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MMDVMHost-Private/Nextion_ON7LDS
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KD4Z ca35121b44 Add more dynamic variables and fix command manging 
Add variables for TX Freq (t30), RX Freq (t32), CPU Temp (t20), and
Location (t31) to Base MMDVM page.   These variables are available with
Layout ON7LDS L3 or higher.  This allows more dynamic info to be
displayed without having to use the optional NextionDriver.  Note, this
doesn't add touch support. For that, use the NextionDriver.
Fixed command mangling occuring during serial writes to Nextion due to
no ready-state monitoring of display readiness.   Added simple thread
sleep to pace the commands as they are sent.  Allows the display a
chance to process the command before another one is blasted in.
Prevents mangling of commands sent before display is ready to accept
them.   Hardwired to 10 msec--let's see if that's enough.
Added setting in mmdvm conf file, Section: [Nextion]  Setting:
DisplayTempInFahrenheit   Value= 0 (default) for C.  1=Fahrenheit  This
controls the value sent to t20.
 		2018-09-05 16:12:12 -04:00
..
NX3224T024-L2.HMI Better YSF image 2018-08-12 11:27:03 +02:00
NX3224T024-L2.tft Better YSF image 2018-08-12 11:27:03 +02:00
NX3224T024-L3.HMI Better YSF image 2018-08-12 11:27:03 +02:00
NX3224T024-L3.tft Better YSF image 2018-08-12 11:27:03 +02:00
NX3224T028-L2.HMI Better YSF image 2018-08-12 11:27:03 +02:00
NX3224T028-L2.tft Better YSF image 2018-08-12 11:27:03 +02:00
NX3224T028-L3.HMI Better YSF image 2018-08-12 11:27:03 +02:00
NX3224T028-L3.tft Better YSF image 2018-08-12 11:27:03 +02:00
NX4024T032-L2.HMI Better YSF image 2018-08-12 11:27:03 +02:00
NX4024T032-L2.tft Better YSF image 2018-08-12 11:27:03 +02:00
NX4832T035-L2.HMI Better YSF image 2018-08-12 11:27:03 +02:00
NX4832T035-L2.tft Better YSF image 2018-08-12 11:27:03 +02:00
NX4832T035-L3.HMI Better YSF image 2018-08-12 11:27:03 +02:00
NX4832T035-L3.tft Better YSF image 2018-08-12 11:27:03 +02:00
README-L2 Changes of Nextion related files to reflect the addition of NXDN 2018-03-18 16:32:27 +01:00
README-L3 Add more dynamic variables and fix command manging 2018-09-05 16:12:12 -04:00
README.md Added POCSAG to ON7LDS layouts, Readme files update 2018-07-28 10:57:35 +02:00

README.md

Nextion Display Layouts by ON7LDS (for MMDVMHost)

The screenlayout has to be selected with the parameter ScreenLayout in the MMDVM.ini file under the Nextion section. This way, the extra functions are activated.

0 = auto (future use, for now it's G4KLX layout)
1 = G4KLX layout
2 = ON7LDS layout (see README-L2)
3 = ON7LDS DIY layout
4 = ON7LDS DIY layout High Speed

Layout 2 is a no-nonsense layout. It is the original (G4KLX) layout with the Talker Alias added. TA color and fonts size can not be changed. At least not easily.

Layout 3 (as is 4) is a layout without any predefined layout options (color, fonts). It sends the fields and information about what was sent to the display, so all layout processing can and should be done in the display itself.

More information about the layouts can be found in

  • README-L2 for the screenLayout 2 setting (list of field names : see README-L3)
  • README-L3 for the screenLayout 3 and 4 settings

When you want extra control over what has to be sent to the Nextion display, you could consider the program 'NextionDriver' at https://github.com/on7lds/NextionDriver as a companion to MMDVMHost. This program sends extra information about the host to the display, can do callsign lookup with extended information (name, city, country) and can do more processing which would not be the task of MMDVMHost (for example: with the help of this program, it is possible to use buttons on the display to do actions on the host itself).
In verbose mode, this program shows you all communication between MMDVMHost and the display.