Date: Wed, 27 May 1998 15:09:50 -0400 (EDT) From: Marc Nicholas <marc@hippocampus.net> To: Peter Dufault <dufault@hda.com> Cc: Julian Elischer <julian@whistle.com>, freebsd-small@FreeBSD.ORG Subject: Re: LCDs... Message-ID: <Pine.BSF.3.95.980527150713.19209J-100000@neuron.hippocampus.net> In-Reply-To: <199805271840.OAA18243@hda.hda.com>
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Peter et al... On Wed, 27 May 1998, Peter Dufault wrote: > You could also drive the parallel connection on Optrex style > controllers through the parallel port. I would imagine this would become timing sensitive, no? > We use the I2C bus using the access.bus physical TELCO jack pinout > for this because these LCDs and buttons eventually run on > microcontrollers. I like this - it daisy chains well so you can > have a button module and a display module and click them together. <dumb question> How do you get an I2C bus on a PeeCee? Can you fake it somehow? I'd be interested in references for I2C buttons...or keypads. > Check the back of the mag "Circuit Cellar INK The Computer Applications > Journal" (circuitcellar.com) for some RS232 displays I know absolutely > nothing about (www.matrix-orbital.com). The Matrix Orbital stuff does indeed look neat, although a little expensive for our application. =marc -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Hippocampus OSD, Inc. "Industrial Strength Internet Solutions" vox://416.979.9000 fax://416.979.8223 http://www.hippocampus.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-small" in the body of the message
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