Agent skill

arduino-code-generator

Generate Arduino/embedded C++ code snippets and patterns on demand for UNO/ESP32/RP2040. Use when users request Arduino code for sensors, actuators, communication protocols, state machines, non-blocking timers, data logging, or hardware abstraction. Generates production-ready code with proper memory management, timing patterns, and board-specific optimization. Supports DHT22, BME280, buttons, I2C/SPI, EEPROM, SD cards, WiFi, and common peripherals.

View SKILL.md on GitHub Repository
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Install this agent skill to your Project

npx add-skill https://github.com/wedsamuel1230/arduino-skills/tree/main/skills/arduino-code-generator

SKILL.md

Arduino Code Generator

Generate production-quality Arduino code snippets for sensors, actuators, communication, and embedded patterns.

Quick Start

Browse example sketches:

bash
# See 9 production-ready examples in examples/ folder
ls examples/
# config-example.ino, filtering-example.ino, buttons-example.ino,
# i2c-example.ino, csv-example.ino, scheduler-example.ino,
# state-machine-example.ino, hardware-detection-example.ino,
# data-logging-example.ino

List available patterns:

bash
uv run --no-project scripts/generate_snippet.py --list

Generate code for specific pattern and board:

bash
uv run --no-project scripts/generate_snippet.py --pattern i2c --board esp32
uv run --no-project scripts/generate_snippet.py --pattern buttons --board uno --output button.ino

Interactive mode:

bash
uv run --no-project scripts/generate_snippet.py --interactive

Resources

  • examples/ - 9 production-ready example sketches (one per pattern category)
  • examples/README.md - Detailed documentation for each example with wiring diagrams
  • scripts/generate_snippet.py - CLI tool for code generation with 9 pattern templates
  • scripts/verify_patterns.ps1 - Compile examples for UNO/ESP32/RP2040 (PowerShell)
  • scripts/verify_patterns.sh - Compile examples for UNO/ESP32/RP2040 (bash)
  • assets/workflow.mmd - Mermaid diagram of code generation workflow

Supported Patterns

Hardware Abstraction

  • Multi-board config.h with conditional compilation
  • Pin definitions for UNO/ESP32/RP2040
  • Memory budget tracking

See patterns-config.md | Example: config-example.ino

Sensor Reading & Filtering

  • ADC noise reduction (moving average, median, Kalman)
  • DHT22, BME280, analog sensors
  • Data validation and calibration

See patterns-filtering.md | Example: filtering-example.ino

Input Handling

  • Software button debouncing
  • Edge detection (PRESSED/RELEASED/LONG_PRESS)
  • Multi-button management

See patterns-buttons.md | Example: buttons-example.ino

Communication

  • I2C device scanning and diagnostics
  • SPI configuration
  • UART/Serial protocols
  • CSV data output

See patterns-i2c.md and patterns-csv.md | Examples: i2c-example.ino, csv-example.ino

Timing & Concurrency

  • Non-blocking millis() patterns
  • Task scheduling without delay()
  • Priority-based schedulers
  • State machines

See patterns-scheduler.md and patterns-state-machine.md | Examples: scheduler-example.ino, state-machine-example.ino

Hardware Detection

  • Auto-detect boards (UNO/ESP32/RP2040)
  • SRAM usage monitoring
  • Sensor fallback strategies
  • Adaptive configuration

See patterns-hardware-detection.md | Example: hardware-detection-example.ino

Data Persistence

  • EEPROM with CRC validation
  • SD card FAT32 logging
  • Wear leveling for EEPROM
  • Buffered writes

See patterns-data-logging.md | Example: data-logging-example.ino

Code Generation Workflow

  • Identify Pattern Type - Analyze user request to determine core pattern category
  • Read Reference Documentation - Consult pattern-specific reference files for implementation details
  • Generate Code - Create production-ready code following quality standards
  • Provide Instructions - Include wiring diagrams and usage guidance
  • Mention Integration - Suggest combinations with other patterns when relevant

Quality Standards & Rules

  • Quality Standards - Compilation, timing, memory safety, and error handling requirements
  • Board Optimization - UNO, ESP32, and RP2040 specific optimizations and features
  • Common Pitfalls - Critical mistakes to avoid in Arduino development

Code Output Template

  • Code Template - Standardized structure for generated Arduino sketches

Resources

  • examples/ - 9 production-ready example sketches (one per pattern category)
  • examples/README.md - Detailed documentation for each example with wiring diagrams
  • scripts/generate_snippet.py - CLI tool for code generation with 9 pattern templates
  • assets/workflow.mmd - Mermaid diagram of code generation workflow
  • workflow/ - Step-by-step code generation process
  • rules/ - Quality standards and board-specific optimizations
  • templates/ - Code output templates and structure guidelines
  • references/ - Detailed pattern documentation and API references
  • references/README.md - Reference structure and formatting guide

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