[Craig] cracked open a multimeter to unlock RS232 serial communications that can be used for data logging. There’s a couple of things that make this possible. First of all, the multimeter’s ...

Ultimately, the choice of industrial commu­nication protocol depends on the require­ments and constraints of the application.

Also known as a COM or RS-232 port, a serial port ... and this gives serial ports their main advantage: stability. Serial communication has remained largely unchanged for decades, meaning devices ...

Old Macs used the serial port for printers. Also known as an RS-232 port, serial ports provide very slow speeds and have been superseded by USB on desktop computers. USB-to-serial adapters are ...