SV: [basicstamps] LCD display
Archiver
Posts: 46,084
Greetings!
In theory you could 'piggy-back' a connector to the LCD driver circuit
inputs and read off the data that gets transmitted to it...
but...
I'm not certain that the Stamp is fast enough to capture the data.
(Maybe with a buffer circuit of some sort)
This of course assumes that you have access to the driver datasheets for
decoding of the information.
(And that there is a separate LCD controller chip. It's often included in
the main chip of calculators, small phone-books, thermometers, and such
items )
If the LCD driver is included in the main chip, there's no way around it.
(Trying to mess with the signals sent to the LCD is 'difficult' at best, and
destructive at worst. Besides, there's a lot more data to read to get the
same information)
:-)
Trygve
Opprinnelig melding
Fra: Charles Weiskopf [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=foVSLKub5jqXRETp1T3nRZOjLN0vT028TAxNzEO07mQQWSVyCLxC8OjHOFEK-sbbdBby7NB2NTP8EvQ0mw]cw002@d...[/url
Sendt: 20. januar 2003 11:18
Til: basicstamps@yahoogroups.com
Emne: [noparse][[/noparse]basicstamps] LCD display
Hello from France,
A lot of devices are only equipped with LCD display and have no other
possible output such serial, RC or pwm to transfer datas into a Stamp.
Is there a way (hardware or software) to read and transfer the states of
these segments directly into the Stamp ?
Charles Weiskopf
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In theory you could 'piggy-back' a connector to the LCD driver circuit
inputs and read off the data that gets transmitted to it...
but...
I'm not certain that the Stamp is fast enough to capture the data.
(Maybe with a buffer circuit of some sort)
This of course assumes that you have access to the driver datasheets for
decoding of the information.
(And that there is a separate LCD controller chip. It's often included in
the main chip of calculators, small phone-books, thermometers, and such
items )
If the LCD driver is included in the main chip, there's no way around it.
(Trying to mess with the signals sent to the LCD is 'difficult' at best, and
destructive at worst. Besides, there's a lot more data to read to get the
same information)
:-)
Trygve
Opprinnelig melding
Fra: Charles Weiskopf [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=foVSLKub5jqXRETp1T3nRZOjLN0vT028TAxNzEO07mQQWSVyCLxC8OjHOFEK-sbbdBby7NB2NTP8EvQ0mw]cw002@d...[/url
Sendt: 20. januar 2003 11:18
Til: basicstamps@yahoogroups.com
Emne: [noparse][[/noparse]basicstamps] LCD display
Hello from France,
A lot of devices are only equipped with LCD display and have no other
possible output such serial, RC or pwm to transfer datas into a Stamp.
Is there a way (hardware or software) to read and transfer the states of
these segments directly into the Stamp ?
Charles Weiskopf
[noparse][[/noparse]Non-text portions of this message have been removed]
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/