watching fun fun function today we are
continuing a series where we are
building a Pomodoro button and if you
don’t know what that is or you’re
confused and haven’t seen the previous
episodes you can do so by clicking there
but the goal for today is to I think
we’re gonna press that there and then
it’s gonna make a likely thing there you
go round and round and round and round
here and when it has done that it should
log that to the server let’s get going
okay because I have the memory of a
goldfish I tend to keep a work log and
last time we did this we did an
automated deploy of this thing on Google
container cloud because that was such a
hassle and I did that every time I made
this video just get warmed up I am going
to I’m going to do that deploy now oh I
need to connect to docker you’d have a
doctor terminal one thing that strikes
me when working with this project is
that docker Wow very nice it is also
very slow like it’s with development I
think that one of the most frustrating
things you know when we when we talk
about users we we have this all these
kind of data saying that the user
experience should hit you below 100
milliseconds there’s a study that Google
did that showed that once they made
longer search result they had a lot
lower conversion rate simply because the
the the search results took like 110
milliseconds instead of 90 milliseconds
to load and that made such a huge
difference so we tend to be very wary of
above milliseconds here and there but
when it comes to our own experience our
own development tools we tend to just
thirty minutes here and there whatever
while we’re waiting for that I want to
make sure that we have defined our
current goal and that is gonna be press
a button on the phone and have I can
type go around the clock in quotes and
Oh No okay I think this means that we
can get odds let’s log that logs no yes
okay and now if I press the button yes
yes yes yes yes hahaha it’s showing
things on the screen on the internet
when I’m pressing these buttons that is
why I’m so excited
and that is what makes me a nerd okay
let’s go back to the work log press the
button on the phone and have it go
around the clock and then report back to
server I’m not entirely sure how to go
about this I want as much as possible of
the logic to be on the server but ah I’m
not sure if there is any benefit at all
to that in this point I want I think I
just want to go into the photon right
now and do the around the clock motion
immediately upon the button press and
yeah let’s start there what is this
no it’s particle I own this is a great
okay so I want your house like this
why did it do that how did it Oh what no
I’m flashing it
oh it’s this one and I wanna press this
one it lapses anyway here is on the loop
thingamabob here I want to do something
I want to because when I when I press
like I’m at this logic point here it’s
when I press don’t know it’s flashing I
have to wait for it to flash it because
I accidentally press the the button here
which flashes the thing down from the
Internet to the device that’s what I’m
waiting for
I’m waiting for it to flash and boot the
phone is pretty cool from this wall okay
not doing something did i flash it with
something else
no it’s what is it doing
flashing green okay alright I think this
is the software yeah because when it
boots when it setups here it does this
sweeps function which is down here and
that is what the swipey thing does and
then up here on the button 100 when I
press this button here button 1 it
should oh okay that is this is button 1
okay I want to press the left one the
left button and that is help I can talk
here I want to make the thing go round
so let’s see what are these parameters
this is can I get this bigger for you
guys yes I can not that bit that way
okay so here we have an LED thing yeah
this is this is the first
the first primary here that is the the
number the index of the lead that we
want to light up and this is the colors
so let’s just try this like I want to
light up the first two lands and see
Wow now I’m gonna press this button okay
so that is index 1 and that is index 2
and they are staying lit because the the
old one the old code flashed this one
and then it turned off after a little
while and it did that because I’m
turning the LED number 3 off so it’s
that one but it’s these are number one
and number two I think I’m gonna keep
them green I like the green ones because
it gives a good sense of accomplishment
that’s the point of the Pomodoro timer
it’s supposed to give you a sense of
progression ok so we know how to start
lighting these up because we’re gonna
just go like 1 2 3 up like until we have
it does that for 25 minutes like I
talked what how do we do that
because this this is not like Java
Script this is some C dialect and the
loop here it’s going to be running all
the time so what we’re gonna do is we’re
gonna set this button it’s gonna set
some kind of states how do we do that I
guess can we just declare variables up
here like a rules now not do spin state
I knew nothing about this language so
I’m just winging it completely means
they that’s the basic state does that
work okay right okay can you compile it
yes
all right yes it’s here so that you can
see yes
code verify the great work it’s nice
that would be great work all right
so when I press this button it’s gonna
be change the state to how
let’s call it that and we’re gonna
create a new if here if state equals
counting we are going do you do what are
we doing here are we want to lightly
leads up as we go as time progresses so
the longer from the time we started
counting longer the time has passed the
more laps we want to light up so I think
we need to keep track of when we started
counting
so how okay particle date time current
maybe store when pressing the button we
want to set count start time dot local
and we want to create calculate
difference between when we started and
current time time dot local – the start
em so this will be the difference
between when we started counting and
what the time is now and with that so we
want this to light up let’s the longer
we have the traveled on the journey of
25 minutes but I’m gonna make it 25
