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Tiny Tri-color E-Ink display for Wemos D1 Mini board sells for $10

Posted on by mixos

Lolin has launched a small 2.13″ tri-color E-Ink display that is compatible with D1 mini, D1 mini Pro, and D32 Pro boards.

Specifications

The display can be programmed with Arduino using LOLIN_EPD, Adafruit_GFX, and Adafruit_BusIO libraries as explained in the Wiki. You’ll find three Arduino sketch samples on Github.

The display is available on aliexpress for 9.90USD with shipping included.

via www.cnx-software.com

Raspberry Pi Foundation Re-introduces Four IQAudio HATs at Lower Prices

Posted on by Emmanuel Odunlade

Sometime in December last year, Raspberry Pi Foundation, after acquiring IQAudio Brand, mentioned that it had plans to relaunch IQAudio’s four most popular HATs as their official Pi accessories. The foundation has now reintroduced the popular audio add-ons with improved features and lower prices ranging from $20 to $30.

“This is the first time we’ve brought third-party products into our line-up like this,” says Roger Thornton, Principal Hardware Engineer at Raspberry Pi. “IQaudio was one of the first companies to recognise the potential of Raspberry Pi as a platform for hi-fi audio. IQaudio products are widely used by hobbyists and businesses (in-store audio streaming being a particularly popular use case). So when the opportunity arose to acquire IQaudio’s brand and product line late last year, we jumped at it.”

The IQaudio HATs are: the IQaudio DAC+, the DAC Pro, the DigiAMP+, and the Codec Zero.

IQaudio DAC+

The IQaudio DAC+ is the cheapest of them all and it sells for just $20. The DAC+ is built on the PCM5122 DAC (Digital to Analog Converter) chip which offers 12/106-dB stereo DAC conversion with a 32-bit 384kHz PCM interface.

IQaudio DAC Pro — a super audiophile DAC for the Raspberry Pi

This add-on was previously sold for $33.75 but can now be purchased for a lower price of $25. The add-on has the same audio input formats and output connectors as the IQaudio DAC+, but this time the big brother of the PCM5242 DAC chip was used for a better Signal to Noise Ratio. The DAC Pro add-on also features a Pi-DAC headphone amplifier for an all-in-one Full HD audio experience, a 40-pin Raspberry Pi GPIO header and support for Balanced/Differential output in parallel to Phono/RCA line level output.

IQaudio DigiAMP+ — $30

DigiAMP+ integrates a Texas Instruments TAS5756M digital-input amplifier directly onto the HAT, so you can drive a pair of passive stereo speakers at up to 35W per channel.

DigiAMP+ must be powered by an external power source and needs an external supply of 12 ~ 24DC to operate. It can also act as a power source for the HAT and the Pi in parallel.

Codec Zero — $20

This delivers bi-directional digital I2S signals between the RPi and the onboard Dialog Semiconductor DA7212. It includes green LEDs, red LEDs, and a tactile button. It also supports devices like MEMS microphone and mono electret microphone.

More Details

The four audio add-ons are currently available and can be purchased via the usual Pi resellers.

You can visit the company’s products page for further details plus shopping pages. The IQaudio product brief here also has important information about the HATs.

New Kontron COM Express Module with AMD Ryzen Embedded V2000 Processor

Posted on by mixos

Kontron’s COMe-bV26 Computer-on-Module offers up to 8 cores and 16 threads for parallel workloads at the Edge

Kontron, a global leader in IoT/Embedded Computing Technology (ECT), is introducing a brand new COM Express® Basic Computer-on-Module based on the AMD Ryzen™ Embedded V2000 processor. It is the first processor on a COM Express® Type 6 module to support up to 16 parallel threads on up to 8 high-end performance cores. The large number of cores and threads makes the new application-ready COM Express® Basic module ideal for use in next-generation IoT edge devices that must perform more and more parallel processing tasks. At the same time, the high core and thread count also ensures maximum design efficiency, as previously separate applications can now be consolidated in a single system.

Specifications

  • Up to 64 GByte DDR4 memory (2x 32 GByte dual-channel DDR4 SO-DIMM)
  • Up to 8 PCIe lanes (4x PCIe 3.0 (up to 8 GT/s) 4x PCIe 2.0 (up to 5 GT/s))
  • Optional up to 1 TByte NVMe SSD onboard
  • Industrial grade versions available

Target applications for the new high-performance COM Express® Type 6 modules range from multi-device clients and multitask edge systems for the control of entire factories to high-resolution medical imaging systems in operating theatres. Other use cases include advanced multi-display casino game applications for immersive gaming, as well as digital signage installations with multiple displays and parallel streaming of multiple real-time transcoded videos to multiple end devices. Thanks to the high core count, all these applications can also host additional edge functions – such as separate secure edge gateways for secure IIoT connectivity, or AI inferences for edge analytics and situational awareness.

