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Arduino and iOS

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Comments

  • GravitasGravitas

    @u0421793 said:

    @Gravitas said:

    @u0421793 said:
    The thing about the NTS-1 and I was looking again the other day to see how far things might have come is that the hardware modifications are a big jump in knowledge up from just owning one

    Software, forget it – programming is impossible

    For a coder I don’t think it’s actually that difficult.
    For the layperson definitely.

    But hardware is achievable, except there’s no useful tutorial or entry-level documentation about how to for example make a full control panel of pots or encoders so that I’m not forever jumping into a completely alien value every time I move from eg VCO to VCF and move the encoder a tiny bit – that should be easy but we need to be told how

    Do you have dRambo?
    If so try this

    https://patchstorage.com/korg-nts-1-preset-utility/

    Even though the NTS-1 doesn’t save presets you can use
    a third party app to control it using cc messages that’s what I do.
    There was a recent release “MMM” a free app that can send cc messages which you could use as well.
    Anything that sends cc messages.
    Look up NTS-1 Midi implementation and you’ll get the complete list.
    The other cool thing about using cc messages is that you can transfer all
    of the editing to the iPad and/or a midi controller.

    I want to add extra actual knobs that the main board can read – like they’ve done with some of the demo arduino-type projects

    Isn’t there a free project on GitHub in regards to adding knobs and stuff?
    I’ve seen the demos and Korg mentions on their website that some of them are available on GitHub.

    (btw I’ve got the NTS-1 midi implementation chart somewhere – it’s impressively comprehensive)

    Yeah, I know that’s why I created the dRambo NTS-1 preset.
    The patch has all of the cc messages except Sysex stuff.
    I’ve left it open ended in regards to adding “functions” such as external LFO’s and similar
    so that other users can simply use it as a template for whatever they need to do.

  • audiblevideoaudiblevideo

    @Gravitas the “new” axolotl board is so far a one man show like the original but a different guy, and yes it’s supposedly faster. There’s a thread on the axolotl forum with the deets.

  • AlmostAnonymousAlmostAnonymous
    edited May 2023

    @Gravitas i'm all about the teensy myself. couldn't recommend them enough.

    also this if you havent seen it....funny cause i was JUST playing in it....:
    http://www.pjrc.com/teensy/gui/index.html

    (https://www.pjrc.com/teensy/td_libs_Audio.html)

  • GravitasGravitas

    @audiblevideo said:
    @Gravitas the “new” axolotl board is so far a one man show like the original but a different guy, and yes it’s supposedly faster. There’s a thread on the axolotl forum with the deets.

    The Zrna Akso is 40x faster than the original.
    I don't know about the speed of the new Axoltol Core.
    I'll have a look for sure.

  • rs2000rs2000

    @rheslip said:
    When you want to try some serious DSP take a look at the Teensy 4 and 4.1. I wrote a test sketch to see what it could do. Poly synth with 4 antialiased oscillators, a 4 pole moog type filter, Adsr env gen and a VCA per voice and kept adding voices - It finally ran out of cpu at 16 voices. I think I had a reverb on the mixed voices as well. You can add up to 16mbytes of expansion ram on the bottom of the 4.1 for long delays etc.

    Teensy 4 is a beast!

    @Carnbot said:
    Yes Teensy 4.1 is very good, am running a headless Dirtywave M8c tracker/synth on mine and it sounds great.

    What resolution is its DAC? And is it stereo?
    Thanks.

  • GravitasGravitas

    @AlmostAnonymous said:
    @Gravitas i'm all about the teensy myself. couldn't recommend them enough.

    Nice.
    I'll definitely go for the Teensy for sure.
    At the moment I need to get myself up to speed on Arduino's first,
    at the very least having an understanding of the Arduino language.

    also this if you havent seen it....funny cause i was JUST playing in it....:
    http://www.pjrc.com/teensy/gui/index.html

    (https://www.pjrc.com/teensy/td_libs_Audio.html)

    Very cool.

  • rs2000rs2000
    edited May 2023

    There's the ESP32 Audio Kit, containing the ES8388 codec (in and out with up to 96k and 24bits), at a rather low price.
    Not that the ESP32 was a dedicated audio DSP but there's quite a collection of audio projects online (including github), including full blown synths.

    My personal choice atm for a DIY synth would rather be a Raspberry Pico or Zero plus a DAC board like the ES8388 or the iQ-Audio Codec Zero.

    My choice for a DSP module to build oscillators, filters, EQs, compressors and the like (basically stuff that doesn't require much buffer memory) would be a board with the ADAU1701 like the TineSine TSA1701:
    https://www.tinysineaudio.com/index.php?route=product/product&product_id=183&search=tsa1701
    Again, you'd need an old Windows laptop to run the modular editor from Analog Devices but programming doesn't get much easier than that. It's really fun, and the TSA board has 4 trim pots on board already that can be used to adjust any parameter in your custom patch.

