it's the first mail bag Monday of the year welcome back you didn't think I
was gonna stop doing these did you okay the first thing is cell phone
accessories nothing else wire really tiny wire huh oh I remember so this is
super tiny fine wire let's get in really really close to it here I mean that's
super fine where's millimeters here this is I
believe a boat oh this one's got we're cages on it doesn't it it's at least 28
gauge it might be lighter but this stuff is intended for wire wrapping Andreas
the guy with a Swiss accent a couple months back did a little bit of a
dissertation on wire wrapping which is an old point-to-point prototyping method
and this way would basically be wrapped tight around square pins on the back of
component sockets and components it's not really done that much anymore but
the reason that I got this and in a bunch of assorted colors is to use it as
essentially bodge wire on on circuit boards there is one that's got some in
it this thing here I had to do a little bit of barging on basically because they
buggered up the the tracks when I was testing and troubleshooting and whatnot
so I ended up just using bits of component lead but the neater way to do
it is with insulated where specifically really tiny
insulated wire the other place where we've seen wire pretty much this skinny
is several months ago in the mailbag I got these which are surface mount LEDs
soldered onto wire tails which I'm intending to use at some point in model
railroading projects because they are just so darn tiny they can be used for
marker lights stuff like that ten pieces wrapping wire tin plated copper wire
part number DM - 30 - 1,000 to 38 WG 3 meters of lengths I got these from 22
new century currently they're selling for 312 American or for 26 Canadian and
currently it has some shipping price on it but I paid two dollars and 48 cents
American with free shipping nothing really to say about it plastic and PVC
and tin plated copper 25 grams 10 pieces colorful wrapping wire okay
next thing in is do we want to know what they tried to call it yeah doesn't
matter let's just get him we'll find out the old-fashioned way some eye sees okay
what are these I sees these are OPA 21:34 PA which if I remember correctly
are op amps or some kind of amplifier chip let's go look at the listing and
see if that jogs my memory five pieces op amp IC beurre Brown / BB / t I dip
eight OPA 21:34 PA OPA 2134 PA g 100% genuine
and you from polida 2008 free shipping I
paid two dollars and 87 cents or four people for American dollars two dollars
and ten cents and what I was looking this up it jogged my memory this is
going to be for a headphone amp project based on this si muy headphone amplifier
pocket headphone amplifier I've even gotten actual Altoids team to put it in
but the Wikipedia page isn't where I heard about it originally I heard about
it from from Dustin Watts Channel he's doesn't have a huge pile of videos but
that those that he does are quite interesting he's got a series on
building this little amplifier it's it's pretty straightforward if you want to go
and check his channel out but anyway that's uh that's what I got these for
okay next in it says cable and in some numbers that's the Lord hit wire
okay these actually have there's another one in there all that's in there yeah
only three of them okay what are these little guys a module obviously with
cables on it so I guess I technically sort accounts I don't know what are we
going on here we have an inductor and a capacitor that just screams power module
of some sort we have four diodes let's in let's see out this would be easier if
I zoomed in wouldn't it so there's four diodes over here there's another one
what it looks at no it's called a diode so it must be a diode what have we got
in here couple of resistors a capacitor and an IC
which he is apt for 100-105 oh there's a clue LED coat okay so
they're written like wires your outputs does this side say anything not really
okay no let's uh go do a bit of looking up constant current LED driver DC 12
volts 2 DC 3 to 12 volts nine hundred milliamps for 10 watt high power LED
from City Beauty 88 the current price from this seller for one is 599 that's
not what I paid I've got the three of them for 297 and if you look at other
listings you can find them for me a relatively cheap so what does it say
here 10 watt LED driver DC input 12 to 24 volts non-waterproof
yeah no kidding output 3 to 12 volts but it's constant current at nine hundred
milliamps storage temperature doesn't matter for 110 watt LED in series and 3
in parallel hmm don't know if I'm going to use it for that or not hey I got some
10 watt LEDs and the last meal bigger the one before that hmm alright next in
its LED diodes hmm as opposed to non diode LEDs I don't know oh it's a bunch
of these little thang these are 1 watt LEDs I've got some more of these around
here somewhere don't I oh yeah actually I've got some one a cheesy little ring
light thing that I built a while ago hang on yeah this cheesy little one over
here I haven't used it for a while because it didn't really work and it
kind of muffled the audio and I kind of got in the way
but it does sort of work and I'm just using a constant voltage kind of power
supply with a big beefy resistor in series two to let the current on them
those ones look hmm natural height maybe warm white not
quite sure what these ones are but I guess we can put them to the test pretty
