A PC’s serial port provides signal lines that you can use to expand the number of input signals. With some additional circuitry tied to these lines, you can use the port to test digital TTL ...

This is an introduction to the Virtual Serial Port Driver by Eltima Software. They have offered an opportunity to the ElectroSchematics team to put the software through its paces. T.K. Hareendran will ...

Some software and specialty hardware requires you to use a traditional serial port. Serial ports have been around for decades and work by transferring one bit of data at a time at a relatively slow ...