⇝ KRONO⇜

multi-modal programmable clock generator

krono - eurorack multi-modal programmable clock generator

Features

  • 12 Clock OutputS divided into two groups (A/B)

  • 10 Operational Modes covering standard, mathematical, musical, probabilistic, and chaotic rhythms.

  • Weighted Tap Tempo & External Sync

  • State Persistence: Saves Tempo, Active Mode, and Swap State for each mode, retaining them across power cycles.

  • Calculation Swap: Inverts functions between groups via the MOD button or external gate.

  • Visual Feedback: the Status LED indicates the active mode; the Auxiliary LED signals state changes (tap, mode select, swap).

  • Fixed Base Clock Outputs: Outputs 1A and 1B always provide the unmodified main clock.

  • Hardware Platform: Based on CPU STM32F411.

  • Open Source: Firmware developed with PlatformIO (C/C++), customizable.

  • Programming: Via USB-C DFU.

  • “whatever” power connector – don’t mind the polarity, it’s protected eighter way.

Technical Specs

  • width 4HP

  • depth 30mm

  • 50mA +12V

  • 5mA -12V

KRONO is a 4HP programmable multi-mode clock and rhythm generator module featuring tap tempo, state persistence, CV group swap and 12 independent outputs.

Modes – firmware v1.0

  1. Ratios: Direct multiplications and divisions of the base tempo for proportional rhythmic ratios.

  2. Euclidean: Generates Euclidean rhythms by distributing K pulses over N steps.

  3. Musical: Applies common musical ratios (e.g., triplets, dotted notes, predefined swing divisions).

  4. Probabilistic: Outputs trigger based on defined probability thresholds for each output.

  5. Sequential: Generates clocks based on mathematical sequences (Fibonacci, prime numbers).

  6. Swing: Applies individual swing/shuffle levels per output, delaying even beats.

  7. Polyrhythm: Assigns independent X:Y ratios to outputs; output 6 can generate a logical sum.

  8. Logic: Applies logic operations (AND, OR, XOR, NAND, XNOR) between internal clocks or external inputs (if configured).

  9. Phasing: Generates pulses with configurable time offsets (phase shifts) relative to the main clock.

  10. Chaos: Creates unpredictable rhythmic patterns based on chaotic algorithms.

New modes will be added with upcoming firmware updates.

Next

ROSA ⇝ infinite morpher