Bob Blick email (remove spam text)
>However, I believe you've got a mistaken impression on the LED voltage
>drop. They usually start about 1.7-2.0 V. In this case
The original poster probably had the drop right.
Backlit LCD displays I've used have a series+parallel string and you have
the equivalent of 2 series LEDs.
Back to the original topic, is it neccessary to have infinite levels? Why
not just 3 levels controlled by two pins, each driving a transistor and
If you decide to so software PWM, make it very regular, or you'll notice
pulsing as the PIC does different tasks(especially if you do a timer based
interrupt and sometimes shut off interrupts!).
- Every day, computers are making people easier to use -
See also: www.piclist.com/techref/displays.htm?key=led
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