http://www.circuitcellar.com/library/toc.asp ISSUE 157 August 2003 Theme: Wireless Communications Build Your Own Four-Function Calculator=97Mad Dash for Cash Contest Entry, = by Daneil Ramirez, 28 -----Original Message----- From: Philip Pemberton Sent: Feb 24, 2004 6:31 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: ] Circuit Cellar contest In message <006801c3fb1b$9afd82e0$050010ac@fol> Floret Morgenstern wrote: > Or a graphical calculator (I think that would impress them!). Interesting you should mention that, actually - I'm thinking about building= a programmer's calculator using a few spare PICs. A 16F628 for the display an= d a 16F877 for the number crunching. Display will be three HP HDSP-2302 4-character 5x7 matrix LED displays, so 12 characters in total, using a tweaked version of the HD44780 character se= t. It will probably have shift, rotate, add, subtract, Bin/hex/oct/dec radix conversion as basic features, maybe with a few more added later. No floatin= g point though - I've got a Sharp "SVPAM" scientific calculator for that. > Hm, a practical idea would be to build a card reader (MMC, CFC, etc.) wit= h > an IDE interface for harddisks and USB, so someone could copy images from > his/her digital camera to harddrive! Now that I would pay good money for - as long as it accepted Smartmedia cards. :) Later. -- Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB= , philpem@dsl.pipex.com | ViewFinder, 10BaseT Ethernet, 2-slice, http://www.philpem.dsl.pipex.com/ | 48xCD, ARCINv6c IDE, SCSI ... If it wasn't for C, we would be using BASI, PASAL and OBOL! -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body