Originally posted by kimpossible
As far as asking for my comments: I offered some. The 555 drifts significantly. You pushed that aside \"oh, it's working fine for me\" but you don't have any measurable data to confirm that.
I didn't push it aside, i said it works for now (i got a LED to flash, which I didn't have the night before hehe ) ... it might not be very reliable, but i wouldn't know about it it. That's why i need to build it, to have measurable data (which, as you pointed out, i don't have yet). I don't know if it's going to work or not... but i do know i have no idea how to make a PIC work... which sums up to: if simple electronics won't work for me, i can't build it.

As for skin resistance... a 3 MOhm reading would probably be very poor in terms of accuracy (the smaller the resistance, the better the reading with the timer), but maybe that can be fixed with some variable resistors for calibration further on down the road.

Either ways, i'm doing this for fun... if it works, i'll be delighted and i'm sure some people will find it useful... but if it doesn't, i have nothing to lose (other than a few $ and a bit of time).

and i'm not trying to be mean by saying you could contribute a bit more, but i honestly think it wouldn't take away from your target market... there are plans for the Kvasar out, and i don't know many people who built one... in fact, there are people who'd pay close to the price of an REM Dreamer or a Nova Dreamer to have it built for them.
I certainly do appreciate the input you're offering (especially in your last post, considering skin resistance values).