dsp | electronics | arduino
Pico Programmable Audio Board (2025)
Audio development board for the Raspberry Pi PIco
A development board for working with audio, SD cards, hardware midi and sensors on the Raspberry Pi Pico.
Use this board to create interactive art projects, synthesizers, audio file players, props, USB audio interfaces, you name it.
Designed by Mads Kjeldgaard for hyaline.systems.
Features
- 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
- Hardware MIDI in and out.
- Compatible with all Pico-compatible boards, including Pico 1, PicoW and Pico 2.
- StemmaQT connector for easy i2c expansion.
- Power: Use external power (5V) or power from USB on Pico. Circuit will automatically switch between these two sources, depending on what’s available. Includes reverse polarity protection on power input.
- Optional: Hardware mute button may be connected directly to DAC.
- All remaining pins broken out with lots of ground and power pins to make external connections easy
- Reset button connected to RUN on the Pico to make it easy to restart the Pico.
- Self-documenting board: All pins and connections are written on the board itself.
- 4 x M3 mounting holes
Part of longterm project Hyaline Systems
Open source creative technology for art and music.
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: 1783089116265184000
CSS ID: jquery_jplayer_1783089116265184000
Container ID: jp_container_1783089116265184000
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: 1783089116265218000
CSS ID: jquery_jplayer_1783089116265218000
Container ID: jp_container_1783089116265218000
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: 1783089116265248000
CSS ID: jquery_jplayer_1783089116265248000
Container ID: jp_container_1783089116265248000
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: 1783089116265277000
CSS ID: jquery_jplayer_1783089116265277000
Container ID: jp_container_1783089116265277000
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: 1783089116265306000
CSS ID: jquery_jplayer_1783089116265306000
Container ID: jp_container_1783089116265306000
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: 1783089116265349000
CSS ID: jquery_jplayer_1783089116265349000
Container ID: jp_container_1783089116265349000
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: 1783089116265399000
CSS ID: jquery_jplayer_1783089116265399000
Container ID: jp_container_1783089116265399000
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: 1783089116265455000
CSS ID: jquery_jplayer_1783089116265455000
Container ID: jp_container_1783089116265455000
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: 1783089116265495000
CSS ID: jquery_jplayer_1783089116265495000
Container ID: jp_container_1783089116265495000
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: 1783089116265536000
CSS ID: jquery_jplayer_1783089116265536000
Container ID: jp_container_1783089116265536000
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: 1783089116265563000
CSS ID: jquery_jplayer_1783089116265563000
Container ID: jp_container_1783089116265563000
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: 1783089116265643000
CSS ID: jquery_jplayer_1783089116265643000
Container ID: jp_container_1783089116265643000
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: 1783089116265739000
CSS ID: jquery_jplayer_1783089116265739000
Container ID: jp_container_1783089116265739000