You as a sensor?
May 16, 2009
Quick question... I want to make sort of a "person switch". Two contacts, where each person would place one finger each on one of the contacts then when these two people would touch each other the circuit is completed. Now, I have not done any preliminary work on this at all --I havn't even measure-thingy'ed myself yet (I would assume we have to be talking some pretty major resistance here). --This would be going into a ADC channel of a picaxe and could use the 10-bit ADC if needed for acuracy. Oh, and if it is not too much to ask, I want the least number of parts and it can't kill you when you use it.
Anyone have any starting thoughts here? --Transistors? Op-amps? Mayonnaise?