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Gravity: I2C Oxygen Sensor is on sale for $53.90

Posted on by mixos

The Gravity: I2C Oxygen Sensor is based on electrochemical principles and it can measure the ambient O2 concentration accurately and conveniently. With high anti-interference ability, high stablility and high sensitivity, this arduino-compatible oxygen sensor can be widely applied to fields like portable device, air quality monitoring device, and industries, mines, warehouses and other spaces where air is not easy to circulate.

Features

  • High sensitivity
  • I2C Interface
  • Compatible with both 3.3V and 5V micro-controllers
  • Polarity protection

Specification

  • Detection of Gas: oxygen
  • Operating Voltage: 3.3 to 5.5V DC
  • Output Signal: I2C output
  • Measurement Range: 0~25%Vol
  • Maximum Measurement limit: 30%Vol
  • Resolution: 0.15%Vol
  • Sensitivity: (0.10±0.05) mA (in the air)
  • Stability: <2% (Every month)
  • Repeatability: <2%
  • Response Time: ≤15 seconds
  • Operating Temperature: -20～50℃
  • Operating humidity: 0～99%RH (no condensation)
  • Pressure Range: standard atmospheric pressure ±10%
  • Lifetime:> 2 years (in the air)
  • Dimension(L x W x H): 37 * 27 * 24.5 mm/1.46 * 1.06 * 0.97 inches
  • Weight:0.037kg

This compact dfrobot oxygen sensor supports I2C output, it can be calibrated in the air, can accurately measure the oxygen concentration in the environment. It is compatible with many mainboards like Arduino Uno, esp32, Raspberry Pi, and so on. Its effective range is 0~25%Vol, and resolution can reach to 0.15%Vol. It supports wide range input voltage: 3.3V to 5.5V. Moreover, the lifetime is as long as 2 years. With a simple Gravity interface and practical sample code, you can build your own oxygen concentration monitor easily and conveniently.

Rechargeable 100-µAh batteries come in pint-sized SMD format

Posted on by mixos

TDK Corporation presents a new packing unit for CeraCharge, the world’s first SMD technology solid-state rechargeable battery, in the compact size EIA 1812 (4.4 x 3.0 x 1.1 mm3). The packing unit (B73180A0101M199) includes 10 blister-packed CeraCharge batteries that come in a vacuum-sealed plastic bag. The components are manufactured in regular series production and are suitable for test purposes, prototype construction and the installation of pilot lines. The packing unit can be obtained quickly and easily from selected TDK service distributors.

CeraCharge can be recharged more than 1,000 times, and has a capacity of 100 µAh at a nominal voltage of 1.5 V. Currents in the range of a few mA can also be rapidly drawn. Thanks to the SMD technology, it is simple to fit the batteries and process them in reflow soldering processes, which in turn, reduces the production costs of the device. CeraCharge is designed for a temperature range of -20 °C to +80 °C.

Unlike most ordinary technologies, CeraCharge is a solid-state rechargeable battery that uses a ceramic solid as electrolyte instead of liquid electrolyte, thus eliminating the risk of fire, explosion or leakage of electrolyte fluid. In a similar way to ceramic capacitors, CeraCharge is based on multilayer technology and combines a relatively high energy density in a very compact space, with process security, when manufacturing multilayer construction components.

To increase capacity and voltage, individual CeraCharge chips can be connected in series and in parallel as required, opening up a very wide spectrum of potential uses – especially in IoT applications. For example, this could include real-time clocks, Bluetooth beacons, wearables, or energy harvesting.

5.5″ 1440×2560 High Resolution with 2 channel MIPI for VR TFT LCD- MIPI

Posted on by mixos

DM-TFT55-419 is a 5.5″ High-Resolution TFT display sold for $35 on displaymodule.com

Main Features

  • 5.5″ IPS Screen
  • High resolution 1440×2560 Pixels
  • TFT Interface: 2 channel 4 Lane MIPI
  • Divding two display area by two channel MIPI
  • Be suited to VR display products development

Turn Your Arduino to a UPDI Programmer

Posted on by Emmanuel Odunlade

ATtiny series of microcontrollers have, in recent times, been on the receiving end of a renewed love from the community. The processing power and new features, packed into the tiny form factor which houses the new chips have been a major contributor to their adoption, however,  one other major contributor is the existence of tools that make the process of developing embedded hardware with the chips easy. One of such tools is the jtag2updi firmware developed by ElTangas.

The Jtag2updi firmware is designed to run on MCUs like the Atmega328p, or other AVR MCU (including experimental support for atmega1280/2560, and for Logic Green LGT8F328P/D AVR clones with 32 pins or more). It enables the microcontroller to interface with AVRdude using the jtagice Mk2 protocol via a serial link and provides a bridge that allows you upload codes to the new Attiny817 family of MCUs, that use the UPDI interface.

