challenge
Hi ben
With thw stop smoking buzz why not make a cheap e-cig box mod with the same features as one of the expensive ones like using a 18650 li-io battery in a box with a ajustable volt regulator using a pot and 1 led diplay that can show volts and omhs with a built in charging curcuit with a 3 toggle switch that like centre is off one way charge other is device on anothe 3 way for the led center led display off one way ohms other volts and a 510 connecter on top 1 push switch to vape
then maybe a part 2 on putting it all in egale
thanks david