Modern suitcases feature resettable three-digit combination locks for secure travel. The article details how to set a new code, manage forgotten combinations through brute force or feel methods, and ...

This simple code lock circuit described here is of an electronic combination lock for daily use. It responds only to the roght sequence of four digits that are keyed in remotely. If a wrong key is ...

Nothing tests your patience like standing over your suitcase, getting stuck at a stubborn zip because the lock simply refuses to open. It usually happens at the worst time, right before leaving for ...