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README.md

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    Daisyy

    A small synthesizer/effect/whatever utilizing the Daisy Seed DSP Board by Electrosmith. This is essentially a high powered Arduino with two audio inputs and two audio outputs, inputs for up to 12 knobs or faders and a ton of memory.

    This is how the unit could look like (artist rendering, blender files in the repo):

    Planned Features

    • 1.3" OLED Display (black and white) with 128×64 pixels

    • 8 Knobs (7 can be used in code, 1 is for input volume)

    • RGB-LED for display of input levels

    • MIDI in

    • Powered via USB

    • Optional: Mic Preamp (without Phantom power, needs external 12V power supply)

    Soldering instuctions can be found here

    Software

    The Daisy Seed is a microcontroller with audio capabilities. This means it can become many different things depending on the code uploaded. The Daisy Seed can be programmed using multiple toolchains1 – in the course we will hover mainly use the Arduino IDE which can be downloaded on arduino.cc. After setting up the toolchain (see here for instructions), the code can be uploaded using the Arduino IDE and a USB-cable.

    Arduino IDE Setup

    If you like you can follow Electrosmith's Video Instructions on how to setup the ardino IDE to work with daisy. The short list version is:

    1. Install Arduino IDE from arduino.cc
    2. Follow the instructions at sm32duino:
      1. In Arduino under Preferences > Additional Board Manager URLs add the following text: https://github.com/stm32duino/BoardManagerFiles/raw/main/package_stmicroelectronics_index.json (Note: If you already have other URLs there, you need to seperate them with a comma)
      2. Open the Board Manager in Arduino (one of the icons on the left) and install the board STM32 MCU based boards by STMicroelectronics
      3. Follow the extra step, download and install the STM32CubeProgrammer Software from here Mac: You will have to use the workaround described in the video Linux: Make sure the stm32cube binaries can be found in the PATH by the Arduino IDE

    Install DaisyDuino Library

    1. Click on the Library Manager icon in the left bar
    2. Search for DaisyDuino
    3. Click INSTALL

    Arduino IDE Settings

    NOTE: It can happen that these settings get lost if you update the STM32 board files

    Change the following settings in the Tool menu:

    Name Setting
    Board Generic STM32H7 Series
    Board part number Daisy Seed
    USB support CDC (generic 'Serial' supersede U(S)ART)
    U(S)ART support Enabled (Generic 'Serial')
    USB speed (if available) Low/Full Speed
    Upload method STM32CubeProgrammer (DFU)

    Testing the board

    1. Connect your Daisy Seed to your computer via USB. The red power LED should now glow
    2. Set the daisy to DFU/Programming mode by pressing the buttons in the following order:
      1. Press and HOLD the BOOT button
      2. Click the RESET button`
      3. Release the BOOT button
    3. In Arduino open the Blink-Example in File > Examples > 01.Basics > Blink
    4. Ensure on top next to the round buttons the board Generic STM32H7 Series is shown (if not follow the steps outlined above in the section Arduino IDE Settings)
    5. Click on the round Upload button (an arrow pointing to the right)
    6. After uploading the onboard LED of the Daisy Seed should blink (if not the Arduino IDE will show a red error in the area on bottom)

    If this works you can now check other examples (or the DaisyDuino-Examples in File > Examples > DaisyDuino)

    Schematic



    1. See Section programmable in on: https://www.electro-smith.com/daisy/daisy ↩