Gemini for PCB design

Gemini handles datasheets and images well, which helps at the front of a PCB project. It still cannot produce a routed, manufacturable board.

What Gemini does well

• +Gemini is genuinely useful for picking parts: describe what the circuit must do and it will suggest a regulator, a microcontroller or a sensor family worth considering.
• +Its multimodal input is a real advantage for hardware. It can read a datasheet PDF or a pinout image and extract package dimensions and pin names, which saves manual transcription.
• +It can explain a topology, sanity-check a power budget, or talk you through why a decoupling capacitor belongs close to a supply pin.
• +It can draft a rough netlist in text form, which is a reasonable starting point for a design you intend to verify yourself.

What it cannot do, and why

• −Gemini has no geometry engine. It cannot place components on a board with real dimensions, or produce copper that respects clearance.
• −It cannot route a multi-layer board. Routing is a search problem over physical space with hard constraints, not a text-generation problem.
• −It cannot run a design rule check. Without one there is no way to know whether the result is manufacturable.
• −It cannot output fabrication files. Gerber, Excellon drill and pick-and-place data are exact formats that a fab will reject if they are approximated.

The split that actually works

Gemini's strength for hardware is reading: give it a datasheet PDF or a photo of a pinout and it will pull out pin numbers and package dimensions. Someone still has to turn those numbers into a land pattern, a placement and routed copper, and none of that is reading.

In PCBEditor the reading and choosing stay with a language model, and the geometry goes to a router and rule engine built for it. Footprints come from verified libraries rather than from a model's reading of a drawing, and every board is checked before you export it.