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Software: MuseScore 3.4, arduino-copilot and LibreOffice 6.4 RC3

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  • MuseScore 3.4 Release

    Today we are pleased to announce another significant update, MuseScore 3.4. In addition to dozens of bug fixes, it introduces UX improvements when working with score elements and telemetry.

  • Music Notation Software MuseScore 3.4 Released!

    Right-click on the Appimage, then go to Properties -> Permissions, check the box ‘Allow executing file as program’. Finally run the Appimage to launch MuseScore 3.4 and enjoy!

    MuseScore also available as Snap (runs in sandbox), which can be installed directly from Ubuntu Software, though it’s still v3.3.4 at the moment.

    Also the flathub repository contains MuseScore flatpak package....

  • announcing arduino-copilot

    arduino-copilot, released today, makes it easy to use Haskell to program an Arduino. It's a FRP style system, and uses the Copilot DSL to generate embedded C code.

    [...]

    Copilot is quite an impressive embedding of C in Haskell. It was developed for NASA by Galois and is intended for safety-critical applications. So it's neat to be able to repurpose it into hobbyist microcontrollers. (I do hope to get more type safety added to Copilot though, currently it seems rather easy to confuse eg miles with kilometers when using it.)

    I'm not the first person to use Copilot to program an Arduino. Anthony Cowley showed how to do it in Abstractions for the Functional Roboticist back in 2013. But he had to write a skeleton of C code around the C generated by Copilot. Amoung other features, arduino-copilot automates generating that C skeleton. So you don't need to remember to enable GPIO pin 13 for output in the setup function; arduino-copilot sees you're using the LED and does that for you.

    frp-arduino was a big inspiration too, especially how easy it makes it to generate an Arduino sketch withough writing any C. The "=:" operator in copilot-arduino is copied from it. But ftp-arduino contains its own DSL, which seems less capable than Copilot. And when I looked at using frp-arduino for some real world sensing and control, it didn't seem to be possible to integrate it with existing Arduino libraries written in C. While I've not done that with arduino-copilot yet, I did design it so it should be reasonably easy to integrate it with any Arduino library.

  • LibreOffice 6.4 RC3 is available

    LibreOffice 6.4 RC3 is available for downloading now. There are builds for all main OS for 64 bit. There is a 32 bit build for Windows also. These builds are only for testing.

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