![]() Many interfaces have up to six additional lines to carry status and control information. The interface can have as few as three lines: one to carry data in each direction plus a ground line. NET to access serial ports, including USB virtual serial ports.Ī serial port is a computer interface that transmits bits one at a time. ![]() This article focuses on the PC side of serial-port communications. To add a serial port, attach a USB/serial adapter to a USB port. Or a PC can send commands to control robots or other devices. For example, a microcontroller can send sensor data for a PC to analyze and display. Serial ports can transfer data for just about any purpose. If you have a microcontroller circuit that needs to talk to a PC, a serial port can do the job. This article originally appeared in the April 2008 Nuts & Volts.Īlso see Access Serial Ports with PICBASIC. NET Access Serial Ports with Visual Basic.
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