Connecting 12v keyboard to RX/TX

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hello,

i'm new arduino community have degree.

so, don't have electronic knowledge, have following questions.

i've found keyboard powered 12v , has d0/d1 connector.

is there possibility read input of keyboard on arduino (as arduino 5v).

i've found max232 nothing concrete on possibilities are.

i use waterproof can control relay arduino open garage door.

thanks in advance!

you have not provided relevant info. post link datasheet keyboard. acronyms do/di not used serial communications.

...r


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