Google Antigravity

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Gemini 4 Argon, Google's newest model, designs a printed circuit board from a single sentence, inside Adom Hydrogen.

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This is Adom Hydrogen, running on a remote office PC.

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We installed Google's Antigravity extension into Hydrogen's editor, and after one reload its side bar appeared.

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Clicking Continue with Google brought up Hydrogen's own browser picker, then Google's sign-in.

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Our new team account needed a single phone check.

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Then Antigravity greeted us with Gemini 4 Argon, Google's newest frontier model.

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Next, we hand Argon the buck converter prompt.

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Here is the whole prompt: make a twelve to five volt buck converter with the TPS54202, use adom-aiflow to guide you, and use KiCad.

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With no other hints, Gemini 4 Argon found the adom-aiflow skill on its own, then read the intake, circuit, sourcing and layout guides.

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It wrote a design brief and a requirements file, and started an aiflow run.

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Then the AI Flow timeline opened by itself in Hydrogen's right pane: intake done, design rules next.

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For the next hour, Argon worked through the design on its own.

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It wrote its own buck calculations and a four hundred line simulation, chose the parts, wrote the bill of materials, and generated the schematic and netlist.

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It asked a few times for permission to run commands, and we reminded it once to leave a colleague's open KiCad boards alone.

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Then its board opened in KiCad: a fresh project, placed and routed, ten nets and zero unrouted connections.

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Once KiCad was free, Argon reopened its board through kicad-bridge and let aiflow run the checks.

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The dashboard raced through routing, heatsink vias, copper pours, rounded corners, current, thermal, fields and silkscreen, then toured the finished board in KiCad's 3D viewer, with simple placeholder parts.

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Two and a half hours after the prompt, aiflow delivered: zero DRC errors, zero unconnected nets, and Gerbers, bill of materials and pick and place files, ready for the fab.

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The result: a DRC-clean twelve to five volt buck converter, two and a half hours from prompt to finished board, ready for the fab.