I’ve always considered barcodes to be one of those invisible innovations that profoundly changed the world. What we might recognize as modern barcodes were originally designed as a labor-saving device ...

意外と知られていないが、1次元のバーコードは簡単に作成できる。CODE39規格用フォント(CODE39フォントなどと呼ばれる)を使って数字を書けば良いだけだ。例えば納品書や請求書に使えば、バーコードスキャナを使って簡単にデータを呼び出せるようになる。

Amrit Singh has returned to Kickstarter for 5th time to launch his latest electronics project in the form of the Raspberry Pi barcode scanner. The compact wireless device features a buzzer, wireless ...