Here is another kit
I got from Wish.They have a link to some
directions, but It looked pretty suspicious being a dropbox and all,
so I skipped that. The board itself is really all you need. The
silkscreen has all the values on it, if your a novice the resistors
are going to flip you out a bit. Not often you see .05% in kits like
this but From what I can tell of the circuit it's warrented. The
system itself can be powered by 9v or by an outlet, and you put a
device on the test pad, or screw terminals, and it analyzes the
device, telling you the Uf, and the B value, as well as the pinout,
and if it's a NPN or PNP. I'm not positive what I tossed in there to
test it with, I”ve a crap ton of transistors right now. I bought
two of these, one for me and one for the local Makerspace (they need
one fo-sho) Looks like a handy little tool for the shop, cheap enough
if I break one I'm not too sad, and it's easy to put together if you
pay attention to what your doing. As for Hackability, it runs on a
ATMEGA328p and standard LCD screen. I'm sure with some clever
Googling there is some code for this somewhere, I'd say, hack away.
When I first put it together it didn't look like it was working. I
adjusted the contrast till I saw 'timeout' tested again and it worked
fine. It doesn't leave the values up for very long. I'd snap a pic
of it so you can look at it later for reference. I'd love a pot that
you can adjust the hold time on the results.
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