Updated with every release

What's new on CircuitBase

Every change you can notice on the site, newest first: new pages and features, improvements and fixes in the catalogue and the schematic editor.

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October 2026

    • Catalogue

    AMS1117 input range

    • FixedThe AMS1117-3.3 now shows its input range as 4.75–15 V (15 V is the datasheet's absolute maximum) and appears again under the 5 V filter in the component catalogue. Open →
    • Catalogue

    Each component names its datasheet

    • ImprovedEvery component page now says which manufacturer's datasheet its figures come from: publisher, document number, revision and date, with a link to the PDF. Open →
    • Catalogue

    Two more reviewed components

    • NewLM7805 5 V regulator: pinout, limits from the TI datasheet, heatsink calculation, when capacitors are needed and the protection diode. Open →
    • NewCH340G USB to UART bridge: pinout, how to wire V3 for 5 V or 3.3 V, the 12 MHz crystal, supply limits and USB wiring rules. Open →
    • ImprovedComponent parameter tables now show minimum and maximum values next to the typical one. Open →
    • Catalogue

    First reviewed components

    • NewAMS1117-3.3 regulator: pinout, limits from the AMS datasheet, the output capacitor, why the tab is VOUT and the 10 mA minimum load. Open →
    • NewNE555 timer: pinout, limits from the TI datasheet, RESET levels, the recommended 100 kHz maximum and decoupling. Open →
    • Site
    • Catalogue
    • Editor

    About page, feedback and an open data licence

    • NewA new About page: who builds CircuitBase, how a page is made and reviewed, and how to use the data. Open →
    • NewEvery board, connector, component and schematic page now has “Report a problem” and “Confirm” buttons that open a public form with the page already filled in.
    • NewA contact address for anyone without a GitHub account: [email protected]. Open →
    • NewPages show how many people confirmed them on real hardware, once their confirmations are accepted.
    • NewCatalogue data and texts are available under CC BY 4.0, and the machine-readable files state the licence.
    • NewThis changelog.
    • ImprovedThe Web CAD link opens the editor directly, and the CircuitBase logo in the editor leads back to the site. Open →
    • Editor
    • Site

    Share schematics by link

    • NewShare a schematic as a link: the circuit travels inside the link, nothing is uploaded. Copy it or send it to Telegram, X, Facebook, Reddit, LinkedIn, WhatsApp or by email. Open →
    • NewA page that presents the online schematic editor, with a short video, its features and answers to common questions. Open →
    • FixedPage addresses now open directly without a trailing slash, and every page has a complete title and description.
    • Site
    • Catalogue

    A clearer home page

    • ImprovedThe home page shows board and connector pinouts, recommended entries and answers to common questions. Open →
    • FixedCatalogue cards line up evenly and their previews stay inside the card.
    • Catalogue
    • Site

    Filters in the catalogues

    • NewFilter boards and connectors by several properties at once; on phones the filters open in a drawer. Open →
    • NewThe home page opens with an interactive pinout you can explore pin by pin. Open →

September 2026

    • Editor

    More symbols in the editor

    • NewNew symbols in the editor's library: potentiometer, transformer, PNP transistor, P-channel MOSFET, op-amps, Schottky and Zener diodes, 78xx and 79xx voltage regulators, a 74AUC1G14 logic gate, and input, output and power ports. Open →
    • Catalogue
    • Site

    Connector pinouts

    • NewSix interface connector pinouts, checked against their primary sources. Open →
    • ImprovedThe home page is built around one search across all catalogues. Open →
    • ImprovedFaster pages: self-hosted fonts and smaller preview images.
    • Editor
    • Catalogue

    One look across the site and the editor

    • ImprovedThe schematic editor uses the site's theme and fonts. Open →
    • FixedBetter contrast for accent buttons and editor warnings in the dark theme.
    • FixedPinout pages on phones: the closed inspector no longer covers the page, and warning titles are translated.
    • Catalogue
    • Site

    Reviewed board pinouts in six languages

    • NewThe first reviewed set of eight development board pinouts, each with its cited sources. Open →
    • NewThe site is available in English, Ukrainian, Spanish, Portuguese, Turkish and Polish.
    • Catalogue

    Board catalogue

    • NewA board catalogue with grid and list views, live search and a preview of every board. Open →
    • Catalogue

    Redesigned pinout pages

    • ImprovedPinout pages with a responsive board drawing, a pin inspector and quick jumps between sections.
    • Site
    • Editor

    The first version

    • NewThe first version of CircuitBase: interactive pinout pages and the schematic editor in the browser.

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