Just thought I'd post a follow up now that my project is complete. I figured out a way to do it without soldering the TTL jumpers: I just used the serial output pin on the basic stamp, which is typically used for programming the unit.

The downside of this is that my development board doesn't make ...

Ok, that makes sense. Here is the script I ran that appears to have worked:

Line0=Raw /254//157//1/
Line1=Raw /254//57//103/
Line2=Raw /254//157//0/

I cut the power and was able to reconnect at 9600 baud and issue some of the uProject test commands without getting gibberish, so it seems to have ...

Troy,

Thanks for the reply! I figured as much about the soldering...I borrowed an iron with a finer tip from a friend, so hopefully that will work.

Regarding changing the baud rate in uProject, why use the raw data command? Can't I just use the Set_Baudrate command?

So what I need to do is:
1 ...

I have an LK204-25 Rev 2 and am trying to connect it to a Basic Stamp 2. The BS2 communicates at a maximum of 9600 baud and uses 0-5volts, so I think I need to modify the LK's jumpers to set it to 9600 baud and TTL, right?

I see there are 7 sets of jumpers:
3 for 232 (currently in)
2 for TTL
2 for ...

Hello,

I have a project where I think your LK204-25-IY would work well, but I need to build a custom matrix keypad to fit my requirements. Do you have an example schematic for a standard matrix keypad?

Will it work if I literally just have an array of switches like this:
http://www.dribin.org ...