Arduino CLI Skill

Provide cross-platform arduino-cli workflows and command references.

Resources

• references/commands.md - board, core, library, compile, and upload commands
• references/serial-ports.md - OS-specific serial port discovery
• rules/common-pitfalls.md - common command mistakes and recovery guidance
• examples/README.md - runnable command sequences
• ../../docs/board-support/uno-r4-family.md - Uno R4 Minima and Uno R4 WiFi support notes

Workflow

1. Identify the user's platform and target board.
2. Open references/serial-ports.md if the task depends on port discovery.
3. Open references/commands.md for the exact command family you need.
4. Check rules/common-pitfalls.md before suggesting upload or compile fixes.
5. If the target is Uno R4 family and the problem touches WiFi, firmware bridge, or OTA-related setup, open ../../docs/board-support/uno-r4-family.md.
6. Prefer arduino-cli JSON output when the result will be parsed or reused.

Compatibility And Proof Boundary

Record arduino-cli version, the core/index version, FQBN, libraries, host OS, and port before changing commands. Check library architecture support and board package compatibility. A successful compile is build proof only; an accepted upload is upload proof and does not establish hardware or system success. For IDE, PlatformIO, or vendor-specific commands, route to the appropriate branch instead of silently translating them.

Quick Start

arduino-cli board list
arduino-cli core list
arduino-cli compile --fqbn arduino:avr:uno path/to/sketch
arduino-cli upload -p /dev/ttyACM0 --fqbn arduino:avr:uno path/to/sketch

Verification

• Confirm the fqbn matches the target board.
• Confirm the selected serial port exists before upload.
• Prefer command output over remembered defaults when troubleshooting.

See references/commands.md and references/serial-ports.md for detailed examples.

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.