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Merge pull request #364 from on7lds/dev

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New Nextion Display Layouts
This commit is contained in:
Jonathan Naylor 2018-01-08 18:27:40 +00:00 committed by GitHub
parent 7092e53ae7 deea422452
commit d83c17dccc
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GPG key ID: 4AEE18F83AFDEB23
12 changed files with 350 additions and 19 deletions
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11
MMDVMHost.cpp
View file

@ -1117,6 +1117,12 @@ void CMMDVMHost::createDisplay()
case 2U:
LogInfo(" Screen Layout: ON7LDS");
break;
case 3U:
LogInfo(" Screen Layout: DIY by ON7LDS");
break;
case 4U:
LogInfo(" Screen Layout: DIY by ON7LDS (High speed)");
break;
default:
LogInfo(" Screen Layout: %u (Unknown)", screenLayout);
break;
@ -1129,7 +1135,10 @@ void CMMDVMHost::createDisplay()
if (m_ump != NULL)
m_display = new CNextion(m_callsign, dmrid, m_ump, brightness, displayClock, utc, idleBrightness, screenLayout);
} else {
ISerialPort* serial = new CSerialController(port, SERIAL_9600);
SERIAL_SPEED baudrate = SERIAL_9600;
if (screenLayout==4U)
baudrate = SERIAL_115200;
ISerialPort* serial = new CSerialController(port, baudrate);
m_display = new CNextion(m_callsign, dmrid, serial, brightness, displayClock, utc, idleBrightness, screenLayout);
}
} else if (type == "LCDproc") {

