Basic Stamp SEROUT Help

jkdalex

Hi, I am new with basic stamp and I was wondering if someone could answer two questions for me -

1) I want to output the sequence·137 0 255 128 0 (5 seperate numbers) to a Roomba which recognizes them individually.· However, the only·way that works for me is·-

SEROUT Tpin, BMode_TX, [noparse][[/noparse]137]
SEROUT Tpin, BMode_TX, [noparse][[/noparse]0]
SEROUT Tpin, BMode_TX, [noparse][[/noparse]255]
SEROUT Tpin, BMode_TX, [noparse][[/noparse]128]
SEROUT Tpin, BMode_TX, [noparse][[/noparse]0]

Is there a more concise way of writing this? (assuming I am communicating at correct Tpin and BMode_TX inititalized already)

2) I also want to be able to write a program that takes an inputted key to make a decision.· Instead of using numbers to denote my selection, I would like to use characters.

If my code is this - SERIN RPin, BMode_RX, MaxTime, Timeout, [noparse][[/noparse]Choice]· and choice holds the character selection, what type should I declare "choice" as?

Thank you for your time and efforts!· It is much appreciated.
·

Chris Savage

Hello,
·· You could try it this way:

SEROUT Tpin, BMode_TX, [noparse][[/noparse]137, 0, 255, 128, 0]

If that is not working, but the other way is, then it would seem the data is going to fast for the receiving device.· If that's the case then you could use a pacing value to slow it down a bit.

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Chris Savage
Parallax Tech Support
csavage@parallax.com

jkdalex

Thank you for your reply.· I was wondering about the second question - I have read appendix C in the basic stamp code and it seems that the only characters the basic stamp can accept is from A-F.

I would like to be able to implement the following code -

Choice VAR Word
DEBUG CLS,"Which direction would you like to go?",CR
DEBUG "[noparse][[/noparse]F]orward, [noparse][[/noparse]B]ack, [noparse][[/noparse]L]eft, [noparse][[/noparse]R]ight, [noparse][[/noparse]S]top",CR, ">> "· ' Request Choice
SERIN RPin, BMode_RX, MaxTime, Timeout, [noparse][[/noparse]Word Choice] ' Await serial data

But it won't accept a character (i.e. 'R') for "Choice".· What type of variable should I declare Choice to be and how should I change my code?

All the SERIN documentation seems to use DEC as the argument but I would like to use something besides numbers.

Thank you [noparse]:)[/noparse]

Bruce Bates

jkdalex -

Just define it as a BYTE like this:

Choice VAR Byte
DEBUG CLS,"Which direction would you like to go?",CR
DEBUG "[noparse][[/noparse]F]orward, [noparse][[/noparse]B]ack, [noparse][[/noparse]L]eft, [noparse][[/noparse]R]ight, [noparse][[/noparse]S]top",CR,">>"
SERIN RPin, BMode_RX, MaxTime, Timeout, [noparse][[/noparse]Choice>]

Then set up a SELECT CASE Statement:

Select Choice

Case = "F" or "f"
...
Case = "B' or "b"
...

etc.

Regards,

Bruce Bates

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Post Edited (Bruce Bates) : 6/1/2006 8:34:57 PM GMT

Bruce Bates

Help!

If anyone can remove the overstrikes from this last post, PLEASE do so! I have NO IDEA how they got in there.

I even tried changing the entire text letter-by-letter, but STILL couldn't remove them!

Web posting BYTES!

Regards,

Bruce Bates

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SSteve

Bruce, the strikeouts are caused by an S contained in square brackets (and the bold from a B contained in square brackets). If you enclose the code in [noparse][[/noparse]*code] [noparse][[/noparse]*/code] (without the asterisks), it should display correctly. Without the code tag, things in square brackets will be interpreted as formatting tags.

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