Cross-Platform Serial in General

Ned Konz ned at squeakland.org
Wed Mar 16 20:56:27 UTC 2005


On Wednesday 16 March 2005 11:37 am, Dan Ingalls wrote:
> IrDA:  I wish I knew more about it.  Is it just computer-to-computer, or is
> it compatible with all the hand-held remote controllers and their hosts
> like TVs, boom boxes, even some cameras?  It would be cool to write Squeak
> programs on PDAs that could work as smart remotes.

IrDA is (as I understand) not generally used by TV remote controls.

They instead use a simpler coding scheme, without the block-level checksums, 
etc. that the IrDA protocol specifies.

Of course, once you have IR hardware on a PDA you may be able to drive it to 
put out the TV remote control codes too. One downside might be that you have 
to be very accurate about frequencies and timing; I don't think Squeak can 
reliably put out a 38KHz pulse train with that kind of accuracy on most PDAs.

-- 
Ned Konz
http://bike-nomad.com/squeak/



More information about the Squeak-dev mailing list