I have a bunch of serial devices that I need to communicate with. Some of them are connected to native serial ports, and some have USB->RS232 adapters. I am communicating to them via the serial port ...

I'm a bit out of my league on this one. I need to take realtime data from a serial source and display it in a "retail display" type of fashion. My PLC sends data out via RS232 (I also have RF485 \ ...

Before 2000, desktop printers for business had one of two interfaces: serial and parallel. The type of interface dictated the type of cable you used to connect the printer to the PC and how fast the ...

A PC’s serial port provides signal lines that you can use to read voltage levels of digital circuits. You can use the port to test digital TTL (transistor-to-transistor-logic)-level circuits. You just ...

Although serial port connections have been replaced by USB ports in most computers, older business equipment such as fax machines and printers may still utilize them. When a serial port stops ...

I know, RS-232 is not gone completely but in most things it has disappeared. Recently I bought a new laptop to use in my ham shack. I have several older accessories that use RS-232 and I had hoped to ...

Over the last two weeks I published an article reference the USB to serial converter see Project Usb to serial converter http://edn.com/project/mark_harrington/usb-to ...

What is a serial port? Serial ports are generally built into the motherboard. This is why the connectors behind the casing that are connected to the motherboard by a wire cable can be used to connect ...

When did you last buy a mouse? Did it have a little adapter in the box? There was a time when if you bought a USB mouse, in the box was also an adapter to allow it to be used with the older PS/2 ...