Black Friday 2020 International Deals and Coupons

Singles Day 2020 is now behind us, but just like every year, international Black Friday and Cyber Monday deals and coupons are coming, and even already launched over one week before the actual events. And CNX Software will link to promotions from Chinese online websites that offer such deals with Aliexpress, Banggood, GearBest, GeekBuying, and others. Aliexpress Black Friday Fest will start on November 23, 12:00 AM PT, and last till November 27, 11:59 PM PT with up to 70% discounts. But you can also browse the website to find discounts, and add products to your cart before ordering during the event. There will also be $20 and $40 coupons for orders over $40 and $100 respectively, but conditions are unclear at this time. Banggood’s Crazy Friday event takes place during an even longer period between November 2nd and December 6th. There are special sitewide coupons for PayPal payments with $7 off for $70+ orders, and $12 off for $110+ […]

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Box86 is an x86 Emulator for Raspberry Pi and other 32-bit Arm platforms

Last week, we wrote about Raspberry Pi 4 Vulkan project status and future plans, and one person commented they are currently trying to get dxvk to work Box86, and that CNX Software should write about the latter. Cool, but what does that mean? dxvk is an open-source Vulkan-based implementation of D3D9, D3D10, and D3D11 for Linux,  and Box86 is a Linux userspace x86 emulator that works on 32-bit Arm targets like the Raspberry Pi SBC. Nice, and I remember I ran x86 Linux and Windows on Raspberry Pi a few years ago using a closed-source commercial program called Exagear, but having an open-source solution is even better. That means 64-bit Arm is not supported at all, and Box86 can not even be built for Aarch64 targets. Since many x86 games require OpenGL, as opposed to OpenGL ES, Box86 works best in conjunction with gl4es. By installing Box86 on Raspberry Pi 4, or other Arm boards like many of the Rockchip […]

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8-MOSFET solid-state power driver works with Raspberry Pi, Arduino, ESP32 and other maker boards (Crowdfunding)

Using inexpensive relays to switch AC or DC loads work well in most cases, but those relays will be quickly damaged when faced with high DC voltages, fast switching times, or other endurance requirements for which MOSFET’s are better suited, and that’s why MOSFET power supplies are found in 3D printers. Sequent Microsystems has made a habit to provide specialized Raspberry Pi HAT with relays or terminals for resistance temperature detectors that are stackable to supports a larger number for I/O or sensors. The company is now back at it with the 8-MOSFET stackable, DIN-rail mountable board that works not only with Raspberry Pi SBC, but also popular Arduino, ESP32, and other maker boards. 8-MOSFET key features and specifications: Eight MOSFETs with status LEDs 4 optimized for high-current (HC) loads up to 10 A / 24 VDC 4 optimized for high-voltage (HV) loads up to 2 A / 240 VDC Pluggable connectors Host interface – I2C via 40-pin Raspberry Pi […]

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Rock Pi 4B or Raspberry Pi 4 based mini PC runs RISC OS Cloverleaf (Crowdfunding)

First released in 1987 by Acorn Computer Ltd, RISC OS was the first operating system designed to run on ARM processors, and specifically on the company’s Archimedes personal computer. I don’t think I had ever heard about the operating systems until it was ported to the Raspberry Pi SBC by RISC OS Open Ltd (aka ROOL) who manage the publication of RISC OS source code. But there’s also a separate project called RISC OS Cloverleaf which aims to further develop the open-source operating systems, and just launched a Kickstarter campaign to fund software development, and they also offer two mini PCs running RISC OS Cloverleaf with namely Cloverleaf Puma powered by a  Rock Pi 4B SBC, and Cloverleaf Kitten featuring a Raspberry Pi 4 board. Cloverleaf Puma / Kitten key features and specifications: SBC Cloverleaf Kitten – Raspberry Pi 4 with Broadcom BCM2711 SoC, 4GB DDR4 RAM Cloverleaf Puma – Rock Pi 4B with Rockchip RK3399 SoC, 4GB DDR4 RAM […]

