AutoPCB

Sentence to Circuit Board

Type what you want to build. AI designs the circuit, selects real components, simulates, routes the board, and fabricates it locally. No schematic capture. No waiting.

> 48V MPPT solar charger with USB-C output

Generating requirements...
Searching 400,000+ parts from JLCPCB catalog
Extracting datasheet pin data for 12 components
Building netlist — 47 nets, 86 connections
Simulating DC operating point... PASS
Design review... PASS
Placing components via simulated annealing
Auto-routing 2-layer board... 100% routed
Board ready for fabrication.
Pipeline

Six Phases, Zero Manual Steps

Describe a circuit in plain English. AutoPCB handles requirements, part selection, datasheet extraction, simulation, validation, and layout automatically.

Phase 1
Requirements Generation
AI generates detailed functional requirements from your description: operating voltages, signal chains, simulation parameters. Everything an engineer would specify.
Phase 2
Component Selection
Searches 400,000+ real parts from JLCPCB/LCSC. Checks local inventory first. Selects gating components with decision-tree logic.
Phase 3
Passive & Support
Adds supporting passives: decoupling caps, biasing resistors, feedback dividers, pull-ups. Every required external component from the datasheet.
Phase 4
Datasheet Extraction
Reads full datasheets via LLM. Extracts pin data, absolute max ratings, thermal limits, application circuits. Real data, not approximations.
Phase 5
Simulation & Validation
DC circuit simulator with behavioral models. Structural checks, electrical parameters, polarity. Automatic repair loop, up to 3 iterations.
Phase 6
Layout & Routing
Simulated annealing placement. Two-layer auto-routing with 45-degree chamfers. Copper pours. Design rule checking. Production-ready output.
Capabilities

Built for Real Hardware

Not a toy. AutoPCB uses real manufacturer data, real simulation, and real fabrication processes.

400K+
Real parts in catalog
20+
Simulation models
2-layer
Auto-routed boards
100+
Designs completed
⚡
DC Circuit Simulator
Nodal analysis with behavioral models. MOSFETs, BJTs, op-amps, regulators, gate drivers, LEDs, MCUs with power modes.
🔎
Datasheet Intelligence
LLM reads full PDF datasheets. Extracts pin maps, absolute max, thermal data, application circuits, and required external components.
🔧
Auto-Repair Loop
If simulation or review finds issues, the design is fixed automatically. Up to three repair iterations until everything passes.
⚖
LLM Design Review
After simulation passes, an LLM reviews the circuit against all datasheet constraints. Catches missing caps, wrong values, protocol issues.
⚙
Simulated Annealing Placement
Optimal component placement on the board. Power-aware grouping. Minimizes trace lengths and thermal hotspots.
🔌
Advanced Auto-Router
Dijkstra-based pathfinding, not simple grid routing. 45-degree chamfers, copper pours, power-aware trace widths, DRC.
📊
Power Mode Sweeping
Analyze MCU power budgets across run, sleep, and standby modes. PWM simulation with duty cycle modeling.
🗃
Local Inventory
Prioritizes parts you already have on hand. Flags what you need to order. No wasted stock.
End to End

Design Files to Finished Board

AutoPCB doesn't stop at design files. It owns the entire fabrication pipeline. No overseas orders, no two-week lead times, no minimum quantities.

Step 1
CNC Isolation Routing
Cuts the board from raw copper clad. Precision traces milled directly on your bench.
Step 2
Solder Paste Dispensing
Precise paste deposition onto each pad. Automated from the design files.
Step 3
Pick and Place
Component positioning from local reels. Every part placed exactly where the layout specifies.
Step 4
Reflow Assembly
Oven locks everything down. One board or a hundred. On your bench. In minutes.
Who It's For

From Prototype to Production

Hardware Startups
Iterate daily, not monthly. Go from idea to tested board before your next standup. No MOQs, no lead times blocking your sprint.
Research Labs
One-off experiments without the overhead. Custom sensor boards, test fixtures, instrumentation. Designed and built the same day.
Makers & Engineers
Skip the schematic capture learning curve. Describe what you need, get a real board. Professional quality, personal scale.

From sentence to finished circuit board.

Designed, fabricated, and assembled. All local. All automated.

View on GitHub