Add framework for Nextion HMI Displays [NX8048P050-011C]

vanvught commented 1 year ago

[x] Add support for custom display in build system
[x] Implement class Display
[x] Implement class Nextion
[ ] Implement bridge with remote configuration management

These displays are using the UART protocol for communication. The initial framework (https://github.com/vanvught/rpidmx512/issues/66) is based on the I2C<->UART as the UART for the OPi Zero was used for DMX/RDM. Also the I2C is available for Raspberry Pi Raspbian.

The I2C<->UART is based on the SC16IS740. Please do notice that the cheap boards, for example https://nl.aliexpress.com/item/4000083345920.html , do not have the IRQ line connected.

A consideration: write an UART abstraction layer for the Raspberry Pi Raspbian environment. For the OPi Zero/GD32F implementation, a native UART can be used.

Attached is what I've found in my archive. lib-nextion.zip Nextion.zip

The display is locally available here -> https://www.tinytronics.nl/shop/en/displays/embedded/nextion/nextion-intelligent-nx8048p050-hmi-display-5-inch-800x480-with-capacitive-touchscreen

Datasheet: https://nextion.tech/datasheets/NX8048P050-011C/

@parabolic333

parabolic333 commented 1 year ago

Thank you Arjan

Just so I 100% undertsand - The code you've just done - (LED / stepper / sensors) - works with Pi 4B and OPi Zero.. Thanks Simon

From: Arjan @.> Sent: 16 March 2023 12:21 To: vanvught/linux_rpi_artnet_l6470 @.> Cc: parabolic333 @.>; Mention @.> Subject: [vanvught/linux_rpi_artnet_l6470] Add framework for Nextion HMI Displays [NX8048P050-011C] (Issue #3)

These displays are using the UART protocol for communication. The initial framework (vanvught/rpidmx512#66https://github.com/vanvught/rpidmx512/issues/66) is based on the I2C<->UART as the UART for the OPi Zero was used for DMX/RDM. Also the I2C is available for Raspberry Pi Raspbian.

The I2C<->UART is based on the SC16IS740. Please do notice that the cheap boards, for example https://nl.aliexpress.com/item/4000083345920.html , do not have the IRQ line connected.

A consideration: write an UART abstraction layer for the Raspberry Pi Raspbian environment. For the OPi Zero/GD32F implementation, a native UART can be used.

Attached is what I've found in my archive. lib-nextion.ziphttps://github.com/vanvught/linux_rpi_artnet_l6470/files/10990510/lib-nextion.zip Nextion.ziphttps://github.com/vanvught/linux_rpi_artnet_l6470/files/10990511/Nextion.zip

The display is locally available here -> https://www.tinytronics.nl/shop/en/displays/embedded/nextion/nextion-intelligent-nx8048p050-hmi-display-5-inch-800x480-with-capacitive-touchscreen

Datasheet: https://nextion.tech/datasheets/NX8048P050-011C/

@parabolic333https://github.com/parabolic333

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vanvught commented 1 year ago

Hi Simon, the attached code is from early 2020 and just works on the Orange Pi Zero. I will design and write a complete new framework which will run on all platforms; Raspberry Pi Raspbian / macOs (my development platform), Orange Pi Zero LTS. Unfortunately , the Nextion Editor is only available on Windows. Groet, Arjan

vanvught commented 1 year ago

The code you've just done - (LED / stepper / sensors)

Not related to this issue works on Raspberry Pi Raspbian Linux and Orange Pi Zero LTS.

vanvught commented 1 year ago

[Working document]

Hardware The Linux implementation (Raspberry Pi Linux OS and macOS) will make use of a FTDI Basic Breakout with 5V output.

Nextion Baud rate Copying from https://nextion.tech/instruction-set/#s6

Note: on rare occasions bauds has become lost. With the addition of the Editor Program.s feature, it is now recommended to specify your desired baud rate baud=9600 between declarations and before the page0 instruction and no longer recommending inserting bauds=9600 in the first page’s Preinitialization Event of the HMI.

The implementation would use: baud=115200

Naming convention pages:

startup Page id 0. Called when the firmware is booting and it is initializing the node.
main Page id 1. Called when initializing is done and the node is in running mode.

@parabolic333

vanvught commented 1 year ago

Current custom display configuration in Makefile

DEFINES+=CONFIG_DISPLAY_USE_CUSTOM 
EXTRA_INCLUDES=../lib-nextion/include
CONFIG_DISPLAY_LIB=nextion

I am not that happy with it ;-) It works for now. I will remove the EXTRA_INCLUDES

@parabolic333

vanvught commented 1 year ago

Program.s

-> change baud

baud=115200//Configure baudrate

Note: First time upload is with 9600 baud.

@parabolic333

vanvught commented 1 year ago

The startup page is working. When you change the ArtNet node short-name, or the DMX start address, this page will be updated accordingly.

Use the latest remote configuration tool for setting up the startup page. The default is:

    display.SetTitle("Art-Net 4 L6470");
    display.Set(2, displayudf::Labels::NODE_NAME);
    display.Set(3, displayudf::Labels::IP);
    display.Set(4, displayudf::Labels::VERSION);
    display.Set(5, displayudf::Labels::UNIVERSE_PORT_A);
    display.Set(6, displayudf::Labels::DMX_START_ADDRESS);

Simon.HMI.zip

@parabolic333

vanvught commented 1 year ago

Note: I create the pages just for the Proof of Concept. @parabolic333

vanvught / linux_rpi_artnet_l6470

Add framework for Nextion HMI Displays [NX8048P050-011C] #3