seconds for now otherwise debugging will
be strange so we’re gonna say that
Pomodoro signs it’s going to be 25 times
this is this milliseconds or what is it
keep the current time zone in the
correct time zone as second since
January 1 all right so I this is gonna
be second so we want to know 25 second
ok that is seconds and this sense
I like having longer variable names that
and having them to be different this
thing it has 12 police I think so
we are going to like LEDs for number of
LEDs to light
divided by 25 I wonder how this will
round it probably will work see and we
how do you do this
oh let’s just be afforded equal zero
we’re gonna loop here while I equals
number of leads to light and I need I
need I need I need I need something like
this it’s gonna be be led on and it’s
gonna be I yeah so taking the interior
here the law I don’t think we’re gonna
start and yeah I think I need to add on
to that or it won’t work so yeah I’m
just gonna remove these verify yeah it’s
compiling just compile yes
citing what oh I think this is I want
this and nothing okay what is wrong
why doesn’t did how do we debug this
thing I think is there some kind of
print or something particle published
booted can I so these things can I see
them somewhere can i if I click the
I can do this can view this in the
Chairman election uh I have to remember
to delete this access token here when I
publish this video but wait a minute
it has worked now afterwards this is
what we it works it works
I is yes didn’t realize what the
consequence of my code would would be so
now it’s actually as 25 seconds go past
it will it will light up more and more
meds come on there you go okay let’s
change this to yes be 10 seconds or
something
so that comes saner oh saint counting
like 5 seconds and that’s my boot up
it takes a long time this is definitely
not 10 seconds it’s very slow it’s like
more like wait a minute I’m not I’m not
using this variable anywhere I need to
do that okay
let’s flash it and see what what that
does you things mm-hmm now this should
be faster this should definitely be
faster why isn’t it it’s doing what it
should though it is just too small
I’m just watching it because you know I
made this I’m proud of it let’s watch
this stream on the terminal do you like
particle publish and starting counting
so if I had a second person here I am
sure that that person would have spotted
the error but now I’m just stuck on my
own this is if you watched the previous
episodes where we pair program where me
and David Fred programs you’ll see you
see how much more efficient that is
because you don’t get stuck at all for
for for long periods of time which you
this is so embarrassing because you
probably have figured this out like the
minute I started doing this this number
of let’s light is wrong this is what I’m
actually calculating is the percentage
of lights to light or something like
that which is gonna be either 0 or 1
because these are int so it’s gonna be
number of LEDs total 12 these two light
right this won’t work though because
these are int and I want this to be a
floating-point values and I’m not sure
how to convert them to that I’m just
gonna publish this and see what I get
yeah yeah so it does what I I get the
industry who result right but because
these are floats the percentage doesn’t
work I need to make this into clothes I
want this to be a float how do I do this
but I’m gonna try it anyway oh yes it
actually worked
right okay let’s make that Oh Dora six
seconds twelve so one so that should get
us one LED lighting up per second – come
do you yes all right yes we’re almost
out of time we need to do the publish to
the server when you want to publish an
event to the server if number of LEDs to
light equals 12 we want to article
publish this event we want to publish
publish o complete one I don’t remember
what these things are and also we don’t
want to do this a thousand times
so we’re gonna do a Maduro complete
publish true and not see stable that
did something bad expected problem
what is wrong with this oops I can’t do
that in expected primary expression
before equals – oh wait
I mean is code in JavaScript in C++ here
code verified great work awesome
all right going around and when it
reaches the final one it did not or not
equals false if that is false there
right publishing again pressing right
this time
get there get there publish pomodoro
complete please yes now we just need to
have this picked up by the server so I’m
going to go back to Adam and find our
server code we haven’t seen long time we
need to all right so we actually don’t
do much where there we just request the
body out so we should this should
actually already have worked so we can
I would have expected a Maduro complete
here but maybe the service hook template
oh we have to make a we only have a web
hook for the forward event or the button
event so we need to make one more for
that thing okay you know what
that we can only have one web hook per
file and I’ve kind of tied my deploy
script together with with just having
one file so creating several will be
messy I’m just gonna do a dirty one and
call this server event and go – no –
back – oh call this server event there
and I will need to republish this
service hook template I already know
what I’m gonna I’m gonna cheat a bit
copy this cuz I already know what the
IPS paste all of this in here BAM
mmm now particle web for list steal this
here for that end and particle web work
creates what’s called serve this hook
template dot JSON now rule and it’s it’s
in the deploy directory cool we have
created web hook let’s delete the old
web book list what all right there we
are and watch is watching for button and
this is our new one watching for server
event we want to delete this one so I’m
list watching serve air vent now I think
we’re good let’s publish that and see
what we get
yes Pomodoro completes this means that
we actually achieved our objective we
have press a button on the potent and
have it go around top and then server
whoa yes you have just watched an
episode of fun fun function I release
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morning stay curious I am no gum to make some faces