Sorry, you've lost me there, 1/2 bias, 1/3 bias, please elaborate. Also, I wasn't necessarily thinking of the 16C9xx series, couldn't you drive these via a cmos latching shift register driven by a PIC, as long as you invert the signal to the LCD at a constant rate? TIA - Martin R. Green elimar@bigfoot.com On Fri, 10 Oct 1997 07:45:02 -0800, Andrew Warren wrote: >Martin R. Green wrote: > >> I don't know if anyone else has thought of this, but just about now >> there should be a wealth of dead Tamagotchi displays at the bottom >> of toyboxes everywhere. I have no idea how difficult they would be >> to drive, but they ar basically just a small dot matrix display with >> a few custom icons that you can just ignore. >> >> Anybody tried interfacing one of these yet? > >Martin: > >I haven't looked closely at those displays, but if they're anything >like the overwhelming majority of wristwatch LCD displays, they're >designed for 1/2 bias. Unfortunately, the PIC16C9xx devices only >support 1/3 bias. > >-Andy > >=== Andrew Warren - fastfwd@ix.netcom.com >=== Fast Forward Engineering - Vista, California >=== http://www.geocities.com/SiliconValley/2499