Before USB ports became standard on PCs, several devices connected through a serial port. They're obsolete in many ways, but they still see some use.

Up to four modules can be installed in one groov EPIC chassis, providing a total of 16 serial ports to support communication requirements. Each port is selectable for RS-232C or RS-485 mode, with ...

The Serial Port Profile (SPP) is based on the RFCOMM (Radio Frequency Communications) protocol that emulates RS-232 serial ports.

Serial port virtualization is in great demand on the software market that’s why more and more issues arise on how to create and control serial ports. Virtual Serial Port Kit.

Today, everything from your computer to your dryer has wireless communications built in, but devices weren’t always so unencumbered by wires. What to do when you have a legacy serial device, … ...

Serial communications program opens COM port alias but actually works with specified physical COM port. Additional console utility allows to control Serial Port Mapper via command-line interface.

It turns out there is a serial port that uses TTL communication with a standard head-phone jack as an interface. [Will] soldered up a connector and used a USB to FTDI cable to interface with the ...

The simple method described here evaluates a one-wire device that uses pulse-width-encoded communications from a PC serial port. Communications errors such as parity and acknowledge ...