Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!floyd!harpo!decvax!ucbvax!ucbcad!tektronix!hplabs!sri-unix!knutson@ut-ngp.ARPA From: knutson@ut-ngp.ARPA Newsgroups: net.micro Subject: Homebrew mouse or lightpen Message-ID: <111@sri-arpa.UUCP> Date: Mon, 19-Mar-84 16:55:58 EST Article-I.D.: sri-arpa.111 Posted: Mon Mar 19 16:55:58 1984 Date-Received: Thu, 22-Mar-84 02:25:31 EST Lines: 9 Any electronic gurus out there? I would like to be able to rig up a lightpen or mouse for my Z100. I know there are some commercial ones but I like to twiddle. Building a lightpen doesn't seem that hard. Just a photo-detector in a casing, perhaps a lense, and maybe a diode or two (I'm just guessing since I don't know word one about that kind of stuff). A mouse would be a bit tougher but not impossible. Would the parts for these cost just as much as the commercial product?