测试 安装 input-utils pi@raspberrypi:~ $ sudo apt-get install input-utils Reading package lists... Done Building dependency tree Reading state information... Done The following NEW packages will be installed: input-utils 0 upgraded, 1 newly installed, 0…
使用device-tree (DT) overlay应该是更方便的方法: http://blog.gegg.us/2017/01/setting-up-a-gpio-button-keyboard-on-a-raspberry-pi/ Back in late 2013, when I wrote the first Version of a raspberry-pi based software controlling a HD44780 based 4×20 characters LCD a…