50000 needed to make the jump from concept into production, the openMV H7 cam will start shipping by March 2019.

The OpenMV project is about creating low-cost, extensible, Python powered, machine vision modules and aims at becoming the – Arduino of Machine Vision.

The goal is to bring machine vision algorithms closer to makers and hobbyists. The difficult and time-consuming algorithm programming is done for you leaving more time for your creativity.

BioControle – A Raspberry Pi Based Green house Control Center

Posted on by Ayo Ayibiowu

Greenhouse farming is picking up due to higher production being yielded from controlled cultivation within smaller land portions compared to that from the conventional open land cultivation, and this is a result of better management and control of plant environments.

Greenhouses are enclosed spaces, making it possible for certain crops to grow and thrive regardless of the external weather conditions. However, setting up a greenhouse with the right amount of lighting, humidity control, temperature control, and irrigation is a rather expensive process. Add to the cost of monitoring and controlling these systems if you want to grow a plant with efficiency.

BioControle, a new Raspberry Pi add-on board from Upsilon Engineering, is explicitly designed to make management and control of greenhouse systems affordable and easy to configure.

In designing the system, the engineers at Upsilon Engineering paid close attention to what a user would need to operate an aquaponics and hydroponics system effectively. Fittingly, the BioControle has built-in inputs for two humidity sensors and two temperature sensors. Onboard are four power relay outputs that can be used to control lights and whatever else may be needed, and two powered servo motor outputs that are designed to dispense fish food in aquaponics systems or power air pumps. Thoughtfully, they included two additional logical inputs and two logical outputs to the device, giving the user the liberty to decide their use. It is also equipped with a real-time clock that helps keep track of time.

The BioControle connects to the  Raspberry Pi 3 through the standard 40-pin interface, and it offers some brilliant features to control your aquaponics or hydroponics systems. Impressively, the BioControle interfaces are protected against under voltage, over voltage and reverse polarity, so, you are probably safe from short-circuits and other situations.

The shield also offers complete protection between your application and your Raspberry P. This is possible with the help of protection diodes, serial protection resistance, buffers, and level shifters. The board provides +5.0V and +3.3V power supply supervisors connected on LED and Raspberry Pi input and can run on a standard 230VAC adapter.

Over the years, my yardstick for recognizing real impact with modern technology has been something like this:

True innovation is found when technology meets man’s needs

BioControle is one of such projects and is poised to continuously bring relief to humanity in the agricultural space by enhancing greenhouse farming. The board is currently being crowd-funded on Kickstarter, starting at €76 for a single board without the Raspberry Pi added. More information about the board is available from the campaign page.

Work Faster, Work Smarter, Work Safer with the BOXER-6405 Edge AI Smart Factory System

Posted on by mixos

AAEON, a leading developer of IoT solutions, releases the BOXER-6405, an ultra-compact edge AI system for smart factory applications. Fitted with four USB3.0 ports and three COM ports, this versatile device can easily be connected to a range of factory equipment.

Measuring just 166mm x 106.6mm x 37mm, the BOXER-6405 can be deployed in the tightest of spaces. Despite its modest dimensions, it can be connected to multiple industrial cameras, PLCs, sensors, and motion devices. The slim PC can also be fitted with AAEON’s AI Core – a mini-PCIe module powered by Intel® Movidius™ Myriad™ 2 technology.

The deep learning module enables the BOXER-6405 to serve as a powerful edge AI device, and the AI Core’s advanced VPU enhances the system’s already formidable machine vision capabilities. Because the AI Core operates on the edge without a connection to a network or the cloud, issues relating to latency, reliability, and security are eliminated.

The low-power-consumption BOXER-6405 features a 6W TDP, and it can also serve as an effective IoT gateway device, as WiFi and 4G modules can be installed via the machine’s two mini card slots.

AAEON has ensured the BOXER-6405 is robust enough to handle harsh industrial environments. The fanless system has an IP40 rating, an operational temperature range of -20oC to 60oC, and a DC power input range of 9V to 24V. The next-generation box PC also features a cable-free, modular internal design that makes it resistant to vibrations and allows users to easily replace the DRAM or HDD.

The BOXER-6405 is compact, energy efficient, and capable of handling the latest AI technology,” said AAEON system platform division product manager Ethan Chiu. “As an edge device, it will also work faster, cost less, and provide a greater level of security than standard AI systems.

AVRFT234 – Small AVR-ISP Programmer

Posted on by mixos

A small avrdude compatible AVR-ISP programmer based on the FTDI FT234X which only needs a standard micro USB cable.

found many fairly big/bulky AVR-ISP programmers in the “middle” of cables (USB cable->programmer->cable->[adaptor->]6-pin connector) but I wanted something compact for occasional use I could carry around and only needed a standard micro USB cable so I made the AVRFT234 utilising the FTDI FT234X.

It can be used with recent versions of Avrdude (6.3) to program AVR IC and bootloaders for many AVR based Arduino and clone boards using the standard 6 pin SPI pinout header.

AVRFT234 – Small AVR-ISP Programmer – [Link]

Arduino + WebUSB + Circuit Simulator = Fun

Posted on by mixos

Connect your Arduino via WebUSB with an web application circuit simulator. by FreeGroup @ www..arduino.cc

A awesome feature in Chrome is support for the WebUSB API, which allows web apps to communicate with USB devices, once user consent is given. This opens up a ton of cool possibilities for the future of web application and hardware interoperability, but may also worry both users and developers when it comes to privacy and security concerns.

WebUSB requires an Arduino model that gives the sketch complete control over the USB hardware.

Arduino + WebUSB + Circuit Simulator = Fun – [Link]

World’s smallest LED blinky

Posted on by mixos

Mike Harrison has build what he claims the “world’s smallest” led blinky. Likely it is based on the CPH3225A supercapacitor giving the blinky a footprint of 3.2 x 2.5 mm. With that in hand he added a PIC 10f322 microcontroller in a SOT23 package, an 0603 smoothing capacitor, and an SMD LED. The tiny structure is charged using a CR2032 battery and it blinks for 6 minutes.

World’s smallest LED blinky – [Link]

TOP PCB Companies