https://github.com/mxmxmx/temps_utile-

teensy 3.2 trigger generator
https://github.com/mxmxmx/temps_utile-

eurorack

Last synced: 3 months ago
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teensy 3.2 trigger generator

• Host: GitHub
• URL: https://github.com/mxmxmx/temps_utile-
• Owner: mxmxmx
• License: other
• Created: 2014-09-25T21:05:43.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2021-08-31T10:04:36.000Z (almost 3 years ago)
• Last Synced: 2024-01-18T13:43:40.532Z (5 months ago)
• Topics: eurorack
• Language: C++
• Homepage:
• Size: 4.19 MB
• Stars: 143
• Watchers: 22
• Forks: 50
• Open Issues: 10
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

Lists

• awesome-synth - mxmxmx/temps_utile- - 6x clock generator eurorack module (Modular)

README

        
temps_utile-

============

# 6 x clock generator.

![](https://c1.staticflickr.com/1/628/20400765240_149a3ea220_b.jpg)

... a fairly simple breakout board for teensy 3.1/3.2, focused on **clock sequencing** 

(the name may suggest as much ... it was stolen from M. **[Louis Lapicque](https://en.wikipedia.org/wiki/Louis_Lapicque)** (see: idem, 1907: Sur l'excitation par décharge de condensateurs; détermination directe de la durée et de la quantité utiles. _Comptes Rendus Soc. Biol._ (Paris) 62, 701-704).

### hardware basics, in brief:

- **teensy 3.1/3.2** @ 120MHz, w/ 128x64 OLED

- trigger-to-output **latency** < 100us.

- **2 clock inputs** (> 100k input impedance; threshold ~ 2.5V)

- **4 CV inputs** (100k input impedance, -/+ 5V, assignable to (almost) any parameter)

- **6 clock outputs** (5 digital, **1 DAC** (12 bit): 10V (GPIO), -/+ 5V (DAC))

- two encoders w/ switches; 2 tactile buttons.

- 14HP, ~ 25 mm Depth

### firmware: 

- **7 modes, selectable per channel:** 

  - trigger sequencer/sequence editor

  - clock division/multiplication

  - LFSR

  - random w/ threshold

  - euclidian

  - logic (AND, OR, XOR, NAND, NOR, XNOR)

  - burst

  - DAC (channel #4 only): random, binary, lfsr ("Turing"), logistic, sequencer/arpeggiator

### build guide: [see here](https://github.com/mxmxmx/temps_utile-/wiki/build-it)