Bela Pepper

A Bela-based programmable Eurorack module with pots, buttons, LEDs and audio/control connections.

Revision-specific Eurorack DIY kit · Sources reviewed 11 September 2026

CAIBI assessment

A substantive programmable Eurorack build for someone prepared for component soldering and modular-audio integration. Buying the full kit reduces sourcing ambiguity, but revision and platform compatibility still matter.

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Cost and commitment

The full kit and PCB-only listings cover very different scopes. The full kit source includes Bela hardware; case, patch leads, regional delivery and tax may be additional. No complete UK/US delivered comparison is verified.

Lead and build time

The manufacturer describes an experienced builder’s afternoon for assembly. This is a source estimate, not CAIBI measurement, and excludes sourcing, unfamiliar setup and debugging.

Parts and fabrication

Revision-matched PCB, faceplates and eight 100k potentiometers
Jacks, buttons, LEDs, passives, headers and regulator from the revision BOM
Compatible Bela/BeagleBone stack; the full DIY kit listing includes a Bela Starter Kit
Suitable modular case/power and patch connections as specified by the build route

Use the creator PCB and faceplate design for the exact revision. The current guide covers rev2 full kits after April 2022. Some photos show earlier resistor values; the current text and revision BOM take precedence.

The linked source BOM and files control exact quantities, dimensions and revision. This summary is not a replacement fabrication file.

Assembly and test route

Follow the creator’s detailed instructions at each stage. The sequence below identifies the decisions and checks that connect them.

Choose full kit or PCB-only route and check the contents against the revision BOM. Bela Mini and CTAG are not supported by the documented Pepper route.
Follow the current component-placement and soldering sequence, checking values against the written BOM rather than older photographs.
Align pots, jacks, LEDs and faceplate before final soldering so mechanical tolerances do not stress the board.
Install the compatible Bela stack and follow the documented power and signal connections. Check polarity and continuity before power.
Load the baseline example and test each control and audio/CV path within documented limits before developing your own patch.

Where AI helps

AI can explain Pure Data or code patches and help organise BOM checks. Solder quality, polarity, connector alignment and audio/CV limits remain builder responsibilities.

UK and US purchasing

These are specific sourcing routes, not a verified complete basket. Check exact variants, stock, shipping destination, tax and delivery before purchasing.

Region	Part or kit route	Scope
UK	BOM-linked Thonk jacks ↗	Linked item only. Delivered total and lead time unverified.
UK	BOM-linked Thonk potentiometers ↗	Linked item only. Delivered total and lead time unverified.
UK / US	Manufacturer full kit; confirm destination and delivered total ↗	Linked item only. Delivered total and lead time unverified.

Benchmark this project

Use the Bela Pepper prompt. Compare what different models deliver, then add what happened when you tried it.

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CAIBI adaptation · Prompt 1.0 · Project source

Prompt for Bela Pepper

CAIBI project benchmark: Bela Pepper
Prompt version 1.0

Help me build Bela Pepper using the existing creator project at https://github.com/BelaPlatform/bela-pepper. This is a CAIBI benchmark adaptation of the project build brief, not a claim about how the creator used AI.

Project context:
- A Bela-based programmable Eurorack module with pots, buttons, LEDs and audio/control connections.
- Build context: Revision-matched PCB, faceplates and eight 100k potentiometers; Jacks, buttons, LEDs, passives, headers and regulator from the revision BOM; Compatible Bela/BeagleBone stack; the full DIY kit listing includes a Bela Starter Kit; Suitable modular case/power and patch connections as specified by the build route.
- Fabrication scope: Use the creator PCB and faceplate design for the exact revision. The current guide covers rev2 full kits after April 2022. Some photos show earlier resistor values; the current text and revision BOM take precedence.
- AI role: AI can explain Pure Data or code patches and help organise BOM checks. Solder quality, polarity, connector alignment and audio/CV limits remain builder responsibilities.
- Known limitation: Previous-generation Bela compatibility is documented; Bela Gem compatibility has not been established here. No physical validation or complete delivered cost.

Read the source first. Use its published design, files, dimensions and parts as the baseline; do not redesign it unless a missing detail requires a clearly labelled proposal. If you cannot access a source or verify a revision, say so.

Provide one practical build package:
1. Design and files: explain the source design, link the original editable files, and identify missing files or modifications.
2. Parts and fabrication: give quantities, exact variants and compatibility, plus a cutting or printing list where applicable. Preserve source dimensions; flag anything unconfirmed.
3. UK and US purchasing: direct product links, checked dates, stock, pack sizes, taxes, delivery and regional costs. Mark unverifiable details as unknown; do not invent links, prices or availability.
4. Assembly: an ordered guide covering fabrication, fitting, wiring or software as applicable, setup, checks and troubleshooting.
5. Cost and time: separate parts, fabrication, delivery, hands-on time and machine time, with assumptions and exclusions.
6. Function and ease: a test plan for the project's stated purpose, likely difficulties, required skills and any corrections or limitations.

Keep source facts, your proposals and items needing physical verification distinct. An estimate is not a measured build result. Do not claim to have built or tested hardware. Include failed attempts and omissions. If a section does not apply, say why.

Use the source as accessed during this run and record its revision or access date. The prompt is fixed; the linked source can change.

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Benchmark results 0

No reviewed results yet for Bela Pepper. Add the first result →

Source evidence and limits

SOURCE: linked creator documentation and product descriptions.

CAIBI: the desk assessment above, based on those documents. Previous-generation Bela compatibility is documented; Bela Gem compatibility has not been established here. No physical validation or complete delivered cost.

BUILDERS: no first-hand build result is claimed by this assessment.

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