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Acconeer’s Low-power XM132/XE132 Entry radar module with a solderable design features

Posted on by mixos

Acconeer’s Low-power radar module with a solderable design features a land grid array for connection to a host PCB

Acconeer’s XM132 entry module is a low-power radar module with a solderable design featuring a land grid array for connection to a host PCB. This entry module integrates the A111 pulsed coherent radar with a 32-bit 64 MHz Arm® Cortex® M0+ MCU, the STM32G071CBU6 from STMicroelectronics with 128 KB of Flash memory and 36 KB of RAM. The module supports a single supply operating voltage range from 1.8 V to 3.6 V.

The XM132 entry module is an integration-ready module intended to be used for evaluation and development purposes as well as for integration into commercial products. With software adapted for specific use cases, cost and time-to-market are streamlined.

The XM132 can be used as a stand-alone module where customers can embed their application on top of the Acconeer RSS (radar system software) using the RSS API (application programming interface). It can also be used with an external host controller where communication to the module is via a register command protocol using one of the following interfaces: UART, I2C, and GPIO. The Acconeer RSS including a software development kit (SDK) for stand-alone usage is available for download to the XM132 via the Acconeer web page. An exploration tool that helps visualize the radar measurement results can also be downloaded.

To quickly get the XM132 up and running, use the evaluation board XE132, which has the XM132 entry module soldered to it. The XE132 has support for UART communication over USB, which enables a straight-forward way to flash and debug the module, as well as easy access to all interfaces from the XM132 module via pin-headers.

Features:

  • A111 60 GHz PCR sensor with 32-bit Arm Cortex M0+ MCU (STM32G071CBU6) 64 MHz, 128 KB Flash; 36 KB RAM
  • Form factor: 25 mm x 20 mm
  • All components mounted on PCB top side and solder pads (LGA) on PCB bottom side
  • 36 KB SRAM and 128 KB Flash
  • Single-supply operating voltage range: 1.8 V to 3.6 V
  • Operating temperature range: -40°C to +85°C
  • Included on XE132 breakout board for evaluation purposes
  • Compliant with LH132 lens kit for evaluation purposes
  • Support for customer embedded applications (SDK supported)
  • External interfaces: UART, I2C, GPIO, and reset
  • SW flash and SW debug with the XE132 breakout board
  • Support for a simplified protocol for host configuration

Applications

  • Smart presence and motion detection
  • Parking space occupancy detection
  • Level measurement: waste level and tank level

more information: https://www.acconeer.com/products

800 V Normally-Open Solid State Relay – PLA172P Series

Posted on by mixos

IXYS’ solid state relay with optically coupled MOSFET technology and 105°C temp is able to provide enhanced input to output isolation

IXYS Integrated Circuits has a PLA172P series 800 V normally-open solid state relay with 105°C specs and 5000 VRMS input-to-output isolation. It is offered in a single-pole, normally open (1 Form A) configuration with a unique device pinout. This provides more than 6.8 mm of pad-to-pad separation between the high voltage output pins that can accommodate peak load voltage of 800 V. It features a rugged design built from UL 94 V-0 materials with a guaranteed operating temperature range of -40°C to +105°C.

Features

  • Guaranteed specifications at +105°C
  • Operational temperature range: -40°C to +105°C
  • 5 mA input control current over operating temperature range
  • 800 VP blocking voltage
  • 6.8 mm pad-to-pad separation of output pins
  • 5,000 VRMS input/output isolation
  • Small surface-mount package
  • Arc-free with no snubbing circuits
  • No EMI/RFI generation
  • Flammability rating UL 94 V-0

Applications

  • Industrial
  • Instrumentation
  • Medical
  • Isolation test equipment
  • Battery isolation monitors
  • Industrial solar field isolation monitors

more information: https://www.ixysic.com

QGC Pyroelectric Infrared Analog Gas Sensors

Posted on by mixos

KEMET’s analog gas sensors feature a fast and stable response over a wide operating frequency range

KEMET’s QGC thin film pyroelectric gas sensors can be reduced in physical size and still provide high sensitivity with fast frequency operation, enabling this highly stable one to four element sensor in a TO39 package. The sensor element is built into a low noise circuit that has an internal CMOS operational amplifier with a 10 GΩ feedback resistor outputting a voltage signal centered around half the supply rail.

The evaluation kit includes USEQGCDAC82L00 dual-channel CO2 sensor, IR emitter (with reflector and sapphire window), brass gas cell (5 cm), PCB with microcontroller and ADC, 9 V power supply, micro USB cable, and a software CD. The PCB enables adjustment of 2nd stage amplification, sampling, and filtering parameters, followed by analog-to-digital conversion with USB connection to a PC.