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OPTIGA Trust-M evaluation kit for Raspberry Pi targets Connected Home over IP standard

Last December, we reported that Amazon, Apple, Google, and the Zigbee Alliance had partnered to create Project Connected Home over IP (CHIP) working group with the goal of developing a royalty-free, secure Smart Home standard to increase compatibility among products over WiFi, Ethernet, Bluetooth LE, Cellular, 802.15.4 and others community protocol. Infineon has now unveiled OPTIGA Trust-M evaluation kit for Raspberry Pi designed to experiment with Connect Home over IP standard and comprised of Infineon Shield2Go HAT/adapter board, and OPTIGA Trust-M Security Shield2Go board equipped with Infineon OPTIGA Trust-M “Common Criteria Certified EAL6+” security controller. The Shield2Go adapter just re-routes the 40-pin Raspberry Pi header I/Os to sockets compatible with Infineon boards and a prototyping area. So the most important part is OPTIGA Trust-M Shield2Go which supports the following: X.509 certificates Device authentication Cryptographic support ECC NIST curves up to P-521, Brainpool r1 curve up to 512 RSA up to 2048 AES key up to 256, HMAC up to SHA512, […]

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Raspberry Pi 4 Vulkan Project Status & Future Plans – Q4 2020

Igalia has been developing a new open-source Mesa driver for the Raspberry Pi 4 since December 2019 and announced the implementation of the classical triangle Vulkan demo last February. Four months after the announcement of the Vulkan effort for Raspberry Pi 4 (v3dv), they merged with Mesa upstream. This means Raspberry Pi 4’s v3dv Vulkan driver has become part of the official Mesa drivers. Thus, bringing several advantages, like easy to find as it is now available on the official Mesa repository. Bugs can now be filed on the official Mesa repository bug tracker. In June, they passed over 70,000 tests from the Khronos Conformance Test Suite for Vulkan 1.0 and had an implementation of a significant subset of the Vulkan 1.0 API. This does not mean that the driver is ready for production use as they have implemented the full Vulkan 1.0 API.  They are now passing over 100,000 tests in the Kronos Conformance Test Suite (CTS) and have implemented the full Vulkan […]

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Raspberry Pi 400 Keyboard PC Review and Benchmarks vs Raspberry Pi 4

Raspberry Pi 400 keyboard computer with Broadcom BCM2711C0 1.8 GHz processor has just launched, and we already published a teardown of the Raspberry Pi 400 hardware to check out the cooling solution and overall hardware design. In this review, we’ll mostly focus on Raspberry Pi 400 and Raspberry Pi 4 differences, since both devices mostly rely on the same chips. After checking the different features, we’ll run Thomas Kaiser’s “SBC Bench” script to test thermal cooling and benchmark both RPi hardware platforms. Raspberry Pi 400 vs Raspberry Pi 4 Model B Features Since under the hood, the two platforms are very similar, we’ll highlight the difference as shown in the table below courtesy of Cytron. Price is not shown in the table above, but Raspberry Pi 400 costs $70, while Raspberry Pi 4 with 4GB goes for $55. That’s $15 extra for a keyboard, case, and cooling solution, so the price is very attractive. Stock performance is a little higher […]

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Raspberry Pi 400 Teardown – Heat spreader and motherboard

The Raspberry Pi Foundation has just introduced the Raspberry Pi 400 keyboard computer with the guts of Raspberry Pi 4 SBC, 4GB RAM, and a 78-key keyboard. I got a sample courtesy of Cytron, so before we test the device in more detail, I decided to have a look at the internals with a teardown. Raspberry Pi 400 keyboard PC can easily and safely be opened with an old credit card or other hard cards – I used a card holding a SIM card – that you can swipe between the pink case and the white keyboard to pop out the keyboard. The keyboard is attached to the mainboard with a flat cable, so we can lift the black part of the connector to take it out, and this will reveal the large heat spreader (metal plate) that, as we’ll soon see, is the secret sauce to keep the computer perform smoothly at all conditions, and enables the higher 1.8 […]

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