PCB Design Software (EDA Tools)

A practical guide to choosing an EDA (Electronic Design Automation) tool: what each one costs, its strengths and weaknesses, which ones offer free student licenses, and roughly how long they take to learn.

Every tool follows the same flow — schematic capture → PCB layout → manufacturing outputs (Gerbers, BOM, pick-and-place). The fundamentals transfer between tools; the software mostly changes the UI and the ecosystem around you.

TL;DR for ACLAB

• Learning + most lab projects → KiCad — free, cross-platform, genuinely powerful.
• Coursework simulation → Proteus — already used in the Microcontrollers course.
• Industry-style workflow → Altium (free student license via school email) or Cadence Allegro/OrCAD.

How to choose

• Cost / licensing — free vs. subscription vs. per-seat perpetual.
• Ecosystem — library quality, community, tutorials, part availability.
• Target workflow — what your team or future employer actually uses.
• Board complexity — layer count, high-speed/SI, RF, HDI.
• Platform — Windows-only vs. cross-platform (Linux/macOS).

Quick comparison

Tool	License	Price (approx.)	Platform	Best for
KiCad	Open source (GPL)	Free	Win / mac / Linux	Almost everything
LibrePCB	Open source	Free	Win / mac / Linux	Beginners, simple boards
EasyEDA	Freemium (web)	Free / Pro paid	Web	Quick boards, JLCPCB/LCSC
Autodesk Eagle → Fusion	Commercial	Free for students	Win / mac	Hobby → mid-range
Altium Designer	Commercial	~US$3–4k+/yr	Windows	Industry standard
Cadence OrCAD / Allegro	Commercial	$$$ (≫$10k)	Windows	High-end / high-speed
Siemens PADS / Xpedition	Commercial	$$$	Windows	Enterprise

note

Prices change often and depend on edition/region — always confirm on the vendor's site. Open-source tools are free for any use, including commercial.

Free & open-source

KiCad (recommended)

• Pros: free and unlimited seats; complete suite (schematic, layout, push-and-shove router, 3D viewer, SPICE); cross-platform; huge community and library; ideal for teaching and reproducible open hardware.
• Cons: library/footprint management has a learning curve; advanced high-speed length-tuning is less polished than Altium; fewer built-in vendor integrations (closing fast).
• Price: Free.

KiCad is production-grade, not a "toy"

Real companies ship complex boards in KiCad. Antmicro open-sources advanced designs (FPGA, multi-gigabit, system-on-module carriers) built entirely in KiCad — browse their Open Hardware Portal. "Free" does not mean "limited."

LibrePCB

• Pros: clean, simple, great first tool; cross-platform; unified library system.
• Cons: fewer advanced features; smaller ecosystem than KiCad.
• Price: Free.

Freemium / hobbyist

EasyEDA

• Pros: runs in the browser, near-zero setup; tight link to LCSC parts and JLCPCB fab/assembly; fast for small boards.
• Cons: cloud-centric; Pro features are paid; less suited to large/complex designs.
• Price: Free (Std); Pro has free and paid tiers.

Autodesk Eagle (now Fusion Electronics)

• Pros: mature, lots of legacy tutorials; now integrated with mechanical CAD in Fusion.
• Cons: standalone Eagle is being retired into Fusion; subscription for full use.
• Price: Free education license with a school email; otherwise part of a Fusion subscription.

Professional / commercial

Altium Designer

• Pros: polished UX; excellent high-speed routing and interactive length tuning; strong library + data management via Altium 365; de-facto industry standard.
• Cons: expensive; Windows-only.
• Price: subscription ≈ US$3–4k+/yr; perpetual seats cost far more.

Free for students

• Altium Education — free 1-year, renewable license with a verified student email.
• CircuitMaker — free, community-oriented Altium tool (projects are public).
• Altium 365 Viewer — free, web-based, for viewing/reviewing without a license.

Cadence OrCAD / Allegro

• Pros: top-tier signal/power integrity and constraint management; used for the most complex, high-speed industrial boards.
• Cons: very expensive; steep learning curve; licensing is enterprise/university-program based.
• Price: $$$ — typically well over US$10k per seat.

You can still open the files for free

The Allegro FREE Physical Viewer (free download from Cadence) opens and inspects Allegro boards without a license — handy for design reviews and learning from existing layouts.

Siemens PADS / Xpedition

• Pros: scalable from PADS (mid-range) to Xpedition (enterprise high-speed/HDI).
• Cons: cost and complexity aimed at companies, not individuals.
• Price: $$$ — quote-based.

Student & free licenses (with a school email)

Tool	How to get it
Altium Education	Free 1-year (renewable) — verify with student email
Autodesk Fusion / Eagle	Free education license — sign up with school email
DipTrace	Free non-commercial / student edition
Cadence / Siemens	Via university programs — ask a faculty member, not self-serve
KiCad · LibrePCB · EasyEDA (Std)	Free for everyone — no license needed

Free viewers (inspect a design without buying)

• Allegro FREE Physical Viewer — Cadence boards.
• Altium 365 Viewer / Altium Designer Viewer — Altium projects, in the browser.
• KiCad — opens its own files and imports Eagle/Altium designs.
• Gerber viewers — most fabs (e.g. JLCPCB, OSH Park) provide a free online viewer to check manufacturing output.

Learning curve

• Basics are quick. A simple 2-layer board (schematic → layout → Gerbers) can be learned in a few days.
• Embedded engineers usually know the basics — reading schematics, simple layouts, decoupling, connectors — even if PCB design isn't their specialty.
• Mastery takes longer — high-speed/signal integrity, impedance control, RF, HDI and EMC are a months-to-years investment.
• Fundamentals beat the tool — good schematics, grounding and DFM transfer everywhere. Learn one tool well; switching is mostly relearning the UI.

First board? Start here

Install KiCad, follow the official getting-started, and lay out a small breakout for an MCU you already know (e.g. ESP32 or STM32 — see Embedded Firmware). Keep the DFM checklist handy before you order.

References

• KiCad documentation — official guides and tutorials.
• Antmicro Open Hardware Portal — production open-source designs in KiCad.
• Altium Education — free student license.
• Manufacturer DFM guides — e.g. JLCPCB, OSH Park — for real-world fabrication limits.