Features

  • Fast, stable response over a wide operating frequency range
  • 1, 2, or 4 sensor elements in one package
  • TO39 package
  • Analog output
  • Integrated op amp

Applications

  • Gas and gas flues
  • HVAC (refrigerant or CO2-driven ventilation system)
  • Industrial process and safety
  • Medical capnography and anesthesia
  • Handheld breath analysis and breath rate measurement
  • Breath actuated dispensers
  • Automotive cabin air quality
  • Exhaust (CO2 content)
  • Home and building technology
  • Environmental monitoring (ambient CO2 levels)
  • Pollution air quality in home, office, and car (excessive CO2 levels)

more information: https://content.kemet.com/datasheets/KEM_SE0213_QGC.pdf

Microchip PolarFire SoC FPGA Icicle Kit

Posted on by mixos

Microchip’s PolarFire SoC FPGA Icicle Kit is an evaluation platform for the company’s mid-range PolarFire SoC FPGA family, a portfolio of RISC-V-based devices that contain secure hardware features, are capable of running off-the-shelf Linux and/or real-time operating systems (RTOS), and consume up to 60 percent less power than competing FPGA solutions, according to the company.

The SoC FPGA onboard the PolarFire SoC FPGA Icicle Kit, the MPFS250T-FCVG484EES, contains 254k logic elements with a four-input lookup table (LUT) and D-type flip-flop, 784 18×18 multiply accumulate (MACC) blocks, a five-core RISC-V CPU subsystem from SiFive, and 2 MB of L2 cache memory with support for deterministic modes (Figure 1). Data can also be stored off-chip in either a 2 GB LPDDR4, 1 Gb SPI flash, or 8 GB eMMC flash (muxed with an SD card slot) onboard the PolarFire SoC FPGA Icicle.

The RISC-V processor complex includes a 64-bit RISC-V monitor core with secure boot functionality alongside four 64-bit RISC-V application cores that connect to a coherency switch and then onto the memory subsystem. The coherent switch connects to a memory-protected and QoS-enabled AMBA switch over the AXI interface, and then on to the PolarFire FPGA fabric.

In terms of signals on the Icicle board itself, users will find a variety of interfaces and expansion ports for easy system integration and rapid prototyping, including:

The I²C interface connects to a Microchip PAC1934T-I/JQ PMIC that performs FPGA and DDR power rail sensing. Meanwhile, an onboard JTAG connector and FlashPro6 programmer (onboard for production kits, external for prototyping kits) provide developers with direct debug access and an onramp to 52 test points.

GPIOs connect to User and Power LEDs, as well as a set of four pushbuttons.

… read more

ST732 – 300mA, 28 V low-dropout voltage regulator, with 5 µA quiescent current

Posted on by mixos

The ST732 is 300 mA LDO regulator, designed to be used in several medium voltage applications.

Ultra-low quiescent current of 5 µA makes it suitable for applications permanently connected to power supply/battery. This feature is also useful when electronic modules remain permanently turned on.

The ST732 embeds protection functions, such as current limit, short-circuit, and thermal shutdown. The extended input voltage range, very low drop voltage, and low quiescent current features make it suitable also for low power after-market automotive and consumer applications.

Key features

  • Wide input voltage range: 2.5 V to 28 V
  • Ultra-low quiescent current: typ. 5 µA at no-load, 10 µA max. across the full temperature range
  • Output voltage accuracy: ± 2%
  • Output current up to 300 mA
  • Fixed output voltage versions, starting from 1.2 V with 100 mV step
  • Stable with low ESR capacitors (0.47 µF min.)
  • Thermal shutdown protection
  • Current limit protection
  • -40 °C to +125 °C operating temperature range

more information: https://www.st.com/en/power-management/st732.html

Omron’s ToF sensor module offers real-time 3D sensing

Posted on by mixos

Omron’s ToF sensor offers real-time 3D sensing of distance to humans or objects

Omron EMC’s B5L ToF (Time of Flight) sensor uses the flight time of light to measure distances to objects. The B5L ToF sensor is able to turn captured images into 3D images and can measure at a speed of 20 frames per second, allowing it to track the movement of objects three-dimensionally. The B5L TOF sensor uses extensive distance information that enables the sensor to identify its peripheral environment. The B5L ToF sensor offers powerful ambient light immunity to ensure stable detection performance free from saturation even in bright places, achieves high output accuracy for compensated signals, has a long life thanks to Omron’s unique circuit design and heat emission design, and is ideal for applications that require the use of multiple devices (such as robots) at the same time.

