Although a “CommsLink” module providing an RS-232 port was available back in the day, it’s become hard to find, inspiring [James] to design a completely new module based on an Arduino Nano.

I see how that was confusing… I meant that ALL of the Arduino boards connect to the computer using a virtual USB serial port. The ATMEGA ones convert it to real TTL logic-level serial signals on ...

With Omega Engineering’s Model WRS232-USB universal wireless RS-232-to-USB transceiver, you can make any RS-232 device wireless. Simply connect the wireless transmitter module to the device’s RS-232 ...

Claimed as easy to use, the E5805A USB-to-RS232 interface can connect up to four RS232 test instruments to the USB port on a personal computer at baud rates up to 230 Kb/s per serial port.

With data transfer rates up to 920 kb/s (RS-232) and 2,000 kb/s (RS-422/485), the 32-pin FT8U232AM single-chip USB UART transfers serial data over the Universal Serial Bus. The ...