BiPoSeq
Firmware for Beebo (Poly Effects)
Adds a 16-step bipolar CV sequencer module, with internal-clock and external-trigger versions, to the Beebo and Hector module browser.
by Gary Kane

- Distribution
- Build from source yourself
- Requires stock
- 407 (the UI patcher was tested against the current digit_ui)
- License notes
- Per the README and the source header of the plugin. The surrounding fork of Poly Effects digit_ui has no LICENSE file; its README says code without its own notice is GPL.
- Source
- github.com https://github.com/PedalEffected/Beebo/tree/master/biposeq
- sequencer
- cv
- ui
- lv2
Description
BiPoSeq has sixteen steps that each hold a voltage from minus five to plus five volts, edited by dragging bars or typing a value on the keypad. The internal version runs from a BPM setting with play and back inputs, and the external version steps on trigger inputs; both appear under the CV generators in the module browser. The plugin is derived from the Poly Effects step sequencer plugins, and the repository is a fork of digit_ui with the BiPoSeq UI changes already applied. On Hector one unit of module output corresponds to five volts at the jack. The README says the module is not yet tested on a physical Beebo or Hector.
Install notes
Needs SSH access to the unit as the debian user. Copy the biposeq folder to the unit, run the install script with --check for a dry run, then without it, and reboot. The script remounts the read-only system layer, copies the prebuilt ARM64 plugin into the LV2 directory, patches the UI and backs up each changed UI file. An uninstall script restores them. Run the installer again after each Poly Effects firmware update. The plugin source builds with make.
Version history
| Version | Date | Notes |
|---|---|---|
| master @ cd9f38f | 2026-10-13 | No tagged releases; this is the latest commit. |