tonight's mail openings are accompanied by non-such brewing's Baltic Porter since
they don't say very much about the beer itself on the can I'm going to take this
opportunity to go on a little aside here before we get to the actual meal opening
none such Brewing is named for the non-such sailing ship
which was originally built in the 1600s and sailed between North America and England many many times
in the 1970s an exact replica of that non-such ship was built and the replica full-size replica
sailed over 14 000 kilometers both salt and fresh water before finally ending up in the Manitoba
Museum which is about two blocks away from the brewery where the non-site brewery happens to be
how do you get a full-size Merchant sailing vessel inside a museum oh you build the museum
around it you literally build the building around it I'm going to leave a link down
below to the museum webpage because I think it's a really cool story and an interesting
piece of local history anyway to the openings the first thing in this is connector adapter
let's use the correct side of my scalpel blade uh what do we have oh
these are more USB C male connectors on little circuit boards and similar to the previous ones
that I got these have uh voltage and ground and then the data plus and data minus pins broken out
to the edge unlike the ones I got last time these ones don't have any resistors across the data
lines to indicate that it is a power connector as opposed to a data transfer connector five pieces
USB cables 14 pin connector metal type c connector breakout PC board yep that's exactly what they are
as described nice and there is actually the position for the resistor on there so I could
drop one on if I wanted to but uh if I want to use these for data then I don't need it not
much else to say about it down here uh rated current 3 amps D plus D minus ground and yeah
right onward this one doesn't say what it is because as usual as is often the case it came
through a Canadian reshipping Warehouse so we'll just have to figure out what it is the hard way
oh what sort of a module one eight pin chip couple components on that side we
have voltage ground SEO SDA okay and Os uh chip select maybe and on this side we have
ground a zero and VCC ground A1 and ground A2 so I'm thinking this is probably
a uh an analog digital converter three Channel analog to digital converter
hmm it could come in handy on some of the ESP chips for instance that don't have a
lot of analog pins on them I think they most of them only have one analog input so this
this could be useful the eight pin chip on this side is an lm75b not a part number I'm
familiar with but let's go and look for the listing lm75a temperature sensor high speed
iqc interface development board for Arduino the options are lm75 a blue purple and red
okay what's the difference okay that's not the one that I got it's definitely not the one that I got
that kind of looks like it okay so now I'm confused if it's temperature sensor why
does it have those analog inputs ah they're address pins okay that makes more sense okay
so this claims and accuracy of plus minus two degrees between minus 25 and 100 degrees Celsius
or plus or minus three between minus 55 and 125. so if I'm going to use these for outdoor projects
I am going to get down into that range between minus 25 and minus 55 Celsius
um we routinely hit minus 40 Celsius for a few days every winter
and obviously the outdoor temperature is not going to get up anywhere near here I think
35 is sort of the typical high that we see so oh plus minus two degrees that's not bad it's
not lab grade but for gee what temperature is it outside that's well and truly good enough
oh and when I was uh putting the packaging away I noticed there was also some little
surface mount chips in the same package obviously from the same seller which are more lm75a I guess
it should be no surprise that the description is all the same because it came from the same seller
um these were 2.54 cents Canadian for the five of them plus a buck 69 shipping but
they combine shipping with the where are they this guy here which let me see a dollar 72 so
yay for that right next thing in it says scraper hmm scraper interesting oh
oh
those are like artists pellet knives okay oh I know why I bought these back
when I bought these uh Chuck hillebuck uh his YouTube channel is called chap
um he was showing off some similar palette knives that I mean he was picking up on Amazon
but whatever they're just a thin little knife too and he was planning on using them for uh getting
under 3D prints to separate them from the print bed on his printer because you know he's mostly
a 3D printing channel so some of these are thicker than others more flexible some of them are thinner
and I figured I'd get the assortment pack rather than just a single one and I think that one is
the thinnest one can you see it flexing yeah whereas this one is a fairly thick so I will
uh I will try these out on a 3D print and let you know how well they work for that purpose
I hope they'll work well um but we'll see of course I bought the cheapest ones available on
probably eBay I'm thinking let's go and take a look yep on eBay I thought so seven pieces
stainless palette knife scraper spatula set for artist oil painting knives I bought the
cheap plastic ones you could also get Redwood or crude wood seven dollars and 32 cents for the set
of seven with free shipping what do we have to say about them brand new high quality sure if
they always say that uh oil painting scraper the blade is stainless steel and not easy to rust and
has a long service life but it is thin and white and has good toughness sure okay second last one
in again through the Canadian reshipping Warehouse so it doesn't actually see any Customs lies on it
oh well that's well packaged bubble pack inside bubble pack