“Manufactured in 7nm technology, AMD’s 8-core high-performance processors open up an entirely new performance class for multifunctional edge systems. With our application-ready COM Express® Basic modules, OEMs can implement this new generation of multi-core embedded processors highly reliably and flexibly, and with very little NRE effort and short time-to-market,” explains Peter Müller, VP Product Center Modules at Kontron. “Compared to alternative designs in a smaller form factor, our COM Express® Basic modules provide more integrated and application-ready functions, as well as more powerful cooling. This makes it much easier to reliably deliver the full performance at 58 W TDP across the approved temperature range of 40° to +85° Celsius at all times.”

more information: https://www.kontron.com/products/boards-and-standard-form-factors/com-express/com-express-basic/come-bv26.html

Enter to win 1 of 5 nRF52 DK Nordic Semiconductor Development Kits

Posted on by mixos

Nordic Semiconductor has partnered with oemsecrets.com to give away 5 nRF52 DK development kits. To enter simply follow the link below for your chance to win.

The nRF52 DK is a Development Kit (DK) that includes hardware, firmware source code, documentation, hardware schematics, and layout files. This kit can be used for developing for the nRF52832, nRF52810, or nRF52805 SoCs.

ENTER NOW

 

The key features of the development kit include:

  • nRF52832 flash-based ANT™/ANT+™, Bluetooth® Low Energy SoC solution
  • Buttons and LEDs for user interaction
  • I/O interface for Arduino form factor plug-in modules

More Information

Proteus Adds SnapEDA CAD Model Search to Boost Electronics Design Productivity

Posted on by mixos

Engineers using the latest version of Proteus will now benefit from SnapEDA search integrated within its PCB design software, allowing them to innovate faster

Today, SnapEDA, creators of the first search engine for electronics design, and Labcenter Electronics, creators of Proteus Design Suite, are announcing a new collaboration that places SnapEDA directly within Proteus’ printed circuit board (PCB) design environment.

Creating computer-aided design (CAD) models is a time-consuming process that can take hours or even days for each component in a printed circuit board design. This is why SnapEDA created the pioneering electronics design search engine, allowing engineers to download ready-to-use models so they could start designing and innovating instantly.

This new collaboration between Labcenter Electronics and SnapEDA takes things a step further by allowing engineers to search and import SnapEDA’s CAD models directly within the Proteus Design Suite, without ever having to leave their design environment. The collaboration includes free PCB footprints, schematic symbols, and 3D models for millions of electronic components.

“Proteus is a highly-adopted PCB design tool, that is especially known for its simulation capabilities and ease-of-use. By integrating SnapEDA within Proteus, we’ll be able to make the experience of sourcing CAD models even more frictionless for Proteus users by allowing them to search and place parts without ever having to leave their design environment,”

said Natasha Baker, Founder & CEO of SnapEDA.

For Proteus, the library integration with SnapEDA is part of their commitment to continuously develop features that reduce the time to market for their customers.

“The integration of SnapEDA tools with Proteus gives our users quick and seamless access to literally millions of library parts,” said Iain Cliffe, Executive Director at Labcenter Electronics Ltd. “Searching for a library part in Proteus will now show relevant search results from SnapEDA and parts can then be imported straight into Proteus with a mouse click. This will be a real timesaver for our customers.”

Since the integration is cloud-based, engineers will benefit from new parts added to SnapEDA’s database each day.

SnapEDA’s database contains CAD models for millions of electronic components, ranging from electromechanical components, power converters, microcontrollers, timing components, integrated circuits, discretes, and much more.

The new SnapEDA Search capability is available within Proteus v8.12 and later.

Raspberry Pi Compute Module 4 IoT Router Carrier Board Mini

Posted on by mixos

Compute Module 4 IoT Router Carrier Board Mini is an internet expansion board based on the Raspberry Pi Compute Module 4. When connecting with a Gigabit network card via PCle, it brings Raspberry Pi CM4 two full-speed gigabit network ports and offers better performance, lower CPU usage, and higher stability for a long time work compared with a USB network card. Besides, with a mini size of 55 x62mm, the board still retains the characteristic GPIO pin header of Raspberry Pi, which makes it applicable for connecting other actuators, sensors, and smart cooling fan. Furthermore, there is also a USB2.0 interface that can be connected to mobile hard drives, printers, WIFI modules, LTF modules, etc.

