Arduino

This skill is for end-to-end Arduino work that must survive contact with real hardware: board selection, wiring, firmware structure, PlatformIO, testing, debugging, and troubleshooting.

If the task is mainly about choosing sensors or dealing with noisy detection in robotics/domotica, also load sensors.

Workflow

1. Lock the target board, toolchain, and capability profile.

   • Prefer exact names: Arduino Uno, Uno R4 WiFi, Nano ESP32, ESP32 Dev Module, etc.
   • Lock the toolchain: Arduino IDE 2, Arduino CLI, PlatformIO, or Arduino Cloud.
   • If the target is unknown, state assumptions and choose the narrowest safe target.
   • Immediately note: board family, voltage domain, resource limits, reserved pins, wireless stack.

2. Plan hardware and wiring before code structure.

   • Separate inputs, outputs, buses, interrupts, and high-current loads.
   • Document pull-up or pull-down assumptions, current draw, and shared grounds.
   • Call out when motors, relays, LEDs, displays, or radio modules need external power, drivers, transistors, or level shifting.