RE: TI-H: Power Savings
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RE: TI-H: Power Savings
If I had a couple laying around I would connect a multimeter to
the supply of the LCD and tell you exactly but I don't. I can
tell you that it is a fairly insignificant amount. That is why
LCD is used on most battery operated devices.
As a wild guess, I would say that the LCD consumes less than 1%
of the total battery drain. I base this on experience with other
LCD projects. For instance, if you were to take the display
completely out and hardwire something like a checkerboard
pattern, the four AAA batteries would probably display it for
6mo to a year at least.
As things are, mine runs down in about 10-16hrs of use. Before
about 1990, it would have been a safe assumption that most of
that was memory, but now days most gets eaten by the CPU. To the
best of my knowledge they have never built Z-80 with a power
down feature so we are stuck with this limitation unless of
coarse you provide for external power.
On Saturday, October 04, 1997 9:33 AM, Matthew R Price
[SMTP:pricem@juno.com] wrote:
> My friend and I are building a motion control module to attach
to the
> link port (info released sometime in the future). I was
wondering if
> anyone knows how much power is saved by turning of the LCD
screen. I am
> not sure if it would be worth it to turn off just the screen
cause the
> chip and all the parts would still be running. Anyone who's
got info,
> send it to me please.
>
>
> Thanx
> Matthew
>
>
> "One world, one web, one program"
> -Microsoft Promotional Ad
>
> "Ein volk, ein reich, ein fuhrer"
> -Adolph Hitler