feat: 全量同步 254 个常用的 Arduino 扩展库文件

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2026-01-24 16:05:38 +08:00
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## Keypad library for Arduino
**Authors:** *Mark Stanley***,** *Alexander Brevig*
This repository is a copy of the code found here [[Arduino Playground]](http://playground.arduino.cc/Code/Keypad).
The source and file structure has been modified to conform to the newer `1.5r2` library specification and is not compatible with legacy IDE's.
For these IDE's, visit the link above to grab the pre `1.0` compatible version, or download it directly here: [[pre `1.0` version]](http://playground.arduino.cc/uploads/Code/keypad.zip).