[rescue] POS Serial Display's

Wai-Sun Chia waisun.chia at hp.com
Mon Jan 3 22:07:49 CST 2005

Thomas Gallaway wrote:
> So a while ago I found a new in box POS display in a dumpster. I was 
> wondering if anybody knew how to control those if there is any standard. 
> It seems like if I just throw serial data at it it will update the 
> display line one, then line two then jump back to line one and overwrite 
> that data.
> I tried to send all of ascii at it to find a "clear" command but had no 

Since you've tried all ASCII. Perhaps it's not there...
Then you'd have to make a "clear" command on your own. Pretty easy 
though, clear is just printing spaces to clear the entire 2 lines. So 
it'd be a bit like 3270 terminals, ie. write operations are by the 

> luck. Anybody have any background at that? It's be cool to get 
> diagnostic outputs on it.

Yeah. I agree. :-)


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