Serial communications Visual Basic library for RS232 and multi-drop RS485 and RS422 serial ports. Provides capability to easily develop Visual Basic and .NET applications that access data from any serial port device. Supports 256 ports, control multiple ports simultaneously, modem control, virtual serial ports (USB to serial, Bluetooth serial), port re-entrant, hardware/software flow control, serial line status & control. etc. Royalty free.
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