jeffj@sfsup.UUCP (02/19/87)
[[1 2 3 I just got the HP28C and I love it. I want to build an interface to my Z80 CP/M system, where the IR beam is received and presented to a parallel port. What frequency is the IR beam, and what coding is used? What I need to know is what detector and receiver chip to use. Can this information be released? Are they commercially available? Thanks Jeffrey 'have HP, will calculate' Jonas {ihnp4 | allegra | cbosgd} attunix ! jeffj