Applesoft? Comands to turn on and off annunciators in game port

[deluca4@tcnj.edu (Dan)]

Hi, I am teaching a highschool electronics course adn found a bunch of
apple IIe's stashed away in a closet.  I would like to interface these
with some simple electronic components to help teach computer control.
 I understand that the game port is probably the most straightfoward
way of doing this.  (I am trying to find a parralle card)  However, I
cannot figure our how to activate the annunciator ports on the 16 pin
DIP game port.  I am sorry if this has been beaten to death in this
forum, but I do not have accese to an Apple referance manual at the
currnet time.  Can this be done in applesoft, or do yo need to write
it in assembler language.  If it can be done could someone give me
sample commands, I understand it has to do with PEEK's and POKE's but
I have been having some trouble ptting all the various bits of
information I have found around the net togetehr to figure this out. 
Thanks.