{
  "@context": "http://schema.org/",
  "@type": "SoftwareApplication",
  "name": "PCFKeypad",
  "description": "Keypad 4x4 driver for PCF8574 I2C expander.",
  "url": "https://github.com/klenov1900-lang/PCFKeypad",
  "author": {
    "@type": "Person",
    "name": "Sergey Nikolaevich"
  },
  "applicationCategory": "Device Control",
  "operatingSystem": "Arduino",
  "downloadUrl": "https://downloads.arduino.cc/libraries/github.com/klenov1900-lang/PCFKeypad-1.0.0.zip",
  "softwareVersion": "1.0.0",
  "fileSize": 16,
  "datePublished": "2026-09-11",
  "license": "https://spdx.org/licenses/MIT"
}