Electronics Links

Learning & Reference

• GCSE Physics — Electricity
  Older but still-live introductory electricity lessons covering circuits, current, voltage, resistance, electromagnetism, and transformers.
• Siemens SCE — Learning & Training Documents
  Siemens' current educational collection for teaching and self-study. More than 100 learning documents, 40+ digital learning modules, and 160+ web-based trainings cover automation and industrial subjects including TIA Portal, PLCs, LOGO!, process control, CNC, IoT, AI, cloud, security, robotics, and related technologies.
• Siemens — Basics of Energy and Automation Guides
  A surviving collection of the excellent older Siemens educational material remembered from the STEP / STEP 2000 era. The archive brings together 18 Siemens books and guides covering electricity, motors and control, automation, and power distribution. These older lessons remain especially useful because they explain the underlying electrical ideas before moving into Siemens products.
• Siemens — Basics of Electricity
  A particularly good starting point from the older series: an 88-page introductory course covering atoms and electron theory, conductors and insulators, charge, current, voltage, resistance, Ohm's law, series and parallel circuits, power, magnetism, AC, frequency, inductance, capacitance, reactance, and RLC circuits.
• MIT OpenCourseWare — Electronics & Mathematics
• MIT OpenCourseWare
  MIT's free online collection of materials from more than 2,500 courses. Course pages can include lecture notes, videos, problem sets, exams, laboratory work, readings, and downloadable materials for independent study.
• MIT 6.002 — Circuits and Electronics
  An undergraduate introduction to electrical engineering built around lumped circuit models, basic circuit analysis, digital circuits, amplifiers, operational amplifiers, MOSFETs, energy-storage circuits, and the differential equations used to describe circuit behavior. Includes lecture material, labs, assignments, exams, and video lectures.
• MIT 18.01SC — Single Variable Calculus
  A self-study calculus course covering differentiation and integration of functions of one variable, followed by infinite series. This is the mathematical foundation behind rates of change, slopes, charge and current relationships, capacitor and inductor equations, and many later engineering topics.
• MIT 18.02SC — Multivariable Calculus
  Extends calculus to functions of several variables, including vectors and matrices, partial derivatives, multiple integrals, and vector calculus. These tools become important in fields, electromagnetic theory, physics, and more advanced engineering analysis.
• MIT 18.03SC — Differential Equations
  A self-study course focused on differential equations useful in science and engineering. Particularly relevant to electronics because RC, RL, RLC, oscillators, filters, transient response, resonance, and many control systems are naturally described by differential equations.
• MIT 18.06SC — Linear Algebra
  Professor Gilbert Strang's well-known course on matrices, systems of linear equations, vector spaces, eigenvalues, and related methods. Linear algebra becomes increasingly useful in circuit networks, systems analysis, signal processing, control, simulation, and computational engineering.
• Electronics-Tutorials.com
  Large electronics tutorial archive. The site itself notes that it is retained for historical purposes and is no longer actively updated.
• ePanorama — Electronics Software Links
  Long-running collection of electronics, circuit, and engineering software references.
• Elnec — IC Manufacturer Logos
  A useful current reference for identifying semiconductor manufacturers from device logos.
• Theremin World
  Long-running specialist reference and community devoted to theremin history, instruments, building, and playing.

Components, Kits & Suppliers

• Mouser
  Electronic components, datasheets, development tools, and engineering resources.
• DigiKey
  Electronic components, datasheets, development tools, and engineering resources.
• Jaycar Electronics
  Electronics parts, tools, kits, and hobby supplies.
• Delphi O.E.M. Co.
  Plastics and elastomers injection molding and moldmaking.

Electronics Publications & Industry News

• Circuits Assembly
  PCB assembly, manufacturing processes, test, inspection, and electronics production.
• Electropages
  Electronics news and new-component information.
• Electronic Products
  Electronic-component product news, design information, and new-device coverage for engineers and purchasers.
• Electronic Design
  The old elecdesign.com link has been updated to the publication's current site.
• EDN
  Engineering design articles, Design Ideas, products, and technical news.
• EE Times
  The old eet.com link has been replaced by the current EE Times site.
• Embedded
  Embedded hardware and software engineering news and technical material.
• Tech Briefs
  Engineering and technology coverage originating with NASA Tech Briefs.
• U.S. Tech
  Electronics manufacturing, production, component, and industry coverage.

PCB Layout & Electronic Design Software

• Free & Accessible Design Tools
• KiCad EDA
  One of the leading free, open-source PCB design systems. KiCad places no artificial board-size or layer-count limits on ordinary use and includes schematic capture, PCB layout, an integrated SPICE simulator, manufacturing-output tools, and a 3D board viewer.
• EasyEDA
  A browser-based PCB design environment that is approachable for beginners. It combines schematic capture and PCB layout with a large community component library and close integration with parts ordering and board manufacturing.
• LibrePCB
  A lightweight, modular, open-source EDA suite for schematic capture and PCB design. LibrePCB emphasizes clean library management, cross-platform use, and an interface intended to be easier to learn than many larger professional packages.
• Fritzing
  A popular electronics-design tool aimed especially at beginners, hobbyists, makers, and education. Its distinctive breadboard view lets a user lay out a project in a form resembling the physical prototype, then move between breadboard, schematic, and PCB views.
• Altium CircuitMaker
  A free design tool based on Altium technology and aimed at makers, students, hobbyists, and open-hardware designers. It provides access to professional-style schematic and PCB design features without requiring the full commercial Altium Designer package.
• Heavy-Duty Professional Suites
• Altium Designer
  A major professional PCB design suite used by engineering teams and businesses. It is known for advanced multilayer routing, high-speed design tools, design-rule management, 3D board visualization, and close integration with mechanical CAD and product-development workflows.
• Autodesk Fusion — Electronics Workspace
  Especially useful when a circuit board must fit inside a custom mechanical enclosure. Fusion combines schematic and PCB design with the same environment used for 3D mechanical modeling, helping electronics and enclosure design stay coordinated.
• Other Established PCB / EDA Systems
• Number One Systems — Easy-PC
  Established schematic-capture and PCB-layout software from Number One Systems.
• IB Friedrich — TARGET 3001!
  Integrated schematic, PCB, simulation, and 3D electronics-design system.
• VUTRAX Electronics CAD
  Long-running schematic and PCB-design system; especially interesting as a surviving example of earlier professional electronics CAD.
• McCAD Electronic Design Systems
  Electronic design software for schematic capture and PCB work.
• Siemens PADS
  Professional PCB design software descended from the long-running PADS / Mentor Graphics product line.
• Cadence OrCAD
  Current Cadence home for the OrCAD family of schematic-capture, simulation, and PCB design tools.
• ExpressPCB
  PCB-layout software paired with a board-manufacturing service, aimed at making small-board design and ordering straightforward.

Link to LearnTronics

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