Real parts. Real checks.
Real parts, never invented. Checks run by established EDA tools.
AI-powered PCB design.
Editable schematics, PCB layouts and manufacturing files, from a plain-language description.
Example project · Climate logger Rev A Illustration
Brief
Your requirements, and the assumptions PCBSurf made for you to confirm.
| ID | Requirement | Kind | From |
|---|---|---|---|
| R1 | Measure temperature and relative humidity | Must | You |
| R2 | Send readings over 2.4 GHz Wi-Fi | Must | You |
| R3 | Power from USB-C (5 V), USB only | Must | Your answer |
| R4 | Qwiic-compatible I²C connector for more sensors | Must | You |
| R5 | Status LED | Prefer | You |
| R6 | Overall size ≤ 40 × 25 mm, antenna included | Must | You |
| A1 | Two layers, 1.6 mm FR-4 | Assumed | PCBSurf |
| A2 | Program and power over the same USB-C port | Assumed | PCBSurf |
| A3 | Keep the sensor away from Wi-Fi module and regulator heat: slotted tongue, no copper plane beneath | Assumed | PCBSurf |
| A4 | Wi-Fi antenna extends past the board edge at a corner, with no copper or board beneath it | Assumed | PCBSurf |
Parts · 23 placements
Real parts with manufacturer part numbers. Supplier stock and price are checked when you generate.
| Ref | Qty | Part | Manufacturer | Package |
|---|---|---|---|---|
| U1 | 1 | ESP32-C3-MINI-1-N4X | Espressif | Module |
| U2 | 1 | USBLC6-2SC6 | STMicroelectronics | SOT-23-6 |
| U3 | 1 | AP2112K-3.3TRG1 | Diodes Incorporated | SOT-23-5 |
| U4 | 1 | SHT40-AD1B-R2 | Sensirion | DFN-4 1.5 × 1.5 mm |
| J1 | 1 | USB4105-GF-A | GCT | USB-C |
| J2 | 1 | SM04B-SRSS-TB(LF)(SN) | JST | SH 1.0 mm, 4-pin |
| SW1, SW2 | 2 | PTS810 SJM 250 SMTR LFS | C&K | 4.2 × 3.2 mm |
| D1 | 1 | LTST-C191KGKT | Lite-On | 0603 |
| R1, R2 | 2 | 5.1 kΩ 1 % | Any | 0402 |
| R3, R7, R8 | 3 | 10 kΩ 1 % | Any | 0402 |
| R4, R5 | 2 | 4.7 kΩ 1 % | Any | 0402 |
| R6 | 1 | 1 kΩ 1 % | Any | 0402 |
| C2, C4 | 2 | 1 µF 16 V X5R | Any | 0402 |
| C1, C3 | 2 | 10 µF 16 V X5R | Any | 0603 |
| C5, C6 | 2 | 100 nF 16 V X7R | Any | 0402 |
Checks
Checks run in EDA tools, and every result names its tool. This example is a drawing, so none have run.
Not checked automatically
Export
What you download: editable KiCad source, and the files a manufacturer asks for.
Editable sourceKiCad
FabricationGerber X2 · Excellon
AssemblyCSV · Gerber X2
How it works
01 · Describe
PCBSurf askedShould it also run from a battery? That changes the power circuit.
You answeredUSB only. → R3
Brief · 6 requirements · 4 assumptions
02 · Design
U1ESP32-C3-MINI-1-N4X
Espressif · Module
U4SHT40-AD1B-R2
Sensirion · DFN-4 1.5 × 1.5 mm
U3AP2112K-3.3TRG1
Diodes Incorporated · SOT-23-5
03 · Refine
Rev A · 40 × 25 mm · routedProposed change · 40 × 22 mm · not routed yetProposed change · 40 × 22 mm · routed, H1 removedProposed change · 40 × 24 mm · routed, H1 kept Rev B · 40 × 22 mm · routed, H1 removedRev B · 40 × 24 mm · routed, H1 kept
Lock what must not move
Ask for the change
Lock the connectors first, as you would before asking for a smaller board.
Decide the trade-off
Needs your decision
H1 no longer fits at 40 × 22 mm. With the USB-C connector locked in place, the corner no longer has room for the hole and its clearance.
U2, H2 re-placed · routes redrawn · J1, J2 unchanged
Accepted as Rev B.
Trade-offs come back to you as a question, and every change waits for your approval.
04 · Check & export
For every level
Plain-English reasons for every part, and what to check before you order.
Why is the sensor on its own tongue? To keep heat from skewing the reading.
Why does the antenna hang past the edge? Copper near it weakens the Wi-Fi.
Real part numbers, and every change a revision you can restore.
| Ref | Part | Maker |
|---|---|---|
| U1 | ESP32-C3-MINI-1-N4X | Espressif |
| U2 | USBLC6-2SC6 | STMicroelectronics |
| U3 | AP2112K-3.3TRG1 | Diodes Incorporated |
| U4 | SHT40-AD1B-R2 | Sensirion |
Net classes, design rules and locks hold on every AI change.
Net classes
Locks
J1, J2 · position and rotation
Exports
.kicad_pro · .kicad_sch · .kicad_pcb · Gerber X2 · Excellon · BOM · pick-and-place
USB pair. Side by side along the edge, with ground vias.
3.3 V feed. 0.6 mm wide, the widest power class.
Trust
Real parts, never invented. Checks run by established EDA tools.
Edit anything yourself. AI changes wait for your approval.
KiCad files any time, even after you cancel. Private, never used to train AI.
What you can build
USB-C macro keypad
12 V LED strip driver
Dual DC motor driver
4-channel sensor front-end
Hardware should be easier.
PCBSurf is for anyone who builds electronics: first-time makers, startup teams and professional engineers.
Start designing
Pricing
Editing by hand and exporting files never use a run.
Boards are made and priced by the manufacturer you send the files to.
FAQ
These answers describe PCBSurf as it's being built. See what exists today.
No. Describe what the board should do in your own words. PCBSurf asks about the things that change the design, such as how it's powered, and explains its choices in plain English. Have someone experienced review a board before you order it, as you would with any first design.
PCBSurf only uses real parts. Chips, connectors and switches come with a manufacturer part number and a datasheet; passives by value, rating and size. Symbols and footprints come from checked library data. If no suitable part exists for what you asked, PCBSurf tells you instead of making one up. Checking the parts list against the datasheets is still part of reviewing any design.
Yes. The schematic and PCB layout are editable: move and lock parts, change values, reroute tracks. When you then ask the AI for a change, it works around your edits and never moves anything you've locked. Its changes arrive as a proposal for you to review.
Your projects are private: only you and the people you invite can open them. We do not train AI models on your designs.
AI work such as generating a circuit or routing a board is metered, and PCBSurf shows what a run will use before it starts, so there are no surprise overages. Editing never needs an AI run. Manufacturing is paid to the manufacturer you choose.
Not today. You download the manufacturing files and order boards from the manufacturer you choose; most accept Gerber, drill, BOM and pick-and-place files. If that changes, this answer will say so.
Start with a sentence
Describe it. PCBSurf drafts the board, and you can edit every part of it.