re: Optrex Temperature Compensation Neil, The Optrex LCD manual has example circuits for temperature compensation. I'm working from a 1995 manual that I originally got from DigiKey. They list their American office phone number as (313) 416-8500. I've used a variety of their DMC displays but I have no experience with temperature compensation. - Tom At 02:49 AM 4/10/97 -0400, you wrote: >I am using a PIC16c74 to interface with an oprex STN 40x2 character >LCD display. the display will be in an automotive environiment in >the cabin of the car and is subject to wide temperature extremes >during operation. Does anyone have a circuit that compensates >the LCD driving voltage for temperature? I considered using the PIC >for this task, but I don't have any A/D lines free. I would appreciate >any advice. > >