soulbladermd / teensy_grovebox

A portable synth and music multi-tool made with Teensy 4.1

Teensy Grovebox

• An all-in-one music multi-tool in a 25-key MIDI keyboard form factor.
• Made with Teensy 4.1 and Teensy Audio Board.
• Demo video for the synth function.
• Demo video for the Sampler function.

Hardware Features

• 25-key MIDI keyboard with mechanical key switches.
• 4 encoder knobs and a joystick.
• 3.5 inch TFT touch screen.
• Built-in audio interface with stereo line input/output, and headphone output.
• Onboard speaker and microphone.
• 10+ hours of battery life.
• USB-C charging and data transfer.
• Supports sustain pedal.
• Exposed I2C and S/PDIF headers.
• ...

Software Features

• USB MIDI keyboard with pitchbend, mod wheel, and 4 assignable knobs.
• Wavetable synth mode to play SF2 soundfonts. (with Teensy SoundFont Decoder ...link)
• Polyphonic synth engine with 8 voices, each with 2 oscillators, 2 LFOs, 3 envelopes, and 1 filter.
• Sampler mode.
• Effects like delay, chorus, reverb... (under development).

Folders in this repo

There's a readme file in each folder with more details.

• Teensy_Grovebox_Hardware
  • Kicad files for schematic and PCB.
  • 3D files for the case.
• Teensy_Grovebox_CODE
  • Arduino code for the Teensy 4.1.
  • Uses PlatformIO.
• Joystick_Board
  • Kicad schematic and PCB files for the joystick board used in the Teensy Grovebox.