[
    a <http://schema.org/SoftwareApplication>;
    <http://schema.org/applicationCategory> "Device Control";
    <http://schema.org/author> [
      a <http://schema.org/Person>;
      <http://schema.org/name> "Sergey Nikolaevich"
    ];
    <http://schema.org/datePublished> "2026-09-11"^^<http://schema.org/Date>;
    <http://schema.org/description> "Keypad 4x4 driver for PCF8574 I2C expander.";
    <http://schema.org/downloadUrl> <https://downloads.arduino.cc/libraries/github.com/klenov1900-lang/PCFKeypad-1.0.0.zip>;
    <http://schema.org/fileSize> 16;
    <http://schema.org/license> <https://spdx.org/licenses/MIT>;
    <http://schema.org/name> "PCFKeypad";
    <http://schema.org/operatingSystem> "Arduino";
    <http://schema.org/softwareVersion> "1.0.0";
    <http://schema.org/url> <https://github.com/klenov1900-lang/PCFKeypad>
  ] .