16 open source boards using the PT2399
Real designs built with the PT2399, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
- schematic only · 102 parts
Eurorack-PT2399-Delay
DIYSynthMNL
102 partsNo license10 
Dolphins
apaleslimghost
127 × 128.5 mm171 parts2LMIT5
Dark Rabbit Chorus
PancakeLegend
50 × 100 mm84 parts2LGPL-3.02
HackableDelay
benjiaomodular
86.4 × 58.4 mm58 parts2LCC-BY-4.02
PICSimpleDigital
codeandrelax
75 × 78 mm127 parts2LMIT1
Dual PT2399 Digi Delay
ilya-n
148.8 × 152.9 mm202 parts2LNo license0
Effect pedal
Ahreo
104.8 × 97.8 mm85 parts2LNo license0
PT2399delay
kinoshita-lab
37 × 24.4 mm33 parts2LMIT3
Delay
50 × 100 mm65 parts2LGPL-3.02
PICSimpleDigital THT electrolytes
75 × 78 mm118 parts2LMIT1
Delay (Old)
50 × 100 mm65 parts2LGPL-3.02
PICPT2399 basd Digital Effect Pedal (Time Manipulator)
75 × 78 mm113 parts4LMIT1
DelayOdesSmd
oficinadesonido
24.1 × 107.2 mm52 parts2LGPL-3.03
E6Delay
kanengomibako
54 × 47 mm60 parts2LUnlicense11
Deep blue delay
bubbajfett
54.9 × 57.7 mm49 parts2LCC0-1.014
ReincarnationChorus RevB
54 × 47 mm58 parts2LUnlicense11
The PT2399 in open source designs
The gallery holds 16 open source boards using the PT2399 from 11 GitHub repositories; a typical one measures about 54.9 × 78 mm and carries around 75 components.
93% are two-layer designs, the rest use four layers or more, and 81% carry an open source license.
The most starred is Deep blue delay by bubbajfett.
Microcontrollers on boards using the PT2399
What boards using the PT2399 are built for
PT2399: common questions
Where can I find a PT2399 reference design?
Each of the 16 boards on this page is a real design using the PT2399. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the PT2399?
The TL072, TL074 and L7805 appear in the most repositories here.
Which microcontrollers do boards using the PT2399 use?
Most are built on PIC (3).
How big is a typical board using the PT2399?
The median is 54.9 × 78 mm, and 93% are two-layer designs.
What is the most popular open source board using the PT2399?
By GitHub stars, Deep blue delay by bubbajfett, with 14 stars.
Can I simulate one of these boards using the PT2399 before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.