motor | electronics | arduino
Teensy Haptic Audio Player (2025)
Vibration motor controller and high quality DAC for the Teensy 4.0.

A PCB designed for audio and haptic projects with a Teensy 4.0.
Among other things, it can be used to play audio from the computer as a sound card when connected via USB or from audio files via the on board SD card reader. The audio will then be output both to a 3.5mm audio jack and a haptic driver that will make a vibration motor like this one vibrate in sync with the audio, kinda like in a gamepad, sex toy or phone.
Another usecase is simply as a high quality audio development platform.
The whole thing is open source and hackable and is designed to be used for many different scenarios.
Features
- Designed for the very powerful Teensy 4.0 board.
- Fully compatible with the Teensy Audio Library.
- High quality i2s stereo output DAC with 3.5mm line out jack: PCM5102A DAC – this DAC is widely compatible with all platforms and SDK’s, including Arduino and C.
- SD card reader
- NeoPixel for flashy RGB LED shenanigans.
- StemmaQT connector for easy i2c expansion.
- Optional: Hardware mute button may be connected directly to DAC.
- All unused pins broken out with lots of ground and power pins to make external connections easy
- Self-documenting board: All pins and connections are written on the board itself.
- CC-BY-NC-SA-4.0 license
Software
See software/examples for example code using Arduino.
Part of longterm project Hyaline Systems

Open source creative technology for art and music.
Part of longterm project Haptic Fields

A speculative artistic investigation of material vibrations in nature, biology, humanity and technology.
More projects:

Hyphal (2025)
Algorithmic music for a computer-controlled pipe organ, celebrating life.
A problem occurred with the audio player. Here is some debug info:
Title: Snippet of Hyphal (2025).
MP3: /audio/hyphal-snippet.mp3
ID: 1770976335325595000
CSS ID: jquery_jplayer_1770976335325595000
Container ID: jp_container_1770976335325595000

Life in the Quiet Zone (2025)
An audio essay about the so-called quiet zone in the Copenhagen S-train system.
A problem occurred with the audio player. Here is some debug info:
Title: Snippet from The Quiet Zone
MP3: /audio/music/The Quiet Zone - Snippet1.mp3
ID: 1770976335325640000
CSS ID: jquery_jplayer_1770976335325640000
Container ID: jp_container_1770976335325640000

Moans and Groans (2025)
The forest is a sex toy: Recreating the wind in the trees through a series of sound sculptures with vibrator motors.
A problem occurred with the audio player. Here is some debug info:
Title: Geophonic recording of a tree in the wind
MP3: /audio/RootRecordings-2025-08.mp3
ID: 1770976335325684000
CSS ID: jquery_jplayer_1770976335325684000
Container ID: jp_container_1770976335325684000

Empty Cloud (2025)
12 hours, 15 minutes and 7 seconds of minimalist background music.
A problem occurred with the audio player. Here is some debug info:
Title: Empty Cloud Part 8
MP3: /audio/music/emptycloudpart8.mp3
ID: 1770976335325726000
CSS ID: jquery_jplayer_1770976335325726000
Container ID: jp_container_1770976335325726000

Space In Between (2024)
Slow ambient piano looping with the window open and the outside world seeping in.
A problem occurred with the audio player. Here is some debug info:
Title: 15:15 PM (Excerpt)
MP3: /audio/music/1515pmexcerpt.mp3
ID: 1770976335325770000
CSS ID: jquery_jplayer_1770976335325770000
Container ID: jp_container_1770976335325770000

Internal Organs (2023)
A 4 channel interactive installation for virtual organs.

Musik for virtuelle orgler (2023)
A release of algorithmic organ music for virtual organs on SuperPang.
A problem occurred with the audio player. Here is some debug info:
Title: Har Mødt En (Met someone)
MP3: /audio/music/virtorgel.mp3
ID: 1770976335325831000
CSS ID: jquery_jplayer_1770976335325831000
Container ID: jp_container_1770976335325831000

Death Told So Clearly To Fuck Off (2022)
Ambisonic (3D audio) piece for speaker domes.
A problem occurred with the audio player. Here is some debug info:
Title: Binaural rendition of 'Death Told So Clearly To Fuck Off'
MP3: /audio/music/death_fuckoff_binaural.mp3
ID: 1770976335325874000
CSS ID: jquery_jplayer_1770976335325874000
Container ID: jp_container_1770976335325874000

Singularity: Music for a dance performance (2022)
Interactive sounds and music for solo dancer Külli Roosna.

Akkorder (2020)
Algorithmic music CD release on Ambitious Tapes.
A problem occurred with the audio player. Here is some debug info:
Title: Akkorder Track 7
MP3: /audio/music/akkordertrack7.mp3
ID: 1770976335325981000
CSS ID: jquery_jplayer_1770976335325981000
Container ID: jp_container_1770976335325981000

Computer Music Journal, Volume 44, Issue 4 - Space as instrument (MIT) (2020)
Feature in MIT's Computer Music Journal.

Hold Time (2020)
Algorithmic music release on SuperPang.
A problem occurred with the audio player. Here is some debug info:
Title: Track 2 from 'Hold Time'
MP3: /audio/music/hold2.mp3
ID: 1770976335326044000
CSS ID: jquery_jplayer_1770976335326044000
Container ID: jp_container_1770976335326044000

I Solens Flint 1000 Floder (2019)
Ambisonic (3D audio) piece for speaker domes, commissioned by NOTAM and Ultima Festival.
A problem occurred with the audio player. Here is some debug info:
Title: Binaural rendition of 'I Solens Flint 1000 Floder'
MP3: /audio/music/solens.mp3
ID: 1770976335326119000
CSS ID: jquery_jplayer_1770976335326119000
Container ID: jp_container_1770976335326119000

Hollow Body Timbals (2018)
Field recordings of cicadas. CD released by FLUF.
A problem occurred with the audio player. Here is some debug info:
Title: Track 1 from 'Hollow Body Timbals'
MP3: /audio/music/hollow1.mp3
ID: 1770976335326175000
CSS ID: jquery_jplayer_1770976335326175000
Container ID: jp_container_1770976335326175000

Else Marie Pade 'Samlede tekster' (2017)
A book collecting all texts written by the Danish composer Else Marie Pade.

Music for Power Supplies (2017)
Drones based on electromagnetic recordings of studio power supplies. Released by Co-Dependent.

Spatial remixes of classic electronic music (2019-2021)
Classic pieces remixed in ambisonics for speaker domes and sound diffusion systems.

Sværm: Båndmagasinet (The Lake) (2019)
Harmonic drone piece released as part of the Tape Magazine by The Lake/Resonans Recs.
A problem occurred with the audio player. Here is some debug info:
Title: Sværm
MP3: /audio/music/svaerm.mp3
ID: 1770976335326308000
CSS ID: jquery_jplayer_1770976335326308000
Container ID: jp_container_1770976335326308000

States of Emergency (2018)
Electroacoustic music, released by Conditional Records.
A problem occurred with the audio player. Here is some debug info:
Title: States Of Emergency track 1
MP3: /audio/music/statestrack1.mp3
ID: 1770976335326349000
CSS ID: jquery_jplayer_1770976335326349000
Container ID: jp_container_1770976335326349000

