Okay, so now that I've gotten your attention... I've read a bunch of posts, differing topics and ideas, on this forum and on others-- and nobody wants to touch this subject with a 10-foot pole.
I understand the legal and ethical dangers of advice in this area, and that there are major safety concerns.
It is BECAUSE of these concerns that I am seeking the advice of those much smarter than I. So understand that I have all of these thoughts at the forefront of my mind when asking for help on this.
I am looking for assistance in using an Arduino to safely create an electric shock against the skin. There are many different applications (perhaps I'm masochistic in pursuing this, if so, whatever).
For example, I once played a video game at an arcade based on Uncle Fester from the Munsters. You had to hang on to two metal posts with your hands while a meter slowly lit up on the machine... the backdrop of the machine was a picture of Uncle Fester, and when the meter got to the top the lightbulb in his mouth lit up... all the while an electric shock in the two posts got stronger and stronger, uncomfortably so but not exactly painful. The idea was to hold on as long as you could.
or...
TENS units for pain control. I'm sure people are familiar with these. I live with someone who suffers from chronic pain and we've tried the standard TENS units before to no effect... however a programmable one might be just the key, as the single constant effect hers had was more irritating that helpful. She has often said one that pulsed or changed up some would have been better. Plus, making one myself is a lot cheaper than buying these units.
Most of the threads I've read revolved heavily around "why do you want to do this" and "if someone has a pacemaker or a heart condition..." etc. So I want to be absolutely clear that I do not intend to do anything to anybody without their full and informed consent -- and likely, my experimentation is going to likely be just for myself.
I am asking for help so that I don't hurt MYSELF. Much. Anyway. And I think also that IF other people are looking for answers to similar questions we (as a community) might actually be doing more harm than good by being so vague about the answers. I've seen some REALLY sketchy ideas out there for ways to shock someone, and people ARE going to get hurt if they mess around without better knowledge... and just warning people not to mess around is about as effective as telling teenagers to just not have sex, instead of teaching them how to do it safely.
SO
Can anyone help? I own an Arduino UNO and I understand that a TENS unit is basically a square wave generator... and I understand that the TONE function basically creates a square wave. Can this be easily and safely scaled up?
And how does this differ than a "shocking" sensation... or doesn't it? Is it just a matter of voltage as to how "unpleasant" the feeling is?
All comments welcome of course. Please help!