少し前にArduinoProMicro（Leonardo）を使ってHID機能を持つスイッチBOXを考えたが、この仕様で割り当てられる機能は8つまで（外部スイッチ用ジャックの数）である。 あるアプリは「 Space、Enter 、Tab 、BackSpace、→、 ←、 ↑、 ↓ 」、別のアプリは「h、k、l ...

「トランジスタ技術」（トラ技）という雑誌をご存じでしょうか？買って読んだことはなくても名前ぐらいは皆さんご存じだと思います。 筆者は、高校生から大学生ぐらいにかけて頻繁に買って読んでいたのですが、会社に通い始めて、仕事の内容が少し ...

The newly released Arduino Leonardo has a few very interesting features, most notably the ability to act as a USB keyboard and mouse thanks to the new ATmega 32U4 microcontroller. This feature isn’t ...

The loop() function continuously listens for newline-terminated strings on the serial port. It then uses a pretty basic if/else-if chain to turn these into HID inputs. The Arduino responds "OK\n" on ...

[Giovanni Bernardo] has a very important job – managing the audio for several Christmas events. Desiring a simple and effective control interface, he designed a dedicated media keyboard to run the ...

Described here are the construction details of a universal serial bus human interface device (USB HID) external keyboard for devices running on Windows and/or Android operating systems. The keyboard ...