The adapter circuit in this repo carries an inexpensive CPL2102 USB breakout board, cheap and plentiful on eBay, and exposes configurable ports for talking to the above devices with minimal additional ...
We know, you’ve already got a USB to serial adapter. Probably several of them, in fact. But that doesn’t mean you couldn’t ...
My LG TV has an RS232 Service Port that can be used to control the TV (including Power On) via the serial protocol. I initially used a Raspberry Pi with a USB to Serial adapter and it worked great.
There was a time when if you bought a USB mouse, in the box was also ... it may well have come with an adapter for a 9-pin RS232 serial port. Those mice from a decade or more ago would have ...