Compute Module 4 IoT Router Carrier Board Mini now provides OpenWRT open-source router system. After a simple setup, it can be used as a router. It is also compatible with Raspberry OS, Ubuntu Server and other Raspberry Pi systems.

The powerful performance of BCM2711 4 core 1.5GHz Cortex-A72 and the rich software support in the Raspberry Pi community make this board a solid foundation for building high-performance gateways, smart routers, and home IoT platforms. It can also be connected to peripherals and used as a mini-NAS, wireless network bridge, or LTE Internet terminal.

Specifications

  • Compatible Module: Raspberry Pi Compute Module 4 series
  • Ethernet:
    • ETH1: Compute Module 4 Built-In
    • ETH2: PCI Express 1000BASE-T NIC
  • USB:
    • 1x USB-C: Power only
    • 1x USB-C: USB 2.0 High Speed
  • Storage Card: microSD slot (Only modules without eMMC supported)
  • GPIO: 26Pin GPIO compatible with Raspberry Pi
  • Power Supply: USB-C 5V/3A
  • Operating Temperature: 0℃~80℃
  • Dimension: 55x62mm/2.17×2.44”

The supporting case will be released soon. This product is under the status of Pre-order, will be shipped in mid-April.

AISLER launches Budget Manufacturing: the most economic electronics manufacturing choice on the planet

Posted on by mixos

AISLER, the electronics industry’s most affordable electronics manufacturing service announced today that it has launched a new offering called Budget 💰 Manufacturing: the most economic electronics manufacturing choice on the planet. Two years ago, AISLER pioneered high-quality local affordable manufacturing with its two business day Blitz ⚡ Manufacturing starting at just 12.00 Euro. For designs that don’t require two business days, AISLER will start today offer an eight-business day Budget 💰 Manufacturing category starting as low as 6.00 Euro.

AISLER’s strategy centers around three key components: simplicity, affordability and speed. Starting today, AISLER will double down on simplicity and affordability while offering a new choice for speed. Just as Blitz ⚡ manufacturing, Budget 💰 manufacturing is manufactured locally in a location near the engineer and comes with the same great specifications but with a much better price tag.

“We believe engineers know how to decide whether a project is urgent, or whether it can wait a couple of days extra. Offering the Budget 💰 Manufacturing Option allows them to iterate twice as often for the same amount of money. Which option would be right for the use case, that’s up to them to decide.”

says Felix Plitzko, CEO and Co-Founder of the company.

AISLER’s focus from the start was to create a simple manufacturing service for Electrical Engineers. This includes accepting native file formats from Altium Designer, KiCad, Eagle, Fusion360, Fritzing, Target3001!, SprintLayout and LibrePCB in addition to Gerber-Files generated from all other PCB Design Tools. A preview allows to directly control the import and double-check whether the project has been interpreted correctly. AISLER directly renders the manufacturing data and gives a guarantee that the online board rendering is an exact twin of the physical copy the customer receives, allowing the engineer to detect costly errors before the board is manufactured. Of course, the project is directly quoted and can be ordered instantly.

AISLER simplifies electronics manufacturing and serves as a convenient one-stop-shop for circuit boards, parts, stencils and assembly.

“Engineers should be in the driver seat at all times. Whether the project needs a Kit that is made of unassembled boards, parts and stencil, or a full-blown assembly. It should be the engineer’s choice, really. We will ensure that it reaches the engineer, at the right time and the right price-point desired for the project.”

Felix Plitzko elaborates.

Whenever speed wasn’t needed ordering Blitz ⚡ manufacturing would be a pure waste of precious resources. With today’s announcement, AISLER closes this gap, allowing engineers to choose whether to iterate twice as fast, or twice as much.

“Electrical Engineers build tomorrow’s products and lead Europe’s culture of innovation. By providing Budget 💰 Manufacturing with this even more affordable price tag, we believe we can help increase iteration cycles where budgets are tight for every Electrical Engineer”

Felix Plitzko states.

Budget 💰 Manufacturing is available starting today. To every customer world-wide.

