That pressure sensing capsule found in most disposable #vape pens can very easily be turned into a #touchSensitive switch that is capable of switching currents high enough to activate small relays and solenoids

Simply slice the top off, exposing the the edges of the inner and outer conductive cylindrical walls. Bridging the two walls with something no more conductive than human skin is sufficient to trigger it

#making #electronics #solenoid #eCigarette #VapePen #lithiumPolymer #battery