Applications

  • Ideal for applications that require extensive distance information
  • AMR/service robots
    • Drop detection
    • Environment recognition
    • Periphery recognition
    • Human recognition
  • Logistics and conveyance
    • Volume and shape measurement
    • Empty space detection
  • Monitoring and observation
    • Behavioral understand and observation of patients under long-term care
  • Automatic doors/elevators
    • Counting people
    • Tracking traffic flows

Features

  • Interfering light immunity: ambient light immunity equivalent to 100,000 lx
  • Capable of delivering stable detection performance even in direct sunlight
  • High precision of ±2% (2 m)
  • Outputs compensated signals to minimize control processing on the end user’s actual machine
  • Durable: long life equivalent of five years under continuous driving
  • Interference prevention function (up to 17 units) allows the use of multiple devices at once

more information: https://www.omron.com

Quectel RG500Q is a 5G Sub-6 GHz LGA module optimized specially for IoT

Posted on by mixos

Quectel RG500Q is a series of 5G Sub-6 GHz LGA modules optimized specially for IoT and M2M applications. Adopting the 3GPP Rel-15 technology, it delivers maximum data rates up to 2.5 Gbps downlink and 900 Mbps uplink. It supports both 5G NSA and SA modes, Option 3x, 3a and Option 2 network architectures, which makes it backward compatible with 4G/3G  network. It is pin-to-pin compatible with Quectel LTE-A Cat 12 EG512R-EA module. It can meet customers’different application demands for high speed, large capacity, low latency, and high reliability etc.

RG500Q series contains two variants: RG500Q-EA and RG500Q-NA*. It supports Qualcomm® IZat™ location technology Gen9C Lite (GPS, GLONASS, BeiDou, Galileo and QZSS). The integrated GNSS receiver greatly simplifies product design and provides quicker, more accurate and more dependable positioning capability.

A rich set of Internet protocols, industry-standard interfaces (USB 2.0/3.0/3.1, PCIe 3.0, RGMII, PCM, UART, etc.) and abundant functionalities (USB drivers for Windows 7/8/8.1/10, Linux and Android) extend the applicability of the module to a wide range of IoT and M2M applications such as a business router, home gateway, STB, industrial laptop, consumer laptop, industrial PDA, rugged tablet PC and video surveillance.

Key Benefits

  • Optimized for IoT and M2M applications with LGA form factor   supported
  • Worldwide 5G/4G/3G coverage
  • 5G NSA and SA modes supported
  • Multi-constellation GNSS receiver available for applications requiring fast and accurate fixes in any environment
  • Feature refinements: DFOTA* and VoLTE (optional)

more information: https://www.quectel.com/product/rg500q.htm

STMicroelectronics Raises Performance and Value for Smart, Connected Devices with Even Faster STM32H7 Microcontrollers

Posted on by Micael Coutinho

Have you been on the lookout for a deeply embedded board capable of rendering good quality HMI interfaces with the capabilities you normally find on microcontrollers? You may want to take a look at the new STM32H7 series of MCU’s, as they are the industry’s first ARM Cortex-M7 core with embedded Flash memory, running at a stunning core speed of 550 MHz!

But what exactly are we looking at here? First off, at 550 MHz, these single-core devices have the fastest core speed on the market for an MCU that integrates Flash storage on-chip to run deeply embedded applications. They are available with up to 1 MB of Flash memory, enabling them to perform very well while keeping the costs low. But you are not limited, as they can interact with external storage while keeping security and performance in mind too. To help with memory-hungry applications (like high resolution, colorful graphical interfaces, and video), they are aided by features such as the Flexible Memory Controller (FMC) and Octal SPI memory interface. This allows you to go even further when it comes to creating more immersive and refined user experiences.

Regarding specifications, we are looking at Cortex-M7 core with:

  • 32 kB I-Cache and D-cache
  • Tightly couple instruction RAM (ITCRAM) with remapping for zero latency in time-critical routines
  • FMAC (filtering) and Cordic (trigonometric) blocks for mathematical acceleration
  • Advanced analog peripherals, such as 2x 16-bit ADC’s and 1x 12-bit low power ADC and interfaces to popular industrial connectivity interfaces
  • Superior graphical performance with the ST Chrom-ART Accelerator

Regarding software, the TouchGFX framework and Designer are going to help you create those beautiful user interfaces you are looking for, and are available for free. You can also dip your feet in neural networks, and other AI technologies, thanks to the STM32Cube.AI, to bring your neural networks, machine learning, and computer vision projects to life easily. When it comes to security, you get the STM32Trust security suite, which supports on-the-fly decryption (OTFDEC), enabling encrypted code to be run from external memory and secure firmware install (SFI), letting OEM’s order standard products from anywhere, to be programmed only with encrypted code. These two features safeguard the intellectual property in the Flash memory. You also get some other features such as secure boot support, symmetric (hardware / software), and asymmetric (software) encryption and cryptographic key provisioning, among other things. Concluding, their ecosystem can get you started on projects easily, along with the popular development environments from ARM and IAR.