About AISLER

AISLER empowers agile electronics development by simplifying and speeding up electronics manufacturing services. Through its streamlined online platform, AISLER offers a wide array of electronics manufacturing services ranging from manufacturing bare prototyping circuit boards, stencils and kitting parts to fully-fledged assembly services for small and large batches. An order can be placed in seconds, not hours after a design has been uploaded.

AISLER caters to anyone in need of solving the challenges of modern iterative electronics development.

Audio-Balanced Line Driver – Unbalanced Audio to Balanced Audio Converter

This audio-balanced line driver project enables to drive hundreds of feet in length of cables without becoming unstable The project is based on the THAT1646 chip, which is a new generation monolithic differential line driver that offers improved performance over conventional cross-coupled designs. Based on high performance, fully differential op-amp exhibits low noise and distortion, high slew rate, and wide output swing. Output is very stable when driving difficult loads, and output is short-circuit protected. The operating power supply is +/-15V DC, XLR, and RCA connector provided for output and input. D1, D2 are the Power LEDs, C7 decoupling capacitor, Ferrite Bead L1, L2, capacitor C6, C8, C9 take cares of RFI noise, Capacitors C5, and C10 acouple the common-mode feedback loop. This changes the loop operation from serving the common-mode output current at audio frequencies to serving the common-mode output voltage to 0 at DC. This results in much lower common-mode output offset voltage. D1 +VCC Power LED, D2 -VEE Power LED, CNX-J1 single-ended unbalanced audio input, CN3 Male XLR balanced audio output, CN1 power input, CN2 or J1-CNX audio input.

Features

  • Operating Power-Supply Nominal +/-15V DC (Dual) (Range +/-4V to +/-18V)
  • Input Impedance 5Kohms
  • Gain 6dB R-Load=100kOhms Per Output, 5.3 dB with 600 Ohms Load
  • Gain Error 0.02dB
  • DC Power Supply Rejection Ratio (PSSR) 107 dB
  • Output Common-Mode Rejection Ration (CMMR) 65dB
  • Output Signal Balance Ration 54dB
  • THD+N (Balanced) VO=10V, R-Load=600Ohms, 20Hz-5Khz 0.0007 %, 20Khz=0.002%
  • Output Noise Balanced 22Hz-20Khz -101dBu
  • Maximum Output Level VO-max 27.5dBu
  • Output Common-Mode Voltage Offset +/-3.5mV
  • Output Voltage Swing, Positive (Without Load) VCC-2.2V
  • Output Voltage Swing, Negative (Without Load) VEE+2.25V
  • PCB Dimensions 48.62  x 19.67 mm

THAT1646 uses patented OutSmarts technology. Outsmarts is a dual feedback-loop design that prevents the excessive ground currents typical of cross-coupled output stages (CCOS) when clipping into single-ended loads.   Chip has two individual negative-feedback loops to separately control the differential output voltage and common mode output currents, making the designs inherently more stable and less sensitive to component tolerances than common CCOSes. As a result, THAT’s topology prevents the loss of common-mode feedback that plagues common CCOS designs when clipping into single-ended loads. This avoids excessive ground currents that would otherwise upset power supplies and create additional distortion, even in adjacent channels.

Gain

The THT1646 provides +6 dB gain (factor of 2) between their inputs and differential outputs. This is appropriate since, with a balanced output, twice the voltage between the power supply rails is available at the output of the stage. The single-ended input of 1646 can accept signals that swing to nearly the power supply rails without distortion when driving into a differential (floating) load.

Schematic

Parts List

NO.QNTY.REFDESC.MANUFACTURERSUPPLIERSUPPLIER PART NO
11CN14 PIN MALE HEADER 2.54MM PITCHWURTHDIGIKEY732-5317-ND
21CN22 PIN MALE HEADER 2.54MM PITCHWURTHDIGIKEY732-5315-ND
31CN3XLR-MALE PCB MOUNTEDELECBEE.COMELECBEEB-016-2007
42C1,C310uF/25V SMD ELECTROLYTICPANASONICDIGIKEYPCE3795CT-ND
52C2,C40.1uF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
62C5,C1010uF/50V NON POLARNICHICONDIGIKEY493-16350-ND
72C6,C9100PF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
81C710uF/35V SMD SIZE 1206MURATA/YAGEODIGIKEY
91C8470pF/50V SMD SIZE 0805MURATA/YAGEODIGIKEY
101D1LEDOSRAMDIGIKEY475-1415-1-ND
111D2LEDOSRAMDIGIKEY475-1415-1-ND
121J1RCA JACKCUIDIGIKEYCP-1400-ND
132L1,L2FERRITE BEADWURTHDIGIKEY732-1620-1-ND
142R1,R21.5KMURATA/YAGEODIGIKEY
153R3,R5,R6OMITOMIT
164R4,R7,R8,R90EMURATA/YAGEODIGIKEY
171U1THAT1646THAT CORP.MOUSER887-1646P08-U

