[
    a <http://schema.org/SoftwareApplication>;
    <http://schema.org/applicationCategory> "Device Control";
    <http://schema.org/author> [
      a <http://schema.org/Person>;
      <http://schema.org/name> "klenov1900-lang"
    ];
    <http://schema.org/datePublished> "2026-10-19";
    <http://schema.org/description> "Матричная клавиатура 4x4 через PCF8574 (I2C). Без Wire.h.";
    <http://schema.org/downloadUrl> "https://downloads.arduino.cc/libraries/github.com/klenov1900-lang/PCFKeypad_EASY-1.0.0.zip";
    <http://schema.org/fileSize> 17;
    <http://schema.org/license> "https://spdx.org/licenses/MIT";
    <http://schema.org/name> "PCFKeypad_EASY";
    <http://schema.org/operatingSystem> "Arduino";
    <http://schema.org/softwareVersion> "1.0.0";
    <http://schema.org/url> "https://github.com/klenov1900-lang/PCFKeypad_EASY"
  ] .