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HP41 extension ports pinout
02-11-2019, 02:01 PM
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eried Offline
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Joined: Dec 2013
HP41 extension ports pinout
Hi!

I was wondering if there is a place with all the details about the expansion ports? It would be very easy to write new expansion cards using an arduino chip, or a $3 USD ESP8266 to give the 41 access to wifi

Can anyone point me in the right direction?
My website: erwin.ried.cl
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Messages In This Thread
HP41 extension ports pinout - eried - 02-11-2019 02:01 PM
Try the service manual? - striegel - 02-11-2019, 06:28 PM
RE: HP41 extension ports pinout - eried - 02-11-2019, 08:51 PM
RE: HP41 extension ports pinout - eried - 02-11-2019, 11:21 PM
RE: HP41 extension ports pinout - eried - 02-13-2019, 12:22 PM
RE: HP41 extension ports pinout - ijabbott - 02-11-2019, 09:21 PM
RE: HP41 extension ports pinout - AndiGer - 02-11-2019, 07:27 PM
RE: HP41 extension ports pinout - CY-CL - 02-11-2019, 09:21 PM
RE: HP41 extension ports pinout - mfleming - 02-12-2019, 11:36 PM



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