Quick Firmware/PCB Q&A

This is a fast, no-fluff call for a single well-defined problem — a firmware bug you're stuck on, a PCB design decision, a protocol choice (I2C vs SPI vs CAN), a sensor selection question, or "is this approach even right." Come with your question ready; I'll give you a direct answer, not a lecture. Best for developers, hobbyists, or founders who need a quick unblock, not a full audit.