An illustration of the process facilitated  by the firmware is provided below:

avrdude -> HW Serial interface -> Programmer MCU (e.g. Mega328P) -> SW Serial on PD6 -> Target MCU (e.g. tiny817)

The jtag2updi relationship with avrdude facilitates the use of the Arduino IDE as a development platform for the ATtiny series of microcontrollers and the fact that the firmware works on microcontrollers like the atmega328p means it can be hosted on boards like the Arduino Uno/Nano, transforming them into programmers for the new chips. Using Arduino boards like the Uno/Nano requires a few modifications like disabling the auto-reset feature of the board using the techniques described here. https://playground.arduino.cc/Main/DisablingAutoResetOnSerialConnection.

The jtag2updi firmware has gone through several iterations and most of the flaws in the previous versions have been fixed and improvements made. One of the major challenges with the past versions is the firmware freezing while waiting for a target that wasn’t working (for example, because it was connected incorrectly) or the host (for example, if you entered a slow command, like reading a 128k flash memory when you didn’t intend to, and ctrl-c hoping to “save time”), requiring a reset to reconnect to it. This has been fixed in the current version using timeouts on communication with both the host and the target.

jtag2updi has officially only been tested on tinyAVR 0-series and 1-series and ATmega 328p/168p, but it has been used widely in the community and It is expected to work on classic megaAVR x8, x4, x1, and x0 parts, as well as megaAVR 0-series and AVR-DA parts.

All of the firmware sources, build process, documentation, list of compatible devices, and build guidelines can be found on the project’s Github repo.

Fanless 4K Digital Signage Player with 8th Gen Intel® Core™ U-Series Processors

Posted on by mixos

IBASE Technology Inc., a world leader in the manufacture of a wide range of digital solutions, has rolled out the SI-642-N 4K digital signage player that leverages the 8th Gen Intel® Core™ U-series processors. The platform can be used in commercial establishments to increase brand awareness and customer engagement or deployed in transportation networks to provide real-time information and advertising relevant to the traveler.

The fanless SI-642-N offers high performance and high reliability for 24/7 operation in an industrial-grade design. It is integrated with the IBASE iSMART and Observer technologies for remote monitoring, power on/off scheduling, power recovery, and low-temperature boot functions. With the Intel HD Graphics 620, the system can simultaneously support two independent displays (1x HDMI 2.0 & 1x Active DisplayPort 1.2) with 4K (4096 x 2160) @60Hz resolution as well as two independent audio outputs.

SI-642-N FEATURES:

  • iSMART intelligent energy-saving & Observer remote monitoring technologies
  • 8th Gen Intel® Core™ U-series processor
  • 1x HDMI 2.0 + 1x Active DisplayPort 1.2 with independent audio output
  • 2x DDR4 2400 SO-DIMM, dual channel, Max. 32GB
  • 1x M.2 B-Key (3042) for 4G LTE
  • 1x M.2 M-key (2280) for storage
  • 1x M.2 E-key (2230) for WiFi or capture card option
  • TPM 2.0, vPro and watchdog timer
  • Slim & compact fanless design

The SI-642-N houses the MBD642 motherboard populated with dual Gigabit LAN, 4x USB 3.1, dual channel DDR4 with up to 32GB support and expansion slots including M.2 3042 B-key for 4G/LTE, M.2 2280 M-key for storage and M.2 2240 E-key to install optional capture cards. It also has the Intel vPro and TPM 2.0 features to deliver increased productivity, remote manageability and data security. The SI-642-N is currently available in four models that differ in the processor type and operates on both Windows 10 and Linux Ubuntu operating systems. For more information, please visit www.ibase.com.tw

Axiomtek’s Ultra-slim 4K Digital Signage Player with Dual Displays – DSP501-527

Posted on by mixos

Axiomtek – a world-renowned leader relentlessly devoted in the research, development and manufacture of series of innovative and reliable industrial computer products of high efficiency – is pleased to release the DSP501-527, a digital signage player powered by the 8th generation Intel® Core™ i5/i3 (codename: Whiskey Lake) and Celeron® processor. With the rise of artificial intelligence (AI) facial recognition and real-time promotions, the high-performance DSP501-527 has added support for Intel® Movidius™ Myriad™ X VPU and Intel® OpenVINO™ toolkit. In addition, the DSP501-527 supports dual 4K displays with its DisplayPort++ and HDMI 2.0 ports to cope with the growing demand for context-aware digital signage. Featuring fanless operation and compact-size, this digital signage player is well-suited for digital menu boards, digital directory boards, self-service kiosks, video walls, and more.

