quote:
Originally posted by Hah
Its easy enough, i can both program i/o to the parallel port and i can make plugins, but the problem is setting up relays to turn off and on, i really really cant do that! If I could find out how to go from a parallel wire to a 240 lamp, i would make it, but i dont have a single clue about the electrics.
that's very easy. use 2 outputs of the parallel port: one of them will be 0 V and with the other you control the power (outputing a 0 or a 1 logic, ie: 0 or 5 V). connect those 2 lines to the relay and also connect a line with 220-230-240 V (what needed) to it to the common entry of the relay and that line to the lamp. I't s easier than what it seems