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wedsamuel1230wedsamuel1230/embedded-engineering-skills/skills/board-selection/SKILL.md

board-selection

Skill28 starsChanged 29 days agoMITView on GitHub

Use when choosing or replacing an Arduino Uno, Uno R4, ESP32, ESP32-S3, Raspberry Pi Pico, Pico W, or another embedded board from project requirements. Compare exact board constraints, toolchains, libraries, power, memory, peripherals, recovery, and lifecycle fit before implementation.

1 other project uses a version of this.

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The file

We split this skill into the rules it gives an agent

5 rules. About 0 are common, 2 are distinctive, and 3 are very specific to this project.

  • ≈0

    Common · estimate

    Many files like this have a rule of this kind.

  • ≈2

    Distinctive · estimate

    This author's own choices. Worth a look.

  • 3

    Very specific

    Tied to their project's names, files or tools. Probably skip.

  • Common
  • Distinctive
  • Very specific
  1. Very specific:

    Use board-support when the user has named a board and needs its exact profile, capabilities, pin hazards, source status, or framework …

    line 16
  2. Very specific:

    Read ../../references/boards/README.md and use ../board-support/SKILL.md for the relevant exact profile.

    line 29
  3. Distinctive:

    Do not present a board-family fact as a board-revision guarantee.

    line 51
  4. Very specific:

    Every chosen value has a primary source or is marked to verify.

    line 67
  5. Distinctive:

    Use the shared Arduino skill contract: state assumptions, required tools and versions, implementation steps, tests/evidence by proof stage, …

    line 73

≈ “Common” is an estimate: at least 1 in 5 of the 350,495 skill files we read have a rule of the same kind, not the same words. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.

Keep what fits and drop the rest. Your version, ready for your agents.
Files
SKILL.md

Board Selection

Choose a concrete board target from requirements rather than a marketing family name. This skill produces a decision record that downstream skills can consume.

Boundary With Board Support

Use board-support when the user has named a board and needs its exact profile, capabilities, pin hazards, source status, or framework compatibility. Use this skill when the user is choosing, replacing, or comparing boards against project requirements. Consume the board-support profile instead of repeating or guessing its facts.

Intake

Capture required voltage and rails, inputs/outputs, PWM/ADC/timers, buses and protocols, memory/flash/PSRAM, radio/USB, timing, power source and peak load, physical constraints, production quantity, toolchain, library constraints, security/update needs, and recovery access.

Read ../../references/boards/README.md and use ../board-support/SKILL.md for the relevant exact profile. If the board is not covered, use the vendor product page, MCU/module datasheet, board schematic, and selected framework variant source. Label inferred values.

Process

  1. Turn requirements into hard constraints and preferences.
  2. Eliminate candidates that fail voltage, pin direction, peripheral, memory, power, or recovery constraints.
  3. Compare remaining boards across exact SKU, framework/core, toolchain, library architecture, upload path, security/update support, availability, and maintenance horizon.
  4. Record the selected board, rejected alternatives, reasons, open risks, and the exact build identifier/FQBN/environment.
  5. Hand the board profile to pin-assignment, wiring-safety-check, library-selection, memory-budgeting, and hardware-tdd as applicable.

Output

Return a compact table with requirement, constraint, candidate result, source, and verification status, followed by the decision and open risks. Do not present a board-family fact as a board-revision guarantee.

Anti-rationalization

ShortcutResponse
"ESP32" is precise enough.Ask for module suffix, DevKit revision, flash/PSRAM, and USB use.
"The board has enough memory."Separate nominal memory, application memory, heap/stack, filesystem, and OTA partitions.
"USB power will run it."Check rail voltage, regulator headroom, startup peaks, and external loads.
"Any Arduino library will work."Check architecture, framework, version, API, and dependency compatibility.
"It compiles, so it is the right board."Keep electrical, hardware, system, and deployment proof open.

Verification

  • The exact board/revision, MCU/module, framework, toolchain, and version are recorded.
  • Every chosen value has a primary source or is marked to verify.
  • A compile-only or dry-run path exists for the selected target.
  • Rejected alternatives and unresolved risks remain visible.

Shared output contract

Use the shared Arduino skill contract: state assumptions, required tools and versions, implementation steps, tests/evidence by proof stage, known limitations, and recovery/security notes.

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