Connections

Gerber View

Photos

Video

THAT1646 Datasheet

WM1302 LoRaWAN Gateway Module (SPI) – US915, based on SX1302

Posted on by mixos

WM1302 module is a new generation of LoRaWAN gateway module in mini-PCIe form-factor based on Semtech® SX1302. It features extremely low power consumption, outstanding performance with CE, FCC, Telec certified.

WM1302 module is a new generation of LoRaWAN gateway module with mini-PCIe form-factor. Based on the Semtech® SX1302 baseband LoRaWAN® chip, WM1302 unlocks the greater potential capacity of long-range wireless transmission for gateway products. It features higher sensitivity, less power consumption, and lower operating temperature compared with the previous SX1301 and SX1308 LoRa® chip.

WM1302 LoRaWAN gateway module has SPI and USB versions on both US915 and EU868 frequency bands, enable you to have a wide-range of LoRaWAN frequency plans options to choose including EU868, US915, AS923, AS920, AU915, KR920, and IN865.

Features

  • Powered by Semtech® SX1302 baseband LoRa® chip, extremely low power consumption and high performance.
  • Mini-PCIe form factor with the standard 52-pin golden finger, easy to integrate with various gateway devices.
  • Ultra-low operating temperature, no additional heat dissipation needed, reducing the size of LoRaWAN gateway.
  • High sensitivity down to -139 dBm @SF12 with SX1250 TX/RX front-end; TX power up to 26 dBm @3.3V.
  • Certified with CE, FCC, and TELEC. Simplify the final product certification process.

WM1302 module is CE, FCC and Telec certified, which helps simplify the development and certification process of the LoRaWAN gateway devices.

WM1302 is designed for M2M and IoT applications and can be widely applied in LPWAN gateway supported scenarios. It would be a perfect choice for you to significantly reduce the technical difficulties and time-consumption when developing the LoRa gateway devices, including LoRaWAN gateway, miner hotspots, etc.

more information: https://www.seeedstudio.com/WM1302-LoRaWAN-Gateway-Module-SPI-US915-p-4890.html

DOGS104-A Series Compact Low-Power Flexible (4×10) Character LCD

Posted on by mixos

DISPLAY VISIONS’ DOGS104-A series compact low-power pin connected chip-on-glass character LCD

DISPLAY VISIONS EA’s DOGS104-A series character LCDs are available in an FSTN pos. transflective, STN neg. blue transmissive, and FSTN pos. white reflective version. These displays have a 2.54 mm pitch and can be soldered directly or plugged into socket strips. Therefore, cumbersome gluing procedures, the need for designing a special mounting device, and error-prone cable connections that may lose contact are no longer a concern.

This LCD family was designed for use in the German industry and will have an availability of 15+ years. The extremely efficient ratio of external dimensions [36 mm x 27.5 mm x 2.6 mm (or 4.6 mm including LED backlight)] to the active display area helps in designing very compact devices. Furthermore, its low-power use [single supply 3.3 V to 5.5 V (typically 250 µA)] makes it ideal for handheld applications.

The EA 9780-4USB development board and free Windows simulator are all users require to evaluate pin-connected chip-on-glass LCDs with and without backlight. Simply plug the 2.54 mm connector pins of the display into the socket strips of the development board. Proprietary hardware or software development is not required. Decisions can be made quickly at a minimum expense.

Resources

Features

  • High contrast LCD supertwist display
  • Optional led backlight units in different colors
  • 4×10 character with 2.6 mm switchable to 2×10 with 4.55 mm height
  • SSD1803A controller for SPI (2-/3-/4-wire) and I²C (2-wire) interface
  • Single power supply +3.3 V (typically 440 µA)
  • No additional voltages required
  • Operating temperature range -20°C through +70°C
  • Led backlight 3..45 mA at 3.3 V
  • No mounting required; simply solder into the PCB
  • 3 different character sets (Cyrillic, English-Japanese, and European) included in the same controller
  • 2 viewing direction possible (bottom and top view)
  • RoHS, CE, and REACH compliant

more information: https://www.lcd-module.de

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