The GPD Pocket 4 is an 8.8-inch laptop weighing just 770g, that is designed to combine portability with powerful performance.

2-port Isolated RS-232/422/485 Communication Module. Data Bits: 5, 6, 7, 8. Stop Bits: 1, 1.5, 2. Parity: None, even, odd. Baud Rate: 50 bps ~ 230.4 kbps. Data ...

Serial ports are widely used by sensors for data acquisition, and they were standard on early computers for connecting a modem, mouse and other peripherals. Old Macs used the serial port for printers.

Even though a serial port is harder to program than the parallel port ... The ‘transmit’ and ‘receive’ line on this connecter send and receive data between the computers. As the name indicates, the ...

In the early days of personal computers, incorporation of one or two (or more) RS-232 serial ports as general purpose I/O adaptors was common practice. Recently, this “vintage” standard has been ...