it's mail bag Monday number 48 New Year's Eve edition let's get busy
here in the interests are not being predictable I've decided to go with a
non dark beer this week a local beer of course from farmery this is the great
white north belgian wheat ale trivia hudson bay coastline in northern
Manitoba is home to the world's largest population of beluga whales I did not
know that let's give her a taste yep that is exactly what I would have
expected from a belgian wheat ale that's not bad actually
it's clarifying nicely in the glass holding its head pretty well okay let's
get started with card quantity one nothing else on the back side it's hard
something like no it's nothing like card it's not even plastic sheet it is a
bunch of short DuPont jumpers saying these things just come in handy yeah you
could use wire just plain old telephone wire a cat5 where and i often do a as
witnessed on what is this little buck converter a boost converter or something
but for bread boarding these things just come in handy they're simple they're
easy the color coded not the color coding means a lot to me being you know
somewhat colorblind but the it does help so what do you got he looks like 40 of
them two three four five six seven ten yeah so 40 of them these are the short
ones
what do they call them 11 centimeters 12 centimeters hundred twenty millimeters
probably and I find that those are the size that I run out of first when I'm in
the middle of a project just because yeah they're short and they're handy so
I got more 40-times breadboard DuPont jump wire male male female female female
10 20 30 centimeter jumper cable for Arduino from fashion jewelry ease forty
pieces various different links but I chose the 10 centimeter ones male to
male I actually got these at auction for 80 cents for the pack of 40 the regular
price is buck 49 so a bit of a discount but not too much they're still not that
expensive anyway alright next in let's see if this is anything more interesting
exciting the electronics quantity one feels pretty full I'm thinking there's
more than one in here of whatever it is oh yeah it's a whole bunch of
transistors of some description
these are IR f9 five four zero in and we'd recognize that part number I don't
exactly should try and figure them out or should we just go to the listing yeah
let's try and figure them out this thing is usually pretty good I'm thinking that
it might be a MOSFET
it is it's a p-channel MOSFET specifically five times IRF 95 40 p
channel power MOSFET 20 23 amps hundred volts Wow to-220 I are from servi 2014
somebody have bought from several times in the past so they're selling five of
them for dollar 35 at the moment I got 25 I paid 6 dollars and 73 cents
the current price for five five packs of five is 675 so a couple of cents more
but nothing significant not too much more down here in the description so
since there isn't much information in there we'll get the real datasheet and
find out what's actually going on maximum power dissipation hundred and
fifty watts Wow drain source voltage limit hundred volts continuous drain
current nineteen amps at 25 Celsius or 13 amps at 100 degrees Celsius Wow
that thing is a beast and it claims to work up to 75 degrees Celsius okay it
looks like it wants a little bit higher voltage to turn it on solidly it's not
quite a logic level so I might have to slam it a little bit harder but it
should probably come on illogical yeah so there's the full-on volt heat source
is 10 volts to get 0.2 of an ohm RDS okay what do we have here cable plug it
says just like it's over fed into the package
you never know what you're gonna get so going slice into it okay it's an RF
adapter you use an RF adapter from BNC to I think that's the tiny little
connector that I whose name I can't remember that goes with the
software-defined radio things hang on let me grab it so yeah that is in fact
that meeting connector okay so now I can use antennas and stuff that have B and C
I've already got one adapter for f-type which is the North American cable TV and
antenna related antenna type thing it's a 75 ohm connector and then I've
got these cheesy little antennas that came with the things which fit onto
there so that should give me some variety of ways to get signal into these
little things 15 centimeter cable BNC female jack 2 MC x male plug right angle
RG 3/16 6-inch pigtail b1 okay so MC x male plug is what that little
connector down there is RG 3/16 is this type of cable and everything else is
pretty much self-explanatory BNC is that guy there from Bruce shark - zero zero
one current price is 284 i paid according to my notes two dollars and
twenty three cents which isn't much of a jump not much really to say about it
it's 50 ohm characteristic impedance based on the cable type yeah nickel
plating on the BNC gold plating theoretically maybe a molecule thick if
it is actually gold the male character I'm liking that I'm
not usually one for a belgian wheat beer but this is this is not too bad compared
to something that I've had this could grow on anyway next thing we have is LED
module I always like a good LED module