When it comes to pricing and availability, there are numerous packages to choose from, along with development boards. The pricing for the MCU’s start at $2.83 for the STM32H730VBT6, for orders of 10000 parts. Overall, it is a very solid product that enables you to build a wide range of projects, starting from home automation to computer vision.

STM32H7 series link: https://www.st.com/en/microcontrollers-microprocessors/stm32h7-series.html

ESP32 Based Open Hardware Storage device Announced on Crowdsupply

Posted on by Tope Oluyemi

An Affordable, Open Hardware Storage device, Powered by ESP32 called Maypole has been announced on Crowdsupply. The Maypole is like a USB flash memory stick. At its core is the ESP32, which enables you to transfer files— over a 2.4 GHz Wi-Fi connection—to and from an onboard MicroSD card with room for up to 32 GB of data. When you configured the Maypole appropriately, it turns any USB port into a hub for wireless collaboration. The Maypole is very versatile, its built-in LiPo battery enables you to use it to back up your data without even plugging it in, or you can load it up with files through the USB interface and distribute those files to others, in a small group setting, without the malware risks that come from “passing it around.”

The Maypole can detect when it’s being sent new data, which enables it to disconnect from anything that might be using it as a mass storage device before updating the set of files that it makes available over USB. It can then re-connect automatically. Explaining this process, they say:

“Suppose, for example, you have a printer with the ability to read files from a USB flash drive. By plugging Maypole into that USB port, you can allow anyone on the local network to send print jobs. And it’s not just printers. Whether you’re in an industrial setting, a workshop, a lab, a makerspace, or your own living room, there’s a good chance you’re sharing the room with something that accepts input files through a USB port. Examples include sewing machines, CNC routers, laser cutters, car stereos, digital picture frames, laboratory equipment, video projectors, bench-top tools, and countless other devices.”

The company explains scenarios where you can apply the Maypole:

“Maypole works in the other direction as well. Suppose you’re installing a security camera in your office. While it’s easy enough, these days, to find a camera that stores video in the cloud, what if you want a little more control over such potentially sensitive data? You could buy a camera that records to an external USB device, but you’re still going to want that video stored “off site” (to ensure that it doesn’t disappear in the event of a break-in). Which is where Maypole comes in. Log footage directly to Maypole, then copy it down and delete it from anywhere within Wi-Fi range.”

Maypole offers you the opportunity to tinker. Using C/C++, MicroPython, or Lua—and a variety of cross-platform IDEs, including Arduino, VScode, PlatformIO, and Eclipse—you can customize its behavior, add functionality, or extend the platform. You can tweak the Maypole in various ways. You can add support for Bluetooth headphones and speakers, to make a portable music player or a collaborative jukebox, or you could add a feature that enables several Maypoles to synchronize the contents of their MicroSD cards with one another. You can also transfer files to and from Maypole over Bluetooth instead of Wi-Fi. About information on the Maypole, the company says:

“During the campaign, we will finalize and publish sample code and documentation that will walk you through the complete functionality of Maypole. Our goal is to ensure that anyone who wants to can not only use it, but can build upon it as well. And, of course, the ESP32 module itself is well-document by Espressif.”

Technical Specifications

  • ESP32 – PICO – D4
    • 240 MHz xtensa Ix6 dual-core processor
    • 2.4 GHz Wi-Fi
    • Bluetooth 4.2 and BLE
  • Power
    • Support for batteries up to 500 mAh
    • Battery protection
    • Automatic charging when Maypole is running off USB power
  • Wi-Fi Modes: STA, AP, or AP+STA mode
  • MicroSD: Supports for cards up to 32 GB

The project is coming soon on Crowdsupply, and you can signup to receive updates and be notified when the project launches.

0 to 10 V Adjustable Lab Power Supply with Current Control

Posted on by mixos

The circuit presented here is a very simple and easy to build Lab Power Supply. The output of this power supply is adjustable from 0 to 10V DC, and it has current limit control up to 3A. Two Trimmer potentiometers are provided to adjust the voltage and current. The input supply is DC 12V to 18V 3A or AC12V /3A. The screw terminals help to connect the input and output connections, and a large area on PCB provided as heat spread so no external heatsinks required. The power supply also includes over-temperature protection. The board is built using 2 x LT3083 chips, U1 is used as a current source and U2 provides adjustable output voltage.

0 to 10 V Adjustable Lab Power Supply with Current Control – [Link]

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