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Serial: Port

Photo: Serial Port Relay Board (Serial Port I/O Module) Serial Port Relay Board (Serial Port I/O Module)
You can program this stand alone controller via PC Serial Port. Simply connect a serial cable from your computer to the connector on relay board.
Photo: Serial Port Relay Board Upgrade Kit Serial Port Relay Board Upgrade Kit
You can program this stand alone controller via PC Serial Port. Simply connect a serial cable from your computer to the connector on relay board.
Photo: Serial PIC Programmer Serial PIC Programmer
An entry level programmer and a terrific educational aid. The 16C84 micro-controller from Microchip Technologies has become very popular with hobbyists and beginners. Does not require U/V light to erase programs; programs are erased electrically and the c
Photo: Parallel Port Relay Switch Board Parallel Port Relay Switch Board
Use an old PC as a "dedicated controller" to turn on or off devices lab or radio shack. The circuit includes eight relays controlled with (included) software for either DOS or Windows 3.1. The kit is a boon to the Science Fair project, laborator
Photo: Parallel Port Relay Board Parallel Port Relay Board
Use an old PC as a dedicated controller to turn on or off devices lab or radio shack. The circuit includes eight relays controlled with (included) software for either DOS or Windows 3.1. The kit is a boon to the Science Fair project, laboratory experiment
Photo: USB Interface Board - (Universal Serial Bus Circuit) USB Interface Board - (Universal Serial Bus Circuit)
Allows for connection to Personal Computers USB (Universal Serial Bus)