ok so first of all it's an LCD module but more specifically is an LCD keypad
shield so we have a typical LCD module there are two lines by 16 or 18
characters something like that and then we have left up down right reset select
buttons now looks like a power LED that part I'm assuming is for contrast to
this LCD and it is on an arduino uno shield format slick this seems to be
made from a company called d1 robot I'm gonna have to start with a sketch they
don't sketch from these guys if I can find one or I'll have to reverse
engineer where all the pins go yeah let's uh let's go and do a little bit of
searching and if I can find an obvious demo sketch I'll light this up we'll see
16:02 LCD with keypad shield board blue backlight for it we know Duhamel in Neo
V I could never pronounce that that's the r do not do a robot from oh my god
x lane j 2016 g something like that zoom in on that if you really want to do it
or follow the link i'll just put link to it currently he's selling it for
three dollars and seventy two cents I bought it at auction for two dollars and
seventy two cents basic sixteen character by two line
black on green display but it also says it's got a blue backlight weird you know
is the extremely common parallel interface chipset okay so it's not SPI
you know face code is freely available yeah if you know which pins it happens
to be wired out to hmm time for more research after a short amount of
googling I found this thing on DF robot which I guess makes a certain mind since
since it's actually labeled D robot on the one that I've got in front of me
they're selling it for nine ninety at the moment if you want to buy it from
the original seller people probably created it maybe who knows who these
Chinese things anyway so that's that's it right there pretty much and I
scrolled down to find some information about it the and in their wiki they have
some code which is awesome so I've copied and pasted this code straight
into the IDE and dumped it into an you know that it happened have lying around
and slam this thing on top of it and well let's take a quick peek at the code
here so it uses the crystal library pins eight nine four five six seven eight and
nine are the reset and enable I think it is and four five six seven of data pins
and then it's defining the buttons and stuff like that this is interesting the
buttons aren't on digital pins as you would assume they are in fact on a
single analog pin so there pulling a resistor or I don't know
exactly I couldn't see it on there seems to be there's a voltage divider that
they're cutting in or something like that anyway
the voltage there's the the button definitions anyway regardless and then
just a switch case if this then print that if this then print that blah blah
blah all the way down so let's uh oh and it's also printing a one second timer
since power turned on they're printing every second and then just printing
stuff on the screen let's go and take a look at it and see if it actually works
here it is all switch the power onto it and it says push the buttons now getting
this thing running it confused me for a little while but then it occurred to me
let's just check the contrast and it was fully at zero when I first got it
cranked the contrast down so it was looking like that but should only change
hands here so you can see what I'm doing if I bring the contrast back up to where
it's supposed to be multiple turns there we go so that's threw me off for a
little while but anyways so push the buttons so select button left up down
right this reset button is not a button that I did enough eyes itself as reset
it in fact is the processor reset I pushed that little reboot like that that
is the same as pushing this button on the uno like that which is a little
awkward if you want to turn this into some kind of a game pad toy thing or
whatever or remote control unless I suppose you pad it out and make a little
shafts that push down through your 3r casement onto those buttons
but anyway that could that could come in handy for some sort of a project or
other if nothing else it's a it's a handy little display although saying
that it pretty much obscures most of the rest of the pins some of them are broken
out up here what is that d1 error sorry D 1 2 3 4 5
6 7 although 4 5 6 7 are in use by this guy
here and the analog pins are available down here as well except for a zero but
that's okay because it's being used by these buttons anyway you got time for
one more here this is a whole bunch of letters and part numbers charger is what
it says it is fairly well wrapped anyway oh it's a little power bank kit well
actually it's a power bank is not really much kit involved here is there it looks
like it takes to 18 650s in parallel there's an output voltage and an input
voltage and an LED and it's not hurt by being dropped onto the floor okay let's
grab these here's some that I salvaged from a laptop earlier so let's find a
couple that are fairly close to the same
let's see those two are pretty close just because oh yeah that one I sort of
look inside of but that's okay so theoretically you just put these guys in
here in parallel
and it should light up let's grab something for it to put on the charger
