Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
Beide Seiten der vorigen Revision Vorhergehende Überarbeitung Nächste Überarbeitung | Vorhergehende Überarbeitung | ||
unipagernextion [2018/02/26 22:10] dh3wr |
unipagernextion [2018/11/12 21:27] (aktuell) oe7bsh [Nextion Touch Display for UniPager] |
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====== Nextion Touch Display for UniPager ====== | ====== Nextion Touch Display for UniPager ====== | ||
- | Zu jedem schönen Projekt gehört mittlerweile auch ein Display. Die Varianten der Firma Nextion sind sehr beliebt auf Grund ihrer Fähigkeiten und ihres Preises. Der Anschluss geschieht über einen USB-TTL 3,3 Volt Wandler, da der interne UART-Port auf dem RasPi bereits belegt ist beim RasPagerC9000. Die Software ist in Entwicklung. [[https://github.com/rwth-afu/UniPagerNextion|https://github.com/rwth-afu/UniPagerNextion]] | + | Every project nowadays reaches for nice user interface. The display models from the company Nextion are quite famous due to their price and capabilities. The connection is made by a 3.3 V UART interface, either by a USB-TTL 3.3 V adapter or via the RasPi's onboard UART, if not already used. The software is written in Python can can be found here. [[https://github.com/rwth-afu/UniPagerNextion|https://github.com/rwth-afu/UniPagerNextion]] |
- | Start-Animation des Displays: | + | Start-Animation of the Displays: |
- | {{ ::unipager:unipager_nextion_startup.jpg?direct&600 |}} | + | {{ ::unipager:unipager_nextion_startup.jpg?direct&600 |Start-Animation des Displays}} |
- | Ansicht im laufenden Betrieb: | + | View from running mode: |
- | {{ ::unipager:unipager_nextion_betrieb.jpg?direct&600 |}} | + | {{ ::unipager:unipager_nextion_betrieb.jpg?direct&600 |nsicht im laufenden Betrieb}} |
+ | |||
+ | View in 19 inch frame: | ||
+ | {{ ::unipager:frontansicht.jpg?direct&600 |Ansicht im 19 Zoll Gehäuse}} | ||
+ | |||
+ | Possible suppliers: | ||
+ | * https://www.exp-tech.de/displays/lcd/7179/itead-studio-nextion-nx4024t032-generic-3.2-hmi-tft-intelligent-lcd-touch-display-module | ||
+ | * https://www.komputer.de/zen/index.php?main_page=product_info&products_id=354 | ||
===== Supported Display types ===== | ===== Supported Display types ===== | ||
In general, all display types from nextion are supported, but it is recommended to use as minimum the 3,2 inch version in order to have sufficient space on the display. | In general, all display types from nextion are supported, but it is recommended to use as minimum the 3,2 inch version in order to have sufficient space on the display. | ||
- | The type code is NX4024T032 [[https://nextion.itead.cc/resources/datasheets/nx4024t032|Link to the manufacturer]]. | + | The type code is NX4024T032 [[https://nextion.itead.cc/resources/datasheets/nx4024t032|Link to the manufacturer]]. There is also a version with 4.2 inch available. |
Be aware: The updates of [[unipager|Unipager]] may not always be compatible with the UniPagerNextion software. If something is not working after an update, let us know and write a ticket to <code>support at hampager.de</code> or [[https://support.hampager.de/open.php|open a ticket]] directly. | Be aware: The updates of [[unipager|Unipager]] may not always be compatible with the UniPagerNextion software. If something is not working after an update, let us know and write a ticket to <code>support at hampager.de</code> or [[https://support.hampager.de/open.php|open a ticket]] directly. | ||
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===== Preparation ===== | ===== Preparation ===== | ||
Install unipager as described on the [[unipager|Unipager]] section of this wiki. | Install unipager as described on the [[unipager|Unipager]] section of this wiki. | ||
- | Install git with | + | Install ''git'' with |
<code>sudo apt-get install git</code> | <code>sudo apt-get install git</code> | ||
