Video tutorial displays NEXTION

ekrzychoooo 33609 255

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#1 09 Feb 2018 12:57

Hello.
A new video guide for NEXTION displays is being created.
I invite you to Youtube:
Playlist

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ekrzychoooo ekrzychoooo

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ekrzychoooo wrote 279 posts with rating 70, helped 24 times. Live in city Pszczyna. Been with us since 2010 year.
#2 09 Feb 2018 13:10

gulson gulson

System Administrator

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#2 09 Feb 2018 13:10

Write something more (what kind of display is it, what is good in it, what can be used for), because for now it looks like an advertisement for your channel

#3 24 May 2018 18:28

ekrzychoooo ekrzychoooo

Level 17

#3 24 May 2018 18:28

The following parts have been released so far:

TOPIC	Arduino	LCD
INTRODUCTION
BUTTON - 1
BUTTON - 2
TEXT - 1
TEXT - 2
System init
NUMBER + TIMER	NexTimer, recvRetNumber, NexTouch, attachPop	number, timer, get, printh, if-else, font
TIMER + MENU		- BUTTON - TEXT - TIMER - operator if - zmienne systemowe SYS0, SYS1 - array component b[id]
NUMBER	- biblioteka SODAQ_BMP085 - setValue - NexTouch - obiekt NexNumber	- pole number - pole text
ZMIENNE SYSTEMOWE	- getValue - setValue - setText - sendCommand - recvRetNumber - obiekt NexVariable - NexText object	- DP system variable - NUMBER field - TEXT field - get command - page command
SYSTEM VARIABLES DIM		- system variable dim - timer - NUMBER element
SLIDER	- NexNumber - NexSlider - gestureValue () - setValue () - atachPop ()	- SLIDER item - NUMBER element - send event
PROGRESS BAR	-NexProgressBar - setValue ()	- progress bar - timer - numeric field - error codes
CROP
HOTSPOT		- HOTSPOT - picq - tsw - xp - number
PICTURE		- PICTURE - TIMER - SYS VARIABLES - BUTTON - VIS
GLOBAL VS LOCAL	- nexNumber - getValue - setValue	- NUMBER - BUTTON - VSCOPE GLOBAL LOCAL
FLOAT ds18b20	- nexText - setText - getText - memset - toCharArray - float to String - toFloat - DS18b20 - DallasTemperature	- NUMBER - TEXT - PICTURE
FLOAT b		- user variables - cov - number - button - text
SLEEP	- sendCommand	- sleep - ussp - thsp - thup - dim - keyboard - number - text - button
GOSUB DROP-DOWN MENU (live)
TAB MENU
PYTANIA ODPOWIEDZI MEMORY SIZE #23 (live)	Apetyt na ram obiektów nextion
Protect Page #24	- page - click - vis - timer - variable - button element - txt element - numeric keyboard
PYTANIA ODPOWIEDZI #25 (live)	- dsbutton - debuger
WAVEFORM LIS3MDL #26	- waveform	- nexwaveform

#4 25 May 2018 20:13

kaino kaino

Level 12

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#4 25 May 2018 20:13

Hello, I have a question, how to send commands with one button to activate several dual state buttons at once?

and will the arduino read that the state is low for, for example, several relays?
#5 25 May 2018 21:08

ekrzychoooo ekrzychoooo

Level 17
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#5 25 May 2018 21:08

Hello
One command is unlikely to succeed. There is a trick that can be used:
create a Hotspot, e.g. m0 with the size of 2x2px and the code in it

Code: text Expand Select all Copy to clipboard
bt0.val=1 bt1.val=1 bt2.val=1 bt2.val=1

And with arduino send a click code to click m0.0
In the film Link I showed how to use Hotspot in an unusual way

Quote:
how to send commands with one button
I do not know exactly whether it is for LCD or arduino with LCD.
#6 26 May 2018 04:30

kaino kaino

Level 12

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#6 26 May 2018 04:30

Thank you for the answers, is it possible to call such a function by entering the page, e.g. page 1

Already translators, I would like the display to start with some informational page (welcome page)

and after going to the next page it automatically turned on two relays, but that they were all the time high until the knock, I will not turn off the power
#7 26 May 2018 06:27

Slawek K. Slawek K.

Level 35

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#7 26 May 2018 06:27

Very good guides, I use these displays in my projects and I have used these guides several times.

