I was going to wait for Jim to announce his site, but there's been a bunch of in terest in this - He recently posted my circuit here: http://www.jpes.com/LCD01.html The test code for this is from here: http://home1.gte.net/cramer/PIC/normpic.htm Between the two, you should be able to make it work, if not, let me know. At 09:03 PM 10/11/99 -0400, you wrote: >Ouch, I just ordered a bunch of these. Have had absolutely no problem with >4-bit, 8-bit and serial pic setups on Powertip and Optrex units in the past, >and figured that if these have a 44780 chip, they must be ok too. Hope >somebody finds the solution. Has anybody confirmed they do need -5v >contrast voltage? > >Bill Kichman, P.E. >Cornwall, PA > >-----Original Message----- >From: Keelan Lightfoot >To: PICLIST@MITVMA.MIT.EDU >Date: Saturday, October 02, 1999 6:15 PM >Subject: Re: 9237-op lcd interface > > >>Have a look at: >> >>ftp://ftp.ee.ualberta.ca/pub/cookbook/faq/lcd.doc >> >>This FAQ covers the Hitachi 44780 LCD interface, and compatibles. >> >>- Keelan >> >>>I purchased this unit from mpja, and found their spec sheet which shows >>>pinouts. What it doesn't describe is the method of interfacing with the >>>unit. Anybody know how to work with this device? >> > Get HushMail. The world's first free, fully encrypted, web-based email system. Speak freely with HushMail.... http://www.hushmail.com