1. Windows Central Question's Avatar
    currently in my project I'm trying to make a circut that when i plug it in, has two ports. One acts as a simple ps2 keyboard and one is a simple usb->serial.

    Currently my circuit uses a HT82K629A driven by a chain of 74HC595D 8 bit shift registers. It looks like it might work. But i'm having trouble with board space and chip costs.

    I originally tried the (ATmega32u4) "Arduino Leonardo" style but since this is going into an older embedded system, the drivers like to either not work or not exist.

    Is there a chip that exists that is shows up as a standard keyboard to windows XP, but is controllable with Serial or I2C ext?

    Will this circuit work as I intended?
    03-30-2018 02:44 AM

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