Greetings
Slawek
#8 26 May 2018 11:23

ekrzychoooo ekrzychoooo

Level 17
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#8 26 May 2018 11:23

kaino wrote:
Thank you for the answers, is it possible to call such a function by entering the page, e.g. page 1

Already translators, I would like the display to start with some informational page (welcome page)

and after going to the next page it automatically turned on two relays, but that they were all the time high until the knock, I will not turn off the power

On page0 in preinicjalize event

Code: text Expand Select all Copy to clipboard
page 4

on page 4 (welcome), display the greeting and add a timer. Set the timer for a few seconds

In timer events:

Code: text Expand Select all Copy to clipboard
printh 65 04 02 00 ff ff ff page 0

printh 65 04 02 00 ff ff ff is like pressing an element with index 02.
In arduino, this should be intercepted with a function, e.g. callback, and the relays should be switched on there. I showed this in video # 7.
#9 27 May 2018 09:02

kaino kaino

Level 12

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#9 27 May 2018 09:02

hello, nice if you add sketches for arduino to the video tutorials.

I have a question, do you have an idea how to wirelessly connect nextion with arduino?
#10 27 May 2018 10:41

Slawek K. Slawek K.

Level 35

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#10 27 May 2018 10:41

Via Bluetooth.

Greetings
#11 27 May 2018 11:08

ekrzychoooo ekrzychoooo

Level 17

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#11 27 May 2018 11:08

kaino wrote:
hello, nice if you add sketches for arduino to the video tutorials.

It's been like that since the episode # 21
#12 27 May 2018 11:58

kaino kaino

Level 12

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#12 27 May 2018 11:58

rs6000 wrote:
Via Bluetooth.

Greetings

Do you have a checked receiver and transducer?
#13 27 May 2018 12:14

Slawek K. Slawek K.

Level 35

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#13 27 May 2018 12:14

For example, HC-05, HC-06, I use these, but others are available.

Greetings
#14 27 May 2018 14:05

kaino kaino

Level 12

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#14 27 May 2018 14:05

rs6000 wrote:
For example, HC-05, HC-06, I use these, but others are available.

Greetings

I just need to pair them and they will communicate?
#15 28 May 2018 12:16

kaino kaino

Level 12
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#15 28 May 2018 12:16

ekrzychoooo wrote:
Hello
One command is unlikely to succeed. There is a trick that can be used:
create a Hotspot, e.g. m0 with the size of 2x2px and the code in it

Code: text Expand Select all Copy to clipboard
bt0.val=1 bt1.val=1 bt2.val=1 bt2.val=1

And with arduino send a click code to click m0.0
In the film Link I showed how to use Hotspot in an unusual way

Quote:
how to send commands with one button
I do not know exactly whether it is for LCD or arduino with LCD.

After typing click m2.1 at the top of the page, it does not start these relays, but when I type in the debugger from my finger, it works, what I'm doing wrong
#16 28 May 2018 15:23

ekrzychoooo ekrzychoooo

Level 17

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#16 28 May 2018 15:23

It's hard to say something without seeing the code.
Can you paste the HMI file here as an attachment to a post?

Added after 14 [minutes]:

There is a new episode.
How to protect access to the site with a password
#17 28 May 2018 18:43

kaino kaino

Level 12

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#17 28 May 2018 18:43

ekrzychoooo wrote:
It's hard to say something without seeing the code.
Can you paste the HMI file here as an attachment to a post?

Added after 14 [minutes]:

There is a new episode.
How to protect access to the site with a password

I watched the latest episode and it became clear :)

You will not click on another page

Now I am struggling to add 3 physical buttons to match the dual state button in the nextion

I try to do it with little success

Code: c
Log in, to see the code
#18 28 May 2018 20:26

ekrzychoooo ekrzychoooo

Level 17

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#18 28 May 2018 20:26

Is there a pin 213 in your arduino

Quote:
pinMode (213, OUTPUT);

bt0.val can be either 0 or 1 and you are constantly subtracting 1

Quote:
sendCommand ("bt0.val- = 1");

or keep adding 1

Quote:
sendCommand ("bt0.val + = 1");

You have S1 as input and you set it as if it were an output:

Quote:
if (dual_state) {digitalWrite (S1, LOW);} else {digitalWrite (S1, HIGH);}
#19 28 May 2018 20:40

kaino kaino

Level 12

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#19 28 May 2018 20:40

ekrzychoooo wrote:

You have S1 as input and you set it as if it were an output:

Quote:
if (dual_state) {digitalWrite (S1, LOW);} else {digitalWrite (S1, HIGH);}

can you tell me how it should be set?
#20 28 May 2018 20:45

ekrzychoooo ekrzychoooo

Level 17

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#20 28 May 2018 20:45

w setup
Code: c
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#21 28 May 2018 20:54

kaino kaino

Level 12

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#21 28 May 2018 20:54

I have arduino connected to usb pc and in debug mode I select user mcu input

I can see that the arduino gets the command after the LEDs, but the LED on pin 13 does not go out

Code: c
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#22 28 May 2018 21:11

ekrzychoooo ekrzychoooo

Level 17

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#22 28 May 2018 21:11

you have the bt0PopCallback function implemented at the end of the code and you use it in setup.
Make a declaration of this function before setup

Code: c
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#23 28 May 2018 21:16

kaino kaino

Level 12

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#23 28 May 2018 21:16

ekrzychoooo wrote:
you have the bt0PopCallback function implemented at the end of the code and you use it in setup.
Make a declaration of this function before setup

Code: c
Log in, to see the code

cramps still not working

https://github.com/itead/ITEADLIB_Arduino_Nextion

hardware download libraries are arduino mega
#24 28 May 2018 21:35

ekrzychoooo ekrzychoooo

Level 17

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#24 28 May 2018 21:35

In fact, it has no right to work.

analyze this passage

Code: c
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button_pin3 is probably always on HIGH, so you have bt0.val permanently on 0

try this code

Code: c
Log in, to see the code
#25 28 May 2018 21:47

kaino kaino

Level 12

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#25 28 May 2018 21:47

ekrzychoooo wrote:
In fact, it has no right to work.

analyze this passage

Code: c
Log in, to see the code

button_pin3 is probably always on HIGH, so you have bt0.val permanently on 0

try this code

Code: c
Log in, to see the code

thank you for your willingness to help but I think I have to write it again because it still does not work
#26 28 May 2018 21:59

ekrzychoooo ekrzychoooo

Level 17

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#26 28 May 2018 21:59

In the display for the bt0 button in the "Touch release Event" "Send command ID" must be selected.
If you have it, I don't know what could be either.
#27 29 May 2018 16:31

kaino kaino

Level 12

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#27 29 May 2018 16:31

ekrzychoooo wrote:
In the display for the bt0 button in the "Touch release Event" "Send command ID" must be selected.
If you have it, I don't know what could be either.

I coped with it, but when I press the physical button, the icon on the display changes like bt0 = 1 but it does not perform the tasks it has assigned, I had to add it to the execution. But then I can't control the display with a button :)

Code: c
Log in, to see the code
#28 29 May 2018 19:21

ekrzychoooo ekrzychoooo

Level 17

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#28 29 May 2018 19:21

kaino wrote:
sendCommand ("s2.bt0.en = 1");
sendCommand ("s2.bt1.en = 1");

kaino wrote:
sendCommand ("s2.bt0.en = 0");
sendCommand ("s2.bt1.en = 0");

What are these bt0 and bt1 elements?

Whether bt0 and bt1 definitely have an attribute en
Attach the HMI file to the post
#29 29 May 2018 19:23

kaino kaino

Level 12

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#29 29 May 2018 19:23

ekrzychoooo wrote:

kaino wrote:
sendCommand ("s2.bt0.en = 1");
sendCommand ("s2.bt1.en = 1");

kaino wrote:
sendCommand ("s2.bt0.en = 0");
sendCommand ("s2.bt1.en = 0");

What are these bt0 and bt1 elements?

Whether bt0 and bt1 definitely have an attribute en
Attach the HMI file to the post

What are these bt0 and bt1 elements?

then I am sending the state to dual state buton that are 0 or 1

Ps I installed eclipse how to set it to prompt the commands like you in the movie
#30 29 May 2018 19:31

ekrzychoooo ekrzychoooo

Level 17

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#30 29 May 2018 19:31

- I think it should be s2.bt0.val and not s2.bt0.en
- Eclipse Window -> preferences -> C / C ++ -> Indexer -> Enable indexer
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