stamp BSX avec Matrix orbital LK 204-25-wb-c74
Hello
i am french, sorry for my bad english, i have need information for connect the matrix orbital LK 204-25-WB whis keyboard in serial whis BASIC STAMP BSX or BS2
Thank you verry mutch
"Merci beaucoup"
Denis France
i am french, sorry for my bad english, i have need information for connect the matrix orbital LK 204-25-WB whis keyboard in serial whis BASIC STAMP BSX or BS2
Thank you verry mutch
"Merci beaucoup"
Denis France
![confused.gif](http://forums.parallax.com/images/smilies/confused.gif)
Comments
Obviously, you must have a source of power and ground for the display. Page 10 of the documentation shows where to connect power and ground.
You can connect the Tx and Rx signals to the Stamp using either the connections on page 10 or the DB-9 connector shown on page 9. The BASIC Stamp Syntax and Reference Manual (www.parallax.com/Portals/0/Downloads/docs/prod/stamps/web-BSM-v2.2.pdf) shows how to connect a DB-9 connector to Stamp I/O pins (pages 395 and 417).
There's nothing special about using the keyboard with the LK204-25. The documentation explains how the keyboard works and describes the commands to the LK204-25 to change how the keyboard and LK204-25 behaves.
I believe the default is for the LK204-25 to send the code for each keypress to the Stamp.
Denis
www.parallax.com/Portals/0/Downloads/docs/cols/nv/vol3/col/nv85.pdf
The BS2 and BS2sx operate at different speeds and some statements (like SERIN and SEROUT) use numbers to specify timing (like Baud) that are different from one Stamp model to another. The Stamp Manual and the Stamp Editor's help files give the different values needed for the different Stamp models. Look at the sections on the SERIN and SEROUT statements.
Denis
SEROUT <pin>,16504,[noparse][[/noparse]"Hello there",CR]
The "16504" specifies 19,200 Baud and inverted mode which is used with the connections shown on page 417 of the Stamp Manual.
To use the DB-9 connector (RS232) you need to use a line driver chip such as·a Maxim Max233a or Max232 to handle the 12v vs 5v serial signal.
From page 17 of the manual:· http://www.matrixorbital.ca/manuals/LK_series/LK204-25/LK204-25.pdf
The display module communicates at standard voltage levels of ±12V to ±12V or at TTL levels of 0 to +5V by setting the Protocol Select Jumpers to TTL."
There is more information at:· http://www.matrixorbital.ca/appnotes/basic_stamp/
·
en francais: Merci a tous pour votre aide vous etes tr