“Today, retailers are leveraging in-store media, artificial intelligence and digitalization to create dynamic store experiences and simplified processes. Axtiomtek’s DSP501-527 is designed for advertising and information dissemination in retail areas,” said Yifei Wang, a product manager of Product PM Division at Axiomtek. “The DSP501-527 supports 4K dual displays for captivating visual experiences. This outstanding digital signage player also supports Axiomtek’s Intelligent Remote Device Management (RDM) function to offer integrators and managed service providers a cost-effective and user-friendly device management solution for applications where multiple digital signage devices are desired.”

Axiomtek’s DSP501-527 has rich I/O interfaces and multiple expansions. It’s I/O choices include four USB 3.0 ports, one USB 2.0 ports, one Gigabit Ethernet port, one RS-232, one Mic-in, one Line-out, one SIM card slot and four antenna openings. It has one M.2 Key E 2230 slot and one M.2 Key B 3042 for Wi-Fi, Bluetooth, or 4G LTE. Capturing and processing massive videos, images, or data also needs exceptional storage performance. The DSP501-527 has one M.2 Key M 2280 for SATA and NVMe storage. It is also equipped with two DDR4-2400 SO-DIMM slots for up to 32GB of system memory. Other features include one lockable DC power input, one power button, one HDD LED, and one reset switch. Moreover, the durable system can withstand a wide operating temperature range from 0°C to 50°C and vibration of up to 3G. This compact system runs on Windows® 10 IoT and Linux. It has been certified with CE and FCC Class A.

Advanced Features:

  • 8th gen Intel® Core™ i5/i3 & Celeron® processor (codename: Whisky Lake)
  • 2 DDR4-2400 SO-DIMM for up to 32GB of memory
  • DisplayPort++ and 1 HDMI 2.0 ports
  • 5 USB and 1 GbE LAN ports
  • 1 M.2 Key E 2230 for Wi-Fi/BT
  • 1 M.2 Key B 3042 slot for 4G LTE

The DSP501-527 is now available for purchase. For more product information or customization services, please visit our global website at www.axiomtek.com or contact one of our sales representatives at info@axiomtek.com.tw.

Battery Management IC with UART Interface for Sensing and Cell Balancing

Posted on by mixos

Infineon Technologies AG has expanded its product offering for Battery Management System (BMS) with the TLE9012AQU a new sensing and balancing IC that is designed for batteries in hybrid and electric cars and other applications. It can measure the voltage in up to twelve battery cells with an accuracy of ± 5.8 mV over the entire temperature and voltage range as well as the operating life cycle. By supporting up to five external temperature sensors, the device provides an integrated cell balancing function and uses an iso-UART interface for communication.

The BMS helps optimally utilize the battery capacity so that it operates for the longest possible range in an electric car, it also makes sure that the battery does not age prematurely. It is also used to determine the battery’s state of charge and state of health to estimate the available range and remaining service life. The TLE9012AQU helps in providing necessary measurement data and ensures a balanced state of charge through cell balancing.

Cell balancing is achieved through twelve balancing switches integrated on the chip- one per channel. They are designed for currents up to 150 mA and if there are higher balancing currents, the device can also support external switches. The cell balancing can be programmed to stop without a signal from the microcontroller after a defined time of up to 32 hours or when the cell has reached a defined voltage so that the microcontroller switches to sleep mode for saving energy.

A programmable noise filter is being used in the balancing IC to minimize the influence of interfering signals on the measurement results. To get comparably even results, the measurement is taken in all cells simultaneously. Long-term stability of measurement is maintained with the help of the compensation algorithm with an integrated stress sensor and extended temperature compensation.

The TLE9012AQU is suitable for batteries that are partitioned with twelve cells per module, as it has twelve channels. The iso-UART interface for data exchange between these modules and with the microcontroller allows easy voltage isolation and ensures data integrity. It has 20 serially connected devices and a ring topology for communication so that the communication isn’t broken even if any one of the devices failed.

Availability

In addition to the TLE9012AQU, Infineon is launching a matching iso-UART transceiver component (TLE9015QU). Both devices will be available in July 2020. Further information is available at www.infineon.com/battery-management-ics.

GWInstek GLC-9000 Leakage Current Tester

Posted on by mixos

The GLC-9000 Leakage Current Tester provides comprehensive testing for general purpose electric equipment.

Saelig Company, Inc. has introduced the GWInstek GLC-9000 Leakage Current Tester performs leakage current (also called touch current) tests on general purpose electric (IEC 60990) equipment. This tester uses nine measurement device networks to simulate the human body interacting with equipment under test.  Leakage current testing is needed to ensure that products to comply with specific standards and regulations such as IEC, UL, JIS, etc.

