one touch windows

Hey guys, i just came across this board, and it's awesome...

I'm currently trying to figure out how to make a custom "one touch" window module, first off i don't really feel like buying one, and secondly it's interesting, also while i'm making one i can put some custom stuff in it.

So my question is, how do i wire up an overload circuit? I'm sure you know what i mean, but if you don't... A relay with a digital circuit activates when i supply voltage to it (there's a separate always on DC power source) which then applies power to a motor. when the said motor jams (get to the end of it's path) the circuit will load up, so here is what i need to do, have the dcc flip flop circuit drop the state... All i need to know is how to wire up an overload detector... and also how to "calibrate" it.

I'd appreciate any diagrams or such. thanks

It sounds like your pretty set in wanting to make your own.  but if you decide differently I suggest going to Asian wolf.com to get a "smart" rollup module.  It can roll 2 windows up and down or 4 in one direction.  Most modules I've seen can only do one direction.

Good luck with the overload circuitry!