The "Safe Box" project is a handmade cardboard box system featuring a keypad, LCD screen, white LED, blue LED, and a buzzer. When powered on, the LCD prompts the user to enter a secret code. The ...

Arduinoを用いた二段階認証（ボタンとダイヤル）式の電子金庫システム。 LCDとLEDによる直感的なフィードバックを備え、両方のコードが一致した時のみサーボモータが作動して解錠します。 This Arduino-based electronic safe uses two-step authentication via buttons and a dial. It features LCD ...

I've recently written about three novelty projects involving the Arduino - the LED Periodic Table, the Pi Day clock and smart shelving - but I must also cover this more serious one: the Arduino ...