The USB to serial adapter has a USB-A port on one end and a serial port on the other. The serial port is most commonly RS232, which is a standard that dates back to the 1960s.

With an inexpensive USB OTG adapter, you can connect things like keyboards, USB hard drives, and even gaming controllers to your Android phone or tablet.

To say that the RTL-SDR project was revolutionary might be something of an understatement. Taking a cheap little USB gadget and using it as a Software Defined Radio (SDR) to explore the radio spect… ...

Also, if I understand USB serial correctly, each serial port needs two endpoints, so you’d be limited to 3 ports on the AT30UC3A0128; larger parts might have more endpoints (I didn’t check ...

The ZeptoBit Isolated USB-UART Adapter allows communications between a device using logic level (1.8V to 5V) serial communication and a computer with a USB port.

Two new members join Sealevel Systems' SeaLink USB-to-serial product line, each offering eight independent serial ports for connecting RS-232 and RS-485 peripherals, such as bar-code scanners, ...

Expanding the SeaLINK USB family, the SeaLINK+I.DIN (Item# 2113) and SeaLINK+2I.DIN (Item# 2213) optically isolated USB to RS-232/-422/-485 adapters offer one or two serial ports, respectively ...