Nextion display plugin

[Wiki]

Which speed? Default setting of the Nextion display as well as the Nextion plugin is set to 9600.

To use 115200 baud I have added to the preinitialize event of page0 "baud=115200"
If you do so, you have to change the baud rate in your Wemos Devices Nextion from 9600 to 115200.

[frank]

I want to order a Nextion display so i can use it on my BBQ controller. My question is does this plugin also works with the improved nextion display??

[ThomasB]

My question is does this plugin also works with the improved nextion display??

I have confirmed compatibility with the enhanced version. My evaluation used a NX4024K032-011.

- Thomas

[frank]

My question is does this plugin also works with the improved nextion display??

I have confirmed compatibility with the enhanced version. My evaluation used a NX4024K032-011.

- Thomas

great thx

[waspie]

I haven't updated my ESPs running my nextions for a long time since they were working ok. I used a recent release and now a ton of stuff isn't working right


how do I sent commands to the nextion now?
it used to be just as simple as
nextion,dim=5

but that no longer is the case, how do i do this now?

tried NEXTION,
Nextion
nextion.

nothing works.

plugin is receiving button presses
***Edit*** it's the name of the task now, in my case "lr"

You guys could make a note of that?

[ThomasB]

I tested the latest version (mega-20181207) and no issues were observed.

If your nextion device is named lr then the command used in your example would need to be

Code: Select all

lr,dim=5

- Thomas

[homerruma]

to take advantage of H/W serial using the pin swap option it needs to be wired like this, correct?

NextionHwSerialPinout1.jpg

If this is ok then the scheme is on https://www.letscontrolit.com/wiki/inde ... le=Nextion is not good.


This scheme shows that D7 (RXD2) na Nodemcu connected with NEXTION RX.

[Wiki]

Hi,
RXD2 has to be connected to TX Nextion, TXD2 to RX Nextion.
I don't use a transistor due to the fact that the signals of the Nextion are 3.3V.

[ThomasB]

@homerruma: Thank you for reporting the error. The image has been corrected.

@wiki: Nextion and ESP8266 are indeed 3.3V devices. But the transistor is not intended to convert the logic level. It is a buffer that is used to ensure that the ESP8266 can boot-up. Without it there is a strong chance the ESP8266 will hang on a reset.

- Thomas

[homerruma]

As I see on the link https://www.letscontrolit.com/wiki/inde ... le=Nextion the image is not corrected.
Still stands RX Nodemcu at RX Nektion.

nextion2 by homerruma3, on Flickr

[Wiki]

....But the transistor is not intended to convert the logic level. It is a buffer that is used to ensure that the ESP8266 can boot-up. Without it there is a strong chance the ESP8266 will hang on a reset.

Oh yes, you are right, now I remember.

Sometimes there are some benefits in the procedure first think before write. Thanks for the reminder...

[ThomasB]

As I see on the link https://www.letscontrolit.com/wiki/inde ... le=Nextion the image is not corrected.
Still stands RX Nodemcu at RX Nektion.

Hmm, I see the correct drawing in my browser.

Try refreshing your browser cache to regenerate the Nextion Wiki page. Usually the F5 key will do a refresh (works in FireFox). A refresh should populate the recently uploaded image.

- Thomas

[homerruma]

I've refreshed the page. Now I closed it and reopened it, I can not see the changes.
Definitely everything is old.
Ask the third party to confirm.

[ThomasB]

Hopefully someone in the audience can confirm the wiki page has the new drawing.

I retested the Nextion wiki page using three different WIN10 PC workstations. And I viewed the page using FF, Edge, IE, and chrome browsers. They all show the latest image.

Here's a screenshot:

nextion_screenshot.jpg (176.44 KiB) Viewed 582 times

I have an idea. Try this test: Go to this wiki image folder: https://www.letscontrolit.com/wiki/inde ... r1_450.jpg

You will see two images in the file history. The original (depreciated) July-30-2018 and the corrected image from today, Jan-10-2019. The corrected image is the one that is targeted by the Nextion Wiki page. If you don't see both images then that would indicate that there is a wiki server cache issue; Check again in a few hours.

- Thomas

[homerruma]

This time, Chrome vs Firefox
chrome vs firefox by homerruma3, on Flickr

[homerruma]

Yes, it's corrected
nextion file history by homerruma3, on Flickr

[ThomasB]

To refresh chrome's cache you should hold Ctrl and press F5.
https://www.getfilecloud.com/blog/2015/ ... DfeN817kaY

- Thomas

[homerruma]

Thank you.