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 ...

Master criminals, serial adulterers, and other tinfoil-hat-wearers spend their lives looking over their shoulders, scared of being caught with a ...

Of course, this wasn’t my final code, but it shows how easy it was to write some portable code to work with the serial port.