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Open Hardware/Modding Leftovers

Submitted by Roy Schestowitz on Wednesday 12th of January 2022 10:54:45 PM Filed under
Hardware

  • Linux 5.17 Adds Support For "The First Usable, Low-Cost RISC-V Platform"

    In addition to the prompt support for Qualcomm's Snapdragon 8 Gen 1, another exciting milestone for the in-development Linux 5.17 kernel is introducing mainline support for the StarFive JH7100, which has been trying to make its debut as the first usable and low-cost RISC-V platform.

    The StarFive JH7100 SoC is powered by SiFive's U74 dual-core 64-bit RISC-V processor running at 1.5GHz while having 4K display support but no integrated 3D GPU at this point. The StarFive JH7100 was announced last year as a low-cost RISC-V SoC. The performance out of the SiFive U74 cores is reported to be in similar ball park to Arm Cortex-A55 cores.

  • Synth and Visualizer Combo has Retrocomputing Vibe

    [Love Hultén]’s latest piece of interactive art is the SYNTH#BOI, a super-clean build with something of the semi-cyberdeck, semi-vintage computing vibe to it. The device is a combination synthesizer and visualizer, with a 15-inch display, MIDI keyboard, and based on an Intel NUC i5 small form factor PC.

    There are not many details about the internal workings of the device, but the high quality of the build is very evident. Photos show a fantastic-looking enclosure with clean lines and sharp finish; it’s a reminder that careful measuring and attention to detail can be the difference between something that looks like a hack job, and something that looks like a finished product.

  • Digital Rain Animation Crammed Into Pi Pico | Hackaday

    With a new Matrix movie now in cinemas, we’ve all been reminded of those screensavers that were just the coolest thing ever when the original film dropped in 1999. [en0b] decided to recreate the classic “digital rain” effect on the Raspberry Pi Pico, using up all the little microcontroller’s storage in the process.

    Rather than rely on existing graphics libraries, [en0b] set about using a high-quality GIF for the animation. The original file was 8 MB, which was far too big to fit on the Pico. After some finagling in an image editor and with the help of a custom Python script, however, [en0b] managed to fit the 127-frame animation at 240 x 135 resolution into the 2 MB Flash onboard the chip. With the microcontroller hooked up to the 1.14″ IPS “Pico Display” from Pimoroni, the final looks great and faithfully recreates the aesthetic seen in the film.

  • Smoke Sensor with Arduino Uno: MQ-2 wiring, setup and code

    When you need to monitor a fire initialization, Smoke Sensor is the best way to detect the percentage of carbon monoxide (CO) in parts per million (PPM). The smoke sensor gives an analog voltage which can be monitored by Analog Pin of Arduino Uno

    In this tutorial, I’ll show you how to interface an MQ-2 Smoke sensor with Arduino Uno. Results of the smoke sensor are displayed over the serial monitor.

  • Rockchip RK3588S cost-optimized Cortex-A76/A55 processor adds CAN bus, drops PCIe 3.0, other peripherals

    Rockchip RK3588S is a cost-optimized version of the RK3588 octa-core Cortex-A76/A55 processor with fewer peripherals, and I’ve been told it’s been designed for tablets, but as we’ll see below, the processor will probably find its way into many other applications.

    We first saw RK3588S during the Rockchip Developer Event last December, but at the time we did not have any information, except it would be a lower-cost version. I’ve now received an RK3588S datasheet, so let’s have a look at the block diagram and specifications to find out what’s different.

»

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