I have a 41-CX, a 71B with a single HP-IL module and some 48SX/GX and a 50G. However my electronic knowledge is rather limited, very limited compared to all Gurus writing here, I am still nursing an idea of a project where I could use one or more of the above mentioned calcs to do some real world controlling. Like switching on and of a lamp or whatever funny engineering #things#. I would prefer to control the #thing# in such a manner that it would not need any AC-sources for the control.
How to do it? Anyone?
/Matti Sweden