Serial communication

cclaud2 · 2006-04-21 01:03

Is it possible to send multiple variables at once through serout and receive those variables by serin?

"Sender"
SEROUT SO\FC, Baud, [noparse][[/noparse]dec tempS, dec pressureS] ' send multiple variables?

"Receiver"
SERIN SI\FC, Baud, [noparse][[/noparse]dec tempR, dec pressureR] ' receive·multiple variables?

-Or how would you do this?· Any help would be greatly appreciated.
·

Jon Williams · 2006-04-21 01:18

You just need to put a delimiter between the values on the transmit end so that the receiver can differentiate them:

SEROUT So\Fc, Baud, [noparse][[/noparse]DEC tempS, ",", DEC pressureS]

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Jon Williams
Applications Engineer, Parallax

cclaud2 · 2006-04-21 23:23

Well how would the receiver obtain and distinguish those variables?

SEROUT So\Fc, Baud, [noparse][[/noparse]DEC tempS, ",", DEC pressureS]

SERIN So\Fc, Baud, [noparse][[/noparse]DEC tempS,·",", DEC pressureS]· '<-- I cannot receive·
············································································· the·variables
·

Newzed · 2006-04-21 23:38

You can't format a serin like that.· You have to have a variable in the serin statement.· For example:

serin......[noparse][[/noparse]temp, press]

The Stamp would receive two bytes from the serout statement, receive the data and store what i received in temp and press.· You can then debug:

debug dec ? temp, cr
debug dec ? press, cr

OK?

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Sid Weaver
Do you have a Stamp Tester yet?
http://hometown.aol.com/newzed/index.html

·

Jon Williams · 2006-04-21 23:46

Make your SEROUT look like this

· SEROUT So\Fc, Baud, [noparse][[/noparse]DEC tempS, ",", DEC pressureS, ","]

... and it will work -- sorry, I left the delimiter off the second variable and this is required since you're moving data between the two devices as text.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Jon Williams
Applications Engineer, Parallax

Newzed · 2006-04-22 00:08

cclaud2, please ignore my post.· You can use a decimal formatter in a serin statement if the serout ahead of it is properly formatted.· Sorry about that.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Sid Weaver
Do you have a Stamp Tester yet?
http://hometown.aol.com/newzed/index.html

·

cclaud2 · 2006-04-22 01:06

I will give it a shot.· Thanks.

Falcon · 2011-08-10 05:43

I found a partial answer to my latest question in this old thread while searching, so I'm going to start here.

I have these six SEROUT text statements (see below) that I need to send to a PINK module when an event occurs. A simple webpage links to the PINK variables to fill certain table cells. I am monitoring 16 conditions in and around my home so all of this is multiplied by 16 and is taking up way too much space.

They do work individually, but I want to combine SEROUT variables to minimize the code size.

    SEROUT TX, BAUD, ["!NB0W20:OPEN", CLS]                    
    SEROUT TX, BAUD, ["!NB0W21:", CLS]                         
    SEROUT TX, BAUD, ["!NB0W60:DATE and TIME", CLS]              
    SEROUT TX, BAUD, ["!NB0WES:GARAGE DOOR OPEN", CLS]        
    SEROUT TX, BAUD, ["!NB0SM",CLS]                            
    SEROUT TX, BAUD, ["!NB0ST"]

I tried to combine three of them onto one line like this:

SEROUT TX, BAUD, ["!NB0W20:OPEN", "!NB0W21:", "!NB0W60:DATE and TIME", CLS]

That just resulted in the cell displaying this

OPEN!
NB0W21:!
NB0W60:DATE
and TIME

Not what I want.

This thread mentions placing "." delimiters between actual variables, whereas I am sending text "strings". Would this apply to the text as well?

falcon

Serial communication

Comments