keypad and decoder
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Posts: 46,084
I am currently using a bs2p with a keypad that has 4 buttons. I am using the
button command to read the switches and all that works fine. It's a pain in the
but to enter numbers though because you have to create a counter and advance the
counter one step at a time till you get the number you want. I am thinking
about going to a 12 button keypad. Is this a good choice or not? Any
complaints or drawbacks with this method of inputing data. I have seen some
lcds like the one I am using that have a decoder on them is this the best way to
go? Or does reading them with RCtime better.
[noparse][[/noparse]Non-text portions of this message have been removed]
button command to read the switches and all that works fine. It's a pain in the
but to enter numbers though because you have to create a counter and advance the
counter one step at a time till you get the number you want. I am thinking
about going to a 12 button keypad. Is this a good choice or not? Any
complaints or drawbacks with this method of inputing data. I have seen some
lcds like the one I am using that have a decoder on them is this the best way to
go? Or does reading them with RCtime better.
[noparse][[/noparse]Non-text portions of this message have been removed]
Comments
Parallax App notes for the BS2, etc. that cover pretty much what you are
trying to do. I recommend you hit
http://www.parallaxinc.com/html_files/downloads/download_documentation.htm
and download the BASIC Stamp II Application Notes, and/or hit:
http://www.parallaxinc.com/html_files/downloads/downloads_appkits.htm
and get LED Display Terminal AppMod documentation and/or the MAXIM
7219-7221 8-digit LED Display Driver AppKit. One of these should help guide
you. Tracing app notes, while refering to my Stamp manuals, is how I've
learned most of what I have done so far.
Don
Original Message
From: "Ricky Konvicka" <ricky@m...>
To: <basicstamps@yahoogroups.com>
Sent: Friday, May 10, 2002 12:38 PM
Subject: [noparse][[/noparse]basicstamps] keypad and decoder
> I am currently using a bs2p with a keypad that has 4 buttons. I am using
the button command to read the switches and all that works fine. It's a
pain in the but to enter numbers though because you have to create a counter
and advance the counter one step at a time till you get the number you want.
I am thinking about going to a 12 button keypad. Is this a good choice or
not? Any complaints or drawbacks with this method of inputing data. I have
seen some lcds like the one I am using that have a decoder on them is this
the best way to go? Or does reading them with RCtime better.
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
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>
>
encountered. It is a great way to interface any size keypad with minimal
software required ( and minimal processor time).
basic stamp.
>From: "Ricky Konvicka" <ricky@m...>
>Reply-To: basicstamps@yahoogroups.com
>To: <basicstamps@yahoogroups.com>
>Subject: [noparse][[/noparse]basicstamps] keypad and decoder
>Date: Fri, 10 May 2002 14:38:31 -0500
>
>I am currently using a bs2p with a keypad that has 4 buttons. I am using
>the button command to read the switches and all that works fine. It's a
>pain in the but to enter numbers though because you have to create a
>counter and advance the counter one step at a time till you get the number
>you want. I am thinking about going to a 12 button keypad. Is this a good
>choice or not? Any complaints or drawbacks with this method of inputing
>data. I have seen some lcds like the one I am using that have a decoder on
>them is this the best way to go? Or does reading them with RCtime better.
>
>
>[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/
>
>
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