The GLC-9000 features a large TFT LCD touch panel for test configuration, displaying measurement setting information and results simultaneously. 50 preset testing conditions are provided, which conform to IEC60990 and other standards, to allow for quick general electric equipment test setups. 30 additional memory locations are available for user-defined tests. A Meter mode is also provided on the GLC-9000, using the measurement terminals T1/T2 to display measured voltage. During voltage measurement, the SELV (safety extra low voltage) function is used to detect whether a voltage value between measuring points exceeds the SELV preset.  Measurements are made with up to 0.01uA and 0.1V resolution.

  • 50 Preset Test Conditions Conform to IEC 60990
  • Up to 30 memorized customer-defined tests
  • Touch Panel with Color LCD Display
  • 9 measurement network simulate Human Body resistance
  • Meter Function with SELV/CONV Function
  • Upper & Lower Limits for PASS/FAIL
  • Leakage current measuring modes : DC/AC/AC+DC/AC Peak
  • Interfaces : RS-232/GPIB/USB Host & Device/EXT I/O

Housed in an aluminum benchtop case and weighing 11lb, the 13.0” x 13.8” x 5.9” GLC-9000 Leakage Current Tester is made by the Taiwanese test and measurement specialists GW Instek.   Helpful in production testing, research & design, quality assurance, and system verification, it is available now from Saelig Company, Inc.

Tiny NanoPi NEO3 SBC comes with GbE and USB 3.0 and is ready for network storage

Posted on by mixos

The NanoPi NEO3 is another fun board developed by FriendlyELEC for makers, hobbyists and fans.

Specifications:

  • Soc: RockChip RK3328, Quad-core 64-bit high-performance Cortex A53
  • RAM: 1GB/2GB DDR4
  • LAN: 10/100/1000M Ethernet with unique MAC
  • USB Host: 1x USB3.0 Type A and 2x USB2.0 on 2.54mm pin header
  • MicroSD Slot: MicroSD x 1 for system boot and storage
  • LED: Power LED x 1, System LED x 1
  • Key: User Key x 1
  • Fan: 2Pin JST ZH 1.5mm Connector for 5V Fan
  • GPIO: 2.54mm pitch 26 pin-header, include I2C, UART, SPI, I2S, GPIO
  • Serial Debug Port: 2.54mm pitch 3 pin-header, 1500000bps
  • Power: 5V/1A, via Type-C or GPIO
  • PCB Dimension: 48 x 48mm
  • Working Temperature: -20℃ to 70℃
  • Weight: 22g

tomshardware.com writes:

Storage is available via a microSD card slot, sadly there is no space for any SATA or NVME storage options. GPIO access is provided via a 26 pin interface, which features I2C, UART, SPI and I2S. Operating system support is currently an unknown quantity, but it is a good bet that operating systems for other RockChip boards will be compatible.

more information can be found on the wiki: http://wiki.friendlyarm.com/wiki/index.php/NanoPi_NEO3

Low-power AI sensor board for machine learning at the edge

Posted on by mixos

Eta Compute has launched an integrated, ultra-low-power AI Sensor Board, the ECM3532 AI Sensor Board, which has been designed for machine learning at the edge. [via]

The board was developed to cut the initial phase of smart sensor development through its TENSAI SoC. The low power ECM3532 AI Sensor Board contains almost every function needed for a working prototype. Because of the low power design, the board is able to for months on a single battery cell while performing machine learning algorithms. It integrates two PDM microphones, one pressure and temperature sensor, and one 6-axis MEMS accelerometer and gyroscope. It has a form factor of only 1.4 inch x 1.4 inch. The embedded battery socket and Bluetooth connectivity through ABOV Semiconductor’s A31R118 chip, makes it an ideal asset for IoT deployment and field testing application prototypes. The board’s expansion connector makes it simple to add other RF interfaces.

“Our fully integrated ECM3532 AI Sensor Board reduces risk, complexity, and costs for developers creating low power smart sensors and accelerates their time to proof of concept,” said Ted Tewksbury, CEO of Eta Compute. “For the first time, they can rely on a single, fully integrated board complemented by Edge Impulse’s comprehensive SaaS development platform to drive innovative IoT solutions to market.”

“Designing low-power devices with embedded machine learning has been a huge challenge,” said Zach Shelby, CEO of Edge Impulse. “The new Eta Compute AI Sensor Board opens up endless application possibilities for developers without compromising on power consumption, and with full support on Edge Impulse we reduce development time to days instead of months.”

Eta Compute’s ECM3532 AI Sensor Board is optimal for implementing machine learning applications in IoT and low power edge devices including:

  • Voice activation and voice commands in consumer, home, and building automation products
  • Asset tracking and monitoring and predictive maintenance in industrial products
  • Context-awareness in consumer and industrial applications

The board can be purchased through Digikey.

The company also announced it is hosting a free online workshop with Edge Impulse on July 14, 2020. The first 50 qualified developers planning or working on projects will receive a complementary ECM3532 AI Sensor Board.

More information and register: https://etacompute.com/win-a-free-ai-sensor-board/

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