===== Software download and install ===== | ===== Software download and install ===== | ||
- | Clone the github repository containing all the software needed into a temporary directory, e.g. ///home/pi/// | + | Clone the github repository containing all the software needed into a temporary directory, e.g. ''/home/pi'' |
<code>git clone https://github.com/rwth-afu/UniPagerNextion.git</code> | <code>git clone https://github.com/rwth-afu/UniPagerNextion.git</code> | ||
cd into the directory of the install script and run it: | cd into the directory of the install script and run it: | ||
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In the general case, no adaption is needed. | In the general case, no adaption is needed. | ||
+ | {{::icons:warning.png?direct |}}{{ :icons:warning.png?direct|}}As we have learned, not everybody is familiar with the concept of //commenting-in und out// [[https://en.wikipedia.org/wiki/Comment_(computer_programming)|Read more.]] So to be extremly clear here: | ||
+ | ''# Something'' means that //Something// is <color #ed1c24>IS NOT</color> active | ||
+ | |||
+ | ''Something'' means that //Something// <color #22b14c>IS</color> active | ||
+ | |||
+ | Keep in mind to restart the UnipagerNextion service after altering the config file. | ||
===== Hardware connection of the Nextion display ===== | ===== Hardware connection of the Nextion display ===== | ||
+ | There are two ways of connection the Nextion display to the Raspberry Pi. | ||
+ | ==== Direct connection to GPIO UART ==== | ||
+ | If you do not use the [[raspager|Raspager]] or [[raspagerc9000|RaspagerC9000]], the GPIO is free to use. So you can conntect the four cables from the Nextion directly to the GPIO header. | ||
- | ==== Loading the software on the Nextion display ==== | + | {{ :unipager:unipager:detail-raspi.jpg?direct&600 |}} |
+ | Pin association to connect the Nextion display directly to the Raspberry Pi on-board UART. | ||
+ | |||
+ | <color #ed1c24>RED</color> 5 V Pin 02 or Pin 04 | ||
+ | |||
+ | BLACK GND Pin 06 or any other ground Pin | ||
+ | |||
+ | <color #22b14c>GREEN</color> Pin 10 | ||
+ | |||
+ | <color #ffc90e>YELLOW</color> Pin 08 | ||
+ | |||
+ | {{::icons:warning.png?direct |}}{{ :icons:warning.png?direct|}}Remember: In the default raspbian image, on Raspberry Pi 3B and Raspberry Pi 3B+, the internal Bluetooth is connected to the internal UART. So as it is quite likely you won't use the Bluetooth, disable it by adding a line | ||
+ | <code>dtoverlay=pi3-disable-bt</code> to ''/boot/config.txt'' and disable the Bluetooth service with | ||
+ | <code>sudo systemctl disable hciuart</code> | ||
+ | |||
+ | Also free the UART from the kernel messages by removing | ||
+ | <code>console=serial0,115200</code> from ''/boot/cmdline.txt'' and enable the UART by adding | ||
+ | <code>enable_uart=1</code> to ''/boot/config.txt'' | ||
+ | |||
+ | Further information is just one google search away: [[https://www.raspberrypi.org/documentation/configuration/uart.md|one google search away]]. | ||
+ | |||
+ | |||
+ | Reboot your Pi after doing these actions. | ||
+ | |||
+ | |||
+ | |||
+ | ==== Connect via USB2Serial-Adapter ==== | ||
+ | |||
+ | In case the onboard UART is not available, you can use a USB-to-Serial adapter. | ||
+ | {{ ::unipager:nextion_with_usb2ser.jpg?direct&600 |}} | ||
+ | |||
+ | {{ ::unipager:usb2ser.jpg?direct&600 |}} | ||
+ | |||
+ | ==== Loading the software on the Nextion display ==== | ||
+ | There is a python script at [[https://github.com/rwth-afu/UniPagerNextion/tree/master/src|https://github.com/rwth-afu/UniPagerNextion/tree/master/src]]. Edit the COM-Port according to your connection and run it with the ''.tft'' file. For firmware update of the display itself a programming with the Windows software from Nextion is recommended. | ||