doctor yeah let's grab that to show me some vaults it's not showing any gold
it's okay there now we've got some draw 5.08 of
volts so I put one like that 20 milliamps 19 million
that's reasonable for an LED hey I've got one I got one of those so USB test
loads around here that I haven't had a chance to use any real testing well let
me break that out so here we have the Ruby ding USB load intelligent load so
I'll plug that in it looks like it's already set for 40 milliamps so I'll
start cranking up the load there's 100 milliamps still at 5 volts let's just
crank up the current here doing 60
okay there's 500 milliamps still nicely it five vaults 750 million amps oh is
editor flicker on this camera and still at 5 volts 1 amp still at 5 volts oh
right that's what 5 watts 5.0 powers duh 5 volts running up 1 and 1/4 amps 4.9
vaults is starting to drop off so let's leave it in voltage mode and just start
cranking keep cranking the current up here okay there just dropped the 4.8
volts 1.4 3 amps let's just take it to 1.5 and see what happens
1.5 amps 6.7 watts 4 point 4 volts so it's pretty much dropping off at 1.5
amps but that's not bad just for a cheesy little power supply here mini USB
port 2 times 18 650 battery charge holder power bank box shell case DIY kit
from VIP 902 9 can't price is well it varies I paid two dollars and 42 cents
for the one that I got depending on the color that you get it's either two
dollars and 40 cents or two dollars and 53 cents or two dollars and 46 cents or
two dollars and forty cents or two dollars and 46 cents how do you make a
do a power bank prepare - 18 650 slide out the keys bottom installed 1866 these
inside the box close the box enjoy your DIY power bank now right then
colors yeah sighs yeah 5,600 million powers that's going to depend entirely
on which 18 650s you put in there isn't it
charging input 1 point 2 amps charging output 1 point 2 amps after discharging
it I guess you should also check and just to see what the charging current is
so I've got this guy set - oops - 5 volts and current limit at 2 amps I
don't think it's going to get there but we'll find out so focus is that in and
the cool button it's charging at 5 volts and 200 milliamps hmm these things have
been sitting for a while so they're probably a little bit discharged
actually you know let's stop that and just find out what the batteries are
actually at shall we in parallel I'm not going to be that
concerned oh they're at 4.15 volts okay so they are fairly close to fully
charged I'm gonna see if there's any in here that are mostly discharged okay I
found a pair that are that are sitting below 4 volts so I'll toss them in there
reading what 3.8 so let's see what it takes to charge them there we go
charging it with nine hundred milliamps okay that's that's entirely reasonable
alright here is today's mailbag monday items last mail big monday of 2018-2019
begins tomorrow let's check the shipping times on these
guys the dupont cables took six weeks to get here the MOSFETs took two months
this BNC to MC X adapter took seven weeks the LCD / keypad shield took five
weeks and the slowpoke did you ER this to sell power bank kit took four
whole months to get here what are you gonna do that's just the randomness that
happens so this is a ditto again shops talk shop stock RF what is that thing
called software-defined radio adapter um I got a couple more coming and then I
think I'm gonna start playing with that a little bit I've played with it a
little bit down here in the basement I'm not getting a lot of signals anyway so
that's why I'm getting these antenna adapters Powerbank always handy to have
a power bank and this guy I don't know I got a good deal on it but it'll probably
work its way into various little projects and stuff along the way thanks
again for tuning in every week Wow every second week anyway um I for the whole
year I mean I I really appreciate you guys showing up and and what you gotta
see down in the comments is always interesting often informative sometimes
humorous I just I I can't express how much I appreciate you guys showing up
and and clicking the like button and subscribing and doing all those YouTube
things but mostly showing up in the comments and letting me know what you
think of what's going on here and of course the guys in over patreon who go
that extra mile and throw a buck in the tip jar now and again helps me keep me
in beer and helps pay for a little bit of this stuff those guys are awesome and
I appreciate that too well uh I will I guess talk to you in 2019 thanks for
watching
Happy New Year whoo
you
here it is
For more infomation >> 【ASMR】 桑、あおまめ、海ぶどう、アロエ、オレンジ、イチゴ、唐辛子、サボテン、きゅうり 食べる (咀嚼 音 ) - Duration: 3:09. 
For more infomation >> 【咀嚼音】Fluffy Waffles ASMR 大食い モッパン No talking 【食事動画】【飯テロ】 - Duration: 2:57. 
For more infomation >> Elliot Hsu - Yumenokatachi (feat. Yuca) - Duration: 3:57. 
For more infomation >> Worauf freust du dich an Silvester? | Tiere bis unters Dach | SWR Kindernetz - Duration: 0:40. 
For more infomation >> Библия. Ветхий Завет. Левит 1 глава. - Duration: 3:37. 
Không có nhận xét nào:
Đăng nhận xét