  • GravitasGravitas

    @rs2000 said:
    There's the ESP32 Audio Kit, containing the ES8388 codec (in and out with up to 96k and 24bits), at a rather low price.
    Not that the ESP32 was a dedicated audio DSP but there's quite a collection of audio projects online (including github), including full blown synths.

    My personal choice atm for a DIY synth would rather be a Raspberry Pico or Zero plus a DAC board like the ES8388 or the iQ-Audio Codec Zero.

    My choice for a DSP module to build oscillators, filters, EQs, compressors and the like (basically stuff that doesn't require much buffer memory) would be a board with the ADAU1701 like the TineSine TSA1701:
    https://www.tinysineaudio.com/index.php?route=product/product&product_id=183&search=tsa1701
    Again, you'd need an old Windows laptop to run the modular editor from Analog Devices but programming doesn't get much easier than that. It's really fun, and the TSA board has 4 trim pots on board already that can be used to adjust any parameter in your custom patch.

    Wow, thanks for this.

    Personally speaking I have a long way to go before I get into the DSP side of things.
    I'm starting of raw basic with CV voltages but as always I will dive in the deep end.

    I'm about to get some Arduino clones to play around with and to learn how to code
    or at least a facsimile of coding
    I anticipate a lot of copy and pasting. ;)

  • audiblevideoaudiblevideo

    @Gravitas

    I anticipate a lot of copy and pasting. ;)

    Maybe you could ChatGPT it and let us all know how it goes :)

  • GravitasGravitas

    @audiblevideo said:
    @Gravitas

    I anticipate a lot of copy and pasting. ;)

    Maybe you could ChatGPT it and let us all know how it goes :)

    I don't do ChatGPT.
    When I learn something I learn it properly.

  • GravitasGravitas

    @audiblevideo

    For example have a read here.

    https://schollz.com/raspberrypi/monotron/

    In this instance they are using a Raspberry Pi and an MCP 4725 DAC.
    The DAC is also compatible with the Arduino Uno.

    To get a CV voltage compatible with Eurorack out from an Arduino Uno
    you would need to physically make low pass filters per output
    which can be tedious if you're not into soldering.
    Using a DAC makes such things easier.

    How does this relate to iOS?
    Going back to the original question that I had asked which was
    can we program Arduino from an idevice? and the answer is we can't at the moment.

  • u0421793u0421793
    edited May 2023

    If you want to leap up to the ground floor, the next big thing which is about to happen soon in a bigger way than it currently is will be RISC-V, if you’re not risk averse

    At the moment there’s the wide smattering of options mentioned above, and they all have good points but the RISC-V is probably going to prove to be very powerful and very cheap as adoption becomes more widely available – ie, a very broad fan-out of board options with tempting stuff on-board

    What I’m saying is don’t buy a big bunch of multiple boards, just get them one at a time, by the time you need another a better one will be released, guaranteed

    This is the story of my embedded experience – I’ve tended to buy a few boards at each stage, and I still have a couple of unopened Arduino Duelminilove boards which are super-obsolete now, and so on – every time I buy too many (ie more than one) and then a better option appears before I’ve used any of the ones I’ve already bought

  • mojozartmojozart

    Speaking of Raspberry Pico with DAC, check out the Pico ADK (audio development kit)

    https://github.com/DatanoiseTV/PicoADK-Hardware

    Floyd Steinberg posted some demos to YouTube a few months ago.

  • audiblevideoaudiblevideo

    The Pico ADK is 30ish dollars and is programmable using VULT from a web browser so @Gravitas you can now program a “raspberry pi” from your iPad

  • GravitasGravitas

    @mojozart said:
    Speaking of Raspberry Pico with DAC, check out the Pico ADK (audio development kit)

    https://github.com/DatanoiseTV/PicoADK-Hardware

    Floyd Steinberg posted some demos to YouTube a few months ago.

    @audiblevideo said:
    The Pico ADK is 30ish dollars and is programmable using VULT from a web browser so @Gravitas you can now program a “raspberry pi” from your iPad

    As soon as I finish the Arduino project I'll start on this.
    In between now and then I'll also design up an enclosure or eurorack module for it.

    Thank you.

  • PapaBPoppinPapaBPoppin
    edited August 24

    It's been a year for this thread and I'm dipping my toes into Arduino

    Anything new on using an iPad-centric Arduino programming? Or workaround method? [Arduino Nano ESP32 if specifics matter]

    (Only desktop is Wife's work computer. Limited access, but can be used when free... Hoping for maybe a desktop for the initial setup but iOS for bricking it testing and general bullshittery)

  • PapaBPoppinPapaBPoppin
    edited August 24

    And one more- if I want to take a single USBc input, split midi channels and output to two separate USBC outs (1 in, 2 out) - could I use a USBC hub (found one with 4 ports and a 5th for power)? Or do I need to get an expansion board with another USB port?

    (I'm assuming they both act similar by each just adding additional ports... But this is my first foray and if Under Siege 2: Dark Territories taught me one thing, "Assumptions are the mother of all f*ck-ups")

  • PapaBPoppinPapaBPoppin
    edited August 24

    [eh can't figure out how to delete a post so ignore this one]

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