so it's 10 pieces of PCF eight five seven four P did anyone recognize that part number doesn't ring
any bells in my brain but I'm sure once I look it up I'm hoping I'll remember why I ordered them and
it's always good to have a bunch of random chips around here to inspire you but I'm assuming that I
had a specific reason for these in pieces pcf8574p dip 16 and x p Phi remote 8-bit i o expander I see
Oh okay that's cool I got 10 of them for 6.77 with free shipping woohoo didn't say much more
about them down here right and a quick search for the data sheet comes up with this so we have our
I squared C interface here we have three address lines we have an interrupt pin VCC and ground and
eight i o yeah so there's a rate pulse and a read pulse okay that's cool well that should
be fun to play with and a quick search shows that there is in fact an Arduino library for it
which will also work for pi Pico and rp2040 esp8266 STM esp32 oh cool okay when that links
to some documentation from the guy that wrote the library that's handy so I think I will have to do
a little bit of uh I remember reading up on this thing and play with it at some point in the future
and then try and remember what project I had in mind for them last thing you know which
is going to be a tremendous mystery it was sent anonymously to my PO box
and judging by the where it was shipped from this is probably something that was drop shipped from
either eBay or AliExpress or one of those so let's get in here and see what I have been sent
huh the packaging game is not perfect but again this came from whatever this customer
service department is so I don't know who the actual seller was or the and I don't know who
ordered it for me but it looks like I've got five of these little modules what do we see in here we
have an inductor we have a capacitor we have a diode we have a chip and I have a potentiometer
we have V in plus and minus marked over there and we have plus and minus Mark over here
that looks to me like a voltage converter module the chip that this is based on is an xl1609 so
yeah I this looks familiar I'm going to go to no limb and say that it is in fact the DC to
DC converter I just don't know if it's a buck or a boost okay so it is in fact the voltage
converter this one is a buck converter right yeah that looks very much like the component
layout that we've got on the board so yeah let's give that a shot I guess I suppose the obvious
way to check is just to uh throw some voltage at it and see what comes out the other side
so power on 5 volts coming in here and it looks like five volts coming
out the other side so what happens if we adjust the pot nothing that direction
dropped out for a second that doesn't tell me anything let's crank up the input voltage here
if you eat volts yeah 7.9 close enough and just do anything now
okay just to make this easier on myself I soldered some header pins onto it and it occurred to me
that this thing probably needs a load so I threw 100 ohm resistor across the output side I got 12
volts coming on the input side and now if I adjust the part I can get my screwdriver in there and
there now we can get various voltages cool so with 12 volts in get the 1.3 1.2
1.27 is the lowest output and of course if we crank it right up we should we get pretty much
the full 12 volts minus a diode drop so those I think will be right properly handy to add
to my accumulation of DC to DC converters because they are just a super super useful
little module to have around anyway let me clean this up and we'll wrap up here
well that was fun I'm sure I'm going to uh find some project uses for many of these
things and I have to figure out I have to go looking back through my notes or my memories
or my YouTube watch History or something to figure out what I had in mind when I ordered
these multiplexers and these temperature sensors the temperature sensors I think I have an idea
um I've been mowing around in my mind for a little while to do a indoor
outdoor temperature monitoring for my garage using Wi-Fi because I got Wi-Fi at my garage
um I've been thinking that might be an option to do it again because most of
the Wi-Fi enabled chips don't have more than one analog input pin then I'm going to want
something that's got a digital interface and these might just be the ticket not sure um
these USBC connectors always useful things to have around these pellet knives well I've started a 3D
print so when that is done I will insert footage here of me testing to see if I can use these and
if they're as slick as uh what Chuck suggested they are that picks up the prime line pretty well
as I get under there not really let's try this skinny one then hmm
that's not getting under there
all that effectively yeah I know my bid's dirty that's a bunch of uh of glue stick on there hmm
Chuck have lied to me I wonder if this will just break loose like that
okay well it seems to sort of work for thin things but something that's not flexible like
a big chunker like that uh cable hook not so much oh well they were cheap I guess it's time for all
the thank yous of course thank you to my Anonymous bin Factor who sent these DC to DC converters to
my PO Box I always appreciate getting surprises in the mail like that thanks to my patreon supporters
and my YouTube channel members who financially support the channel and help keep the mailbags
rolling in and equally importantly help keep my beer fridge full and of course thanks to
all you guys for watching every week and and commenting and just being there I appreciate
it and that's the kind of encouragement that keeps me doing these things I will talk to you
later oh questions comments down there you knew that already it's YouTube coming you know what
goes on down down below there's things to click on there's you know thanks talk to you later