You are here:-FAQs
User Duty to Know their …2019-11-21T22:50:34+08:00

Programming and Electronics knowledge are prerequisite
– there are many external internet resources available
– there is no need to replicate all global information here

Nextion can be used with 68,000+ MCUs with a Hardware/Software
TTL Serial, in 130+ programming languages.

It is the User Duty to know
– their chosen MCU
– their chosen Programming Language
– their chosen Compiler
– their chosen Libraries used

Nextion Forum is not a Jobs Board2017-11-22T16:53:13+08:00

The Hobby Lobby is not to be used as a Jobs Board.
– For this, Itead offers Enhanced Support and Project Units

If Enhanced Support is not the path you would like to go
– there are other Freelance sites on the Internet.

Attaching Files to your Forum Posts2018-04-17T16:11:01+08:00

Attaching Files to your Forum Posts

To upload files (such as .HMI, .TFT, .ino, .pas, .cpp, etc) as attachments
1) please zip  your files
2) then use this zip file as your attachment
3) Attachments are limited to 500K per attachment

Such also saves much storage space and time for others to download.

Recalibrating the Resistive Nextion2017-11-07T22:13:10+08:00

Create a new HMI project:
– in the Page Preinitialize Event add the code

Compile and upload your project.
Follow the instructions.

Resetting HMI/Page passwords2017-11-06T11:54:57+08:00

It is pretty straight forward – there is no recovery.

It becomes locked to protect the project
DO NOT LOSE YOUR PASSWORD, or do not use password.

How to Import a Page2017-11-01T21:28:17+08:00

Select Import page to open dialog, select *. page file, click “Open”

Iteadlib Arduino Nextion Library2017-10-10T04:52:08+08:00

Itead’s Iteadlib Arduino Nextion Library is available
via github and can be downloaded from

Default configuration is for the Arduino MEGA 2560
The Arduino UNO is also supported – see file
This framework can be used to port to another MCU

Nextion Editor Download2017-10-10T04:46:33+08:00

The latest version of Nextion Editor can be downloaded [here]

Nextion Datasheets2017-10-10T04:45:15+08:00

The Nextion Datasheets can be found [here]

The Nextion device has burned to dead2017-10-10T04:40:09+08:00

If it was burned by faulty operation, we certainly will not repair it for free.

What is the Range and Unit of Screen Brightness2017-10-10T04:36:21+08:00

The Unit of Screen Brightness is in percentage %
The Range of Screen Brightness is 0 to 100.
– Please refer to dim and dims in the Nextion Instruction Set [here]

For the brightness in nits of your Nextion device
– Please refer to your Nextion model’s Datasheets [here]

Using Component Word Wrap2017-10-10T04:28:06+08:00

Note that you need to use the two characters \r and not \n
Component .isbr attribute needs to be set to true.

<84 78> Resource File Error2017-10-10T04:42:06+08:00

Check the back of your display.  If imprinted with “TJCxxxxTxxx_xxx”, or “TJCxxxxKxxx_xxx” it means your display is a TJC model, which is not sold by ITEAD and we offer no support to such models.

Microsoft .Net 3.5 Runtime Library2017-10-10T04:15:35+08:00

The Nextion Editor requires Microsoft .Net 3.5
Download Microsoft .Net 3.5 [here]

Using the Nextion microSD2017-10-29T16:23:58+08:00

Currently, the microSD slot is used to upload a TFT project file only.
– all other potential uses are currently not supported.

Not all microSD cards are made for use with embedded devices.
– especially newer microSD cards made for cameras, etc.
Class 10 HC 8GB to 32GB cards have had good success. Others too.

– microSD card formatted as FAT32 under Windows
– microSD card is less than 32 GB
– only 1 TFT project file exists on the microSD card
– Nextion device is powered off  before inserting microSD card
– insert the microSD card containing TFT project file
– power on Nextion with recommended clean power as per Datasheets
– Nextion device is undisturbed while uploading
– after upload “successed” indication power off Nextion
– after Nextion device is powered off  then remove microSD card
– power on Nextion with recommended clean power as per Datasheets
– if new version of Nextion Editor, allow time for firmware to update
– wait for uploaded project to begin running on Nextion device

If  microSD upload is unsuccessful
– Reformat the microSD card –  ensuring FAT32 under Windows, and try.
– use a different microSD card (HC, Class 10, under 32GB), and try.
– compile a blank HMI project and try again.
– microSD card is not the only method to upload project – try via USB to TTL.

Using the above steps, the Nextion device will always run firmware upload
when an inserted microSD is detected at power on (power off before insert/remove)

Flashing or blurred screen when powered on2017-10-10T03:34:23+08:00

This may be a Power supply problem.  Please ensure to power your device according to the datasheet power supply range with the recommended supply of current.  Under Voltage can cause damage.  Over Voltage will cause damage.  Too high or too low voltage is likely to damage back-light.  For datasheet please refer to your model’s Datasheets [here]

Standard, Enhanced and Community Support2017-10-10T02:36:03+08:00

Standard Support (Level 2) is offered to Itead customers.
– you must deal your Seller as per Buyer-Seller protection laws
– we only ensure the hardware itself works as expected
– please understand that we can not debug your code.
Supported is stated on the Standard Support page.

Enhanced Support is available by purchasing Tickets here
– quick and professional service, but indeed paid

Community Support is available via the Forum here
– community members will voluntarily answer when they desire.

Connecting Nextion to a Control Device2017-11-01T21:31:07+08:00

Nextion is a 5V TTL Serial HMI device, be mindful
to ensure connecting to an appropriate adapter

The connection between Nextion and control device

Nextion Display -------- Control Device
   5V --------------------------5V
  GND --------------------------GND
   TX --------------------------RX
   RX --------------------------TX

Ensure Ground with all used devices is common.
Control device: FOCA, USB-to-TTL, USB-to-UART, PC, MCU, Arduino
Ensure sufficient current supply as per Datasheets (here)

Can Nextion display flash or animation directly?2017-10-10T01:18:15+08:00

No, this is not supported

Can Nextion work as a raspberry-pi display device?2017-10-10T01:17:52+08:00

No, this is not supported

Nextion IDE Runtime requires Microsoft .Net 3.52017-10-10T01:15:21+08:00

Please ensure Microsoft .Net 3.5 is installed

Is there a Mac or Linux version of Editor2017-10-10T01:03:30+08:00

Sorry, currently we only have a Windows supported version.  If we reach our sales goal in 2016, we will have enough budget to design the cross-platform web UI.  Before that, we will focus on one platform.  Ensure Microsoft .Net 3.5 is installed for Windows.

Others have used Windows virtual machines under Linux and Mac.  Although user operating systems and used software is beyond the scope of Nextion support, it is possible.

Can I use Nextion Editor with TJC Devices2017-10-10T01:04:09+08:00

No.  TJC devices are not sold by Itead and we will offer no support.
TJC versions are allowed to be sold in China mainland only and supports Chinese only.
See TJC for support for TJC devices.

Is Nextion Open Source?2017-10-10T01:05:59+08:00

No.  Nextion is not Open Source.  Nextion will not be Open Source.
– we will not provide Nextion schematics, Nextion PCB layout, components used, Nextion Editor source code, or any of the design data involved.

What is available to the public has been made available
– please refer to your Nextion model’s Datasheet [here]