quickly can't we ten in pieces 1 watt cool white thousand 10,000 to 15,000 K
high power LED chip beads with PCB light USA I got them from keg hog I couldn't
find the exact listing that I bought them from but this is an auction that
he's got running right now well when I say right now it'll be expired by the
time you guys see it but the current starting prices dollar 35 and that's
what I paid for mine for the ones that I got is dollar 35 Canadian air 99 us but
he said it seems like he has these same ones on for auction regularly so that's
cool I'll link to this auction even though it'll be expired by the time you
guys see it and of course free shipping now he's saying that he ships from
California which is kind of bullshit because as you saw on the package this
clearly came from China well here we go 3 point 4 volts max 3.6 okay well that
go to something go by when we're testing that new ease
let's just see what these look like and it says the cool whites yeah I don't
think this guy shipped from California mr. dongjin okay
so I've got three and a quarter volts more or less on here which should be
conservative and I've got it set twine behave
it's at the current 150 milliamps which is nowhere near the limit of these
things but I just don't start conservatively so I'll turn that guy on
and play some volts to this yeah that's cool wait alright I got to come up with
a better way of doing this for you guys I don't to put sunglasses over it
because that might color color it a little bit but I think I think maybe if
the lights reflecting off something white so you can see that that looks
pretty cool white kind of bluish and what kind of current was that drawing
was that limiting yeah that was hitting the current limit what was it pulling it
down to 2.83 okay so let's turn the current limit up
to 100 milliamps we're still current limiting at that
I'm still pulling it down to 3.0 so we can go higher
try 250 milliamps that's not going into current meeting so it's drawing 189
milliamps and it's pulling it down - oh it's not pulling it down okay
let's crank the voltage up then 3.40 yeah and that's current limiting that's
current limiting at 255 million more or less that's not even getting warm okay
so that's reasonable 250 milliamps at 3 point 4 volts
those are nice and bright actually not sure what I can use them for that's not
the point I got them because they were on auction for cheap but it's always
good to have some bright LEDs around here for a variety of reasons and the
last thing is also an LED module according to that and being so ginger
cutting all in the heads of package because I don't want to cut into
whatever is in there because they're not always what they seem to be oh it's an
LED ring module now that I know how it is I can cut aha this is another
neopixel or ws2812 LED ring how many are on here I've got some eight pixel ones
but I I think that's the first 12 yeah I do have one eight pixel and I don't have
any a bunch of them now I have concentric rings nice so I think I've
talked about these things before basically just takes three pins to drive
from power ground and a data a serial data that's clock
from saying arduino or something so let's uh let's go check on what this is
RGB LED ring 12-bit ws2812 5050 which is the size of the only piece RGB LED +
integrated driver module for arduino from Sheng long C currently selling $4
73 American or 236 Canadian I paid 273 when I bought it so it's even a better
deal right now and free shipping of course you can also get these things in
in different sizes you can create concentric rings out of them like that
so so far I've got the two rings you can get 616 is the next one up you actually
get some that are in a 60 LED ring configuration which some people have
used for a clock module which is kind of a cool idea what does it say here 50
milliliter 6 grams 4 to 7 volts ideally 5 single air communication LED driver
trip ws2812 B okay here's the stuff from today's mailbag in all its glory the
pixel ring ya ws2812 ring took one month to get here these op amps my notes took
seven weeks these LED drivers which I think you're gonna come in handy
where are they here they took six weeks to get here the wire wrapping where 30
gauge Lodge where whatever you want to call it that took three weeks and that
was the speed winner this time and bringing up the rear is the LEDs which
took two whole months oh yeah the listing called them like 10,000 Kelvin
color temperature that's bullshit the bag says that there are 6000 6500 which
is a lot more reasonable number just can't trust anybody these days how
I probably made some mistakes who knows thanks for watching I
appreciate it if you want to talk about all this stuff or what happened or
what's going on please leave it down in the comments thanks as always to my
patreon supporters who help help pay for some of this stuff that shows some of
the mailbag supports my bad habits although West's bad habits today since
I'm on call this week for work mail bags will continue through the year they're
going to be happening back on the normal schedule of every second week December
is special every year I do them once a week in December but man I'd go broke
even with the help of the patreon guys if I was to do that every week for the
whole year and you guys probably get bored because
I'd start running out of interesting things to start buying crap thanks once
again for watching I will talk to you later