Saltar navegación

Activa JavaScript para disfrutar de los vídeos de la Mediateca.

Arduino: serial II (native speaker) - Contenido educativo

Ajuste de pantalla

El ajuste de pantalla se aprecia al ver el vídeo en pantalla completa. Elige la presentación que más te guste:

Subido el 20 de marzo de 2022 por David G.

49 visualizaciones

Más información Transcripción

Descargar la transcripción

Hello. In this exercise we're going 00:00:00
to continue studying how the computer can 00:00:07
send and receive information from the arduino 00:00:09
board here on the screen you can 00:00:12
see the circuit we're going to use 00:00:14
we have four LED connected to the 00:00:16
usual connectors 00:00:19
thirteen twelve eleven and ten we are 00:00:20
going to use digital outputs and every 00:00:23
LED is connected to a two hundred 00:00:25
twenty ohms protection resistor so nothing new 00:00:27
for the moment we've done that before 00:00:32
let's go to the code and have 00:00:34
a look 00:00:36
this block here read serial monitor is 00:00:38
a new one this is the purple 00:00:43
block which means it's from the input 00:00:45
library and it means that the arduino 00:00:47
board is reading from the serial connection 00:00:50
from the wire that is connected from 00:00:52
the usb that is connected to the 00:00:54
computer 00:00:56
so we will have a variable that 00:00:58
is called 00:01:00
serial, "serie", because I just want 00:01:02
to choose a clear name so we 00:01:06
take the value or the number from 00:01:08
the usb wire and we store it 00:01:09
inside the variable and now I'm going 00:01:12
to use this variable to control the 00:01:15
arduino board here for instance as an 00:01:17
example if this variable 00:01:20
equals one then thirteen will be high 00:01:22
so it means that the red LED 00:01:26
will shine so let's have a look 00:01:28
and start the simulation 00:01:30
nothing happens while remember that the serial 00:01:35
monitor is down here and to send 00:01:37
variables with a number we have to 00:01:39
type down here in this box 00:01:41
so if I type one and I 00:01:44
press enter 00:01:46
nothing happens because there's a problem 00:01:48
this block is not the right one 00:01:52
if you want to read integral numbers 00:01:54
there's a problem with the 00:01:55
simulation but it's not a big problem 00:01:57
we can solve it by changing from 00:02:00
blocks to text 00:02:02
now notice that when we want to 00:02:07
change from blocks to code we will 00:02:08
not be able to come back to 00:02:11
the blocks so when we change we 00:02:12
just have to be certain that that's 00:02:14
what we want but if it is 00:02:16
we click continue 00:02:18
and then here we will have our 00:02:24
code 00:02:26
so right here this is the function 00:02:31
we are using to read serial equals 00:02:34
this function so here instead of using 00:02:37
serial read we are going to use 00:02:40
a new function and type in it's 00:02:42
called serial 00:02:46
parse int 00:02:48
if you have any problem just typing 00:02:51
in here try it a second or 00:02:53
a third time because sometimes you can't 00:02:55
get it to work the first time 00:02:57
for some reason so keep trying 00:02:58
so here we have the new code 00:03:03
I have only changed the function we 00:03:05
using to read the number and now 00:03:07
I'm going to start the simulation again 00:03:09
and now if I send number one 00:03:13
down here 00:03:14
the LED shines 00:03:18
okay that seems really simple so your 00:03:20
exercise is a little bit more complicated 00:03:23
than this one you will repeat the 00:03:26
code remember you can stop the video 00:03:28
and go back if you need you 00:03:31
will read the variable the same way 00:03:33
and you will add several blocks for 00:03:35
switching all of them on individually 00:03:37
you will have four numbers to switch 00:03:41
them on and all four numbers again 00:03:42
to switch them off 00:03:45
remember that the serial monitor is here 00:03:49
okay 00:03:53
down here so for example you can 00:03:59
use one two three and four to 00:04:01
switch them on 00:04:06
and then maybe you can use five 00:04:08
six seven and eight to turn them 00:04:10
off whatever you want these are the 00:04:12
orders that you're sending through the usb 00:04:15
if you can instead of repeating the 00:04:18
blocks you can just copy and paste 00:04:20
this part here 00:04:23
this is the part that you can 00:04:26
duplicate to reproduce the different possibilities 00:04:27
thirteen is the number of the connector 00:04:32
here instead of high you can use 00:04:34
low and one here means the number 00:04:37
of the code we use to send 00:04:40
information so you can copy and paste 00:04:42
this part of the code if you 00:04:44
want to 00:04:45
you will have to go back to 00:04:47
the blocks program a new circuit and 00:04:48
then create a new code or you 00:04:51
can copy and paste this part however 00:04:53
many times you want 00:04:55
but before I finish I want to 00:04:58
show you the exercise in real life 00:04:59
so here I have copied and pasted 00:05:02
my code and I'm going to upload 00:05:04
it to the computer and check that 00:05:06
everything is correct 00:05:07
so upload okay everything works now I 00:05:10
upload it to the arduino board it's 00:05:14
uploaded and I go to the serial 00:05:17
monitor here so I'm going to send 00:05:19
my commands 00:05:22
the first one is thirteen just cause 00:05:24
I'll start with that one 00:05:27
and the first ltd is shining what 00:05:30
happens if I type twelve 00:05:33
now the green one is shining and 00:05:37
if I type eleven 00:05:39
the yellow one shines now if I 00:05:43
type one hundred and thirteen 00:05:46
the red one turns off 00:05:51
one hundred and twelve 00:05:53
the green ones off and one hundred 00:05:57
and eleven 00:06:00
the yellow one is off so the 00:06:02
interesting thing about this here is that 00:06:04
I can control the arduino board from 00:06:06
my keyboard this is the most amazing 00:06:08
thing the point of this and you 00:06:10
can see that it works in real 00:06:12
life so you will have to do 00:06:13
something like this programming orders to switch 00:06:15
all the LED on and then to 00:06:18
switch all of them off 00:06:20
if you have understood the exercise with 00:06:22
one LED switching it on 00:06:24
then you should be able to have 00:06:26
enough information to replicate and finish the 00:06:28
rest of the exercise okay good luck 00:06:30
Idioma/s:
en
Autor/es:
David Gonzalez Arroyo, Alyssa Fantel
Subido por:
David G.
Licencia:
Reconocimiento - No comercial - Compartir igual
Visualizaciones:
49
Fecha:
20 de marzo de 2022 - 19:09
Visibilidad:
Público
Centro:
IES MARIE CURIE Loeches
Duración:
06′ 35″
Relación de aspecto:
1.78:1
Resolución:
1920x1080 píxeles
Tamaño:
67.05 MBytes

Del mismo autor…

Ver más del mismo autor

EducaMadrid, Plataforma Educativa de la Comunidad de Madrid

Plataforma Educativa EducaMadrid