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sloop-fm1, image 1 from its README
Firmware

sloop-fm1

Loud81/100

Snoop37: SLOOP by isod89 for the M-Vave SMK-37 (fork; branch snoop37). SMK-37 support offered upstream in #112.

sloop-fm1 is custom firmware for the M-VAVE SMK-37 Pro and M-VAVE SMK-37 Elite, by @genkigenki. Open source under GPL-3.0, latest release v2.7.2 (October 2026), 19 stars on GitHub.

forM-VAVE SMK-37 Pro,M-VAVE SMK-37 Elite·by@genkigenki

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Download v2.7.2

snoop37-2.7.2.fwsc· 636 KB· +3 files

GPL-3.0· genkigenki/sloop-fm1·genkigenki.github.io/smk37/·downloads come from the creator’s GitHub releases

119
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119 commits and 3 releases in the last year
Activity · last 12 months
3 releases
  1. v2.7.2Snoop37 2.7.2Latest4 files

    Snoop37 2.7.2: PAD LIGHT (HOME menu > LIGHTS, fourth row, K8; K4 with KNOB LAYOUT = SMK): the pads at 100 % (as before), 75, 50 or 25 %. The dim states stay visible at every level, off stays off, and the setting is kept over power-off. Nothing else changes; settings from 2.7.1 are kept.

    Install: https://genkigenki.github.io/smk37/

  2. v2.7.0Snoop37 2.7.04 files

    Snoop37 2.7.0 on SLOOP 2.7: the sound on both of the chip's cores, KNOB ACCEL (PLAY K8), USB RATE (AUDIO), 2ND CORE (SYSTEM) and the rest of SLOOP 2.7. The SMK-37 settings live in their own store object; settings from 2.6.x are taken over. Turning the volume knob shows MASTER and its level (#1 on the old Snoop37 repository).

    Install: https://genkigenki.github.io/smk37/

  3. v2.6.1Snoop37 2.6.13 files

    About screen without the repository link; the SMK-37 hardware support now matches the upstream PR #112. Install: https://genkigenki.github.io/smk37/