searching for parts, heres what i got:
buck/boost module
DC-DC Adjustable boost buck regulator Power supply C28 | eBay
main power switch
Vandal Resistant Illuminated Switch (Latching) - Blue Ring at Xoxide!
drive cover
Lian Li 3.5" Drive Bay Cover (Black) at Xoxide!
then id need a pot to mount to the panel, a few rca connectors, lcd readout, and maybe a fuse to be safe
thoughts, comments?
A couple things to consider -
VV module - the input voltage does effect the output voltage, notice the range of outputs listed
are 2V's less than the input range listed, a 2V dropout is common for these types of modules,
that still means you have 10v's to play with, which is prolly enough to pop even a HV atty
also list amps at "about" 1 amp with 3 amp max, that suggest that for our uses you will be stressing
this board
LED switch - list only 50mA rating, if it works at all it prolly won't work for long
putting everything in the case - if you put the VV board in the case and just the switch and connector
at the end of the cable, you will loose some voltage depending on the quality of cable / length/ and
resistance of atty/carto, may not loose a lot but it will skew the voltage that you think you are
vaping at
If you want a modular unit, I would suggest a
LM2596 step down converter, amps are still a little low though.
The
OKR-Twould be a better bet,
it is fairly simple and rated for 6 amps, for some reason it seems to be a trade off between volts and amps for the
modular units and DIY chips.
Here is a better
switch, it is only rated 2 amps but that is at 48V's so Java says it will handle
higher amps at lower voltages.
IMHO it would be better to put everything on the hand held end. The narrower LM2596 module, a switch,
and voltage meter would all fit in a fairly small project box. ( I am considering putting mine in a polycarbonate
tube to show off the electronics and make the VM visible without having to cut a perfect hole for it )
Put a jack in the box with some kind of breaker or fuse to protect the PC if the PT has some kind of melt down.
Another thing to consider, if you use a dc jack on the PC and the PT, you can use the PT away from the PC
with an
AC adapter.
I hope this helps, and I hope someone will correct me if I got something wrong or backwards.