ps2

PIC18: Connecting to a PS/2 mouse

ps2 pic In a previous article we saw how to connect to a PS/2 keyboard. Here we are completing topic by describing how a PS/2 mouse can be interfaced to a PIC micro.

PIC18: Connecting to a PS/2 keyboard

ps2 pic With the advent of the USB protocol in the 90's many peripherals' manufacturers abandoned the previous protocols and connections to adopt it as a unifying standard; in the past printers mostly used parallel/Centronics ports, modems were serials, scanners could use SCSI interfaces, which often required a daughter board to be placed inside the cabinet of PC's, and mice and keyboards had to be connected to PS/2 ports.

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