111
Nextion.cpp
View file

@ -84,6 +84,7 @@ bool CNextion::open()
m_ipaddress = (char*)info;
sendCommand("bkcmd=0");
sendCommandAction(0);
setIdle();
@ -94,6 +95,7 @@ bool CNextion::open()
void CNextion::setIdleInt()
{
sendCommand("page MMDVM");
sendCommandAction(1U);
char command[30U];
::sprintf(command, "dim=%u", m_idleBrightness);
@ -101,11 +103,20 @@ void CNextion::setIdleInt()
::sprintf(command, "t0.txt=\"%s/%u\"", m_callsign.c_str(), m_dmrid);
sendCommand(command);
if (m_screenLayout > 2U) {
::sprintf(command, "t4.txt=\"%s\"", m_callsign.c_str());
sendCommand(command);
::sprintf(command, "t5.txt=\"%u\"", m_dmrid);
sendCommand(command);
}
sendCommandAction(17U);
sendCommand("t1.txt=\"MMDVM IDLE\"");
sendCommandAction(11U);
::sprintf(command, "t3.txt=\"%s\"", m_ipaddress.c_str());
sendCommand(command);
sendCommandAction(16U);
m_clockDisplayTimer.start();
@ -117,15 +128,18 @@ void CNextion::setErrorInt(const char* text)
assert(text != NULL);
sendCommand("page MMDVM");
sendCommandAction(1U);
char command[20];
::sprintf(command, "dim=%u", m_brightness);
sendCommand(command);
::sprintf(command, "t0.txt=\"%s\"", text);
sendCommandAction(13U);
sendCommand(command);
sendCommand("t1.txt=\"ERROR\"");
sendCommandAction(14U);
m_clockDisplayTimer.stop();
@ -135,12 +149,14 @@ void CNextion::setErrorInt(const char* text)
void CNextion::setLockoutInt()
{
sendCommand("page MMDVM");
sendCommandAction(1U);
char command[20];
::sprintf(command, "dim=%u", m_brightness);
sendCommand(command);
sendCommand("t0.txt=\"LOCKOUT\"");
sendCommandAction(15U);
m_clockDisplayTimer.stop();
@ -155,8 +171,10 @@ void CNextion::writeDStarInt(const char* my1, const char* my2, const char* your,
assert(type != NULL);
assert(reflector != NULL);
if (m_mode != MODE_DSTAR)
if (m_mode != MODE_DSTAR) {
sendCommand("page DStar");
sendCommandAction(2U);
}
char text[30U];
::sprintf(text, "dim=%u", m_brightness);
@ -164,13 +182,16 @@ void CNextion::writeDStarInt(const char* my1, const char* my2, const char* your,
::sprintf(text, "t0.txt=\"%s %.8s/%4.4s\"", type, my1, my2);
sendCommand(text);
sendCommandAction(42U);
::sprintf(text, "t1.txt=\"%.8s\"", your);
sendCommand(text);
sendCommandAction(45U);
if (::strcmp(reflector, " ") != 0) {
::sprintf(text, "t2.txt=\"via %.8s\"", reflector);
sendCommand(text);
sendCommandAction(46U);
}
m_clockDisplayTimer.stop();
@ -188,6 +209,7 @@ void CNextion::writeDStarRSSIInt(unsigned char rssi)
char text[20U];
::sprintf(text, "t3.txt=\"-%udBm\"", rssi);
sendCommand(text);
sendCommandAction(47U);
m_rssiCount1 = 1U;
return;
}
@ -199,6 +221,7 @@ void CNextion::writeDStarRSSIInt(unsigned char rssi)
char text[20U];
::sprintf(text, "t3.txt=\"-%udBm\"", m_rssiAccum1 / DSTAR_RSSI_COUNT);
sendCommand(text);
sendCommandAction(47U);
m_rssiAccum1 = 0U;
m_rssiCount1 = 1U;
}
@ -210,6 +233,7 @@ void CNextion::writeDStarBERInt(float ber)
char text[20U];
::sprintf(text, "t4.txt=\"%.1f%%\"", ber);
sendCommand(text);
sendCommandAction(48U);
m_berCount1 = 1U;
return;
}
@ -221,6 +245,7 @@ void CNextion::writeDStarBERInt(float ber)
char text[20U];
::sprintf(text, "t4.txt=\"%.1f%%\"", m_berAccum1 / float(DSTAR_BER_COUNT));
sendCommand(text);
sendCommandAction(48U);
m_berAccum1 = 0.0F;
m_berCount1 = 1U;
}
@ -229,6 +254,7 @@ void CNextion::writeDStarBERInt(float ber)
void CNextion::clearDStarInt()
{
sendCommand("t0.txt=\"Listening\"");
sendCommandAction(41U);
sendCommand("t1.txt=\"\"");
sendCommand("t2.txt=\"\"");
sendCommand("t3.txt=\"\"");
@ -241,6 +267,8 @@ void CNextion::writeDMRInt(unsigned int slotNo, const std::string& src, bool gro
if (m_mode != MODE_DMR) {
sendCommand("page DMR");
sendCommandAction(3U);
if (slotNo == 1U) {
if (m_screenLayout == 2U) {
@ -249,6 +277,7 @@ void CNextion::writeDMRInt(unsigned int slotNo, const std::string& src, bool gro
}
sendCommand("t2.txt=\"2 Listening\"");
sendCommandAction(69U);
} else {
if (m_screenLayout == 2U) {
sendCommand("t0.pco=0");
@ -256,6 +285,7 @@ void CNextion::writeDMRInt(unsigned int slotNo, const std::string& src, bool gro
}
sendCommand("t0.txt=\"1 Listening\"");
sendCommandAction(61U);
}
}
@ -272,9 +302,11 @@ void CNextion::writeDMRInt(unsigned int slotNo, const std::string& src, bool gro
}
sendCommand(text);
sendCommandAction(62U);
::sprintf(text, "t1.txt=\"%s%s\"", group ? "TG" : "", dst.c_str());
sendCommand(text);
sendCommandAction(65U);
} else {
::sprintf(text, "t2.txt=\"2 %s %s\"", type, src.c_str());
@ -284,9 +316,11 @@ void CNextion::writeDMRInt(unsigned int slotNo, const std::string& src, bool gro
}
sendCommand(text);
sendCommandAction(70U);
::sprintf(text, "t3.txt=\"%s%s\"", group ? "TG" : "", dst.c_str());
sendCommand(text);
sendCommandAction(73U);
}
m_clockDisplayTimer.stop();
@ -309,6 +343,7 @@ void CNextion::writeDMRRSSIInt(unsigned int slotNo, unsigned char rssi)
char text[20U];
::sprintf(text, "t4.txt=\"-%udBm\"", rssi);
sendCommand(text);
sendCommandAction(66U);
m_rssiCount1 = 1U;
return;
}
@ -320,6 +355,7 @@ void CNextion::writeDMRRSSIInt(unsigned int slotNo, unsigned char rssi)
char text[20U];
::sprintf(text, "t4.txt=\"-%udBm\"", m_rssiAccum1 / DMR_RSSI_COUNT);
sendCommand(text);
sendCommandAction(66U);
m_rssiAccum1 = 0U;
m_rssiCount1 = 1U;
}
@ -327,6 +363,7 @@ void CNextion::writeDMRRSSIInt(unsigned int slotNo, unsigned char rssi)
if (m_rssiCount2 == 0U) {
char text[20U];
::sprintf(text, "t5.txt=\"-%udBm\"", rssi);
sendCommandAction(74U);
sendCommand(text);
m_rssiCount2 = 1U;
return;
@ -339,6 +376,7 @@ void CNextion::writeDMRRSSIInt(unsigned int slotNo, unsigned char rssi)
char text[20U];
::sprintf(text, "t5.txt=\"-%udBm\"", m_rssiAccum2 / DMR_RSSI_COUNT);
sendCommand(text);
sendCommandAction(74U);
m_rssiAccum2 = 0U;
m_rssiCount2 = 1U;
}
@ -351,12 +389,15 @@ void CNextion::writeDMRTAInt(unsigned int slotNo, unsigned char* talkerAlias, co
return;
if (type[0] == ' ') {
if (slotNo == 1U)
sendCommand("t0.pco=33808");
else
sendCommand("t2.pco=33808");
if (slotNo == 1U) {
if (m_screenLayout == 2U) sendCommand("t0.pco=33808");
sendCommandAction(64U);
} else {
if (m_screenLayout == 2U) sendCommand("t2.pco=33808");
sendCommandAction(72U);
}
return;
}
}
if (slotNo == 1U) {
char text[40U];
@ -369,10 +410,11 @@ void CNextion::writeDMRTAInt(unsigned int slotNo, unsigned char* talkerAlias, co
sendCommand("t0.font=2");
if (::strlen((char*)talkerAlias) > (24U-4U))
sendCommand("t0.font=1");
}
sendCommand("t0.pco=1024");
sendCommand("t0.pco=1024");
}
sendCommand(text);
sendCommandAction(63U);
} else {
char text[40U];
::sprintf(text, "t2.txt=\"2 %s %s\"", type, talkerAlias);
@ -384,11 +426,12 @@ void CNextion::writeDMRTAInt(unsigned int slotNo, unsigned char* talkerAlias, co
sendCommand("t2.font=2");
if (::strlen((char*)talkerAlias) > (24U-4U))
sendCommand("t2.font=1");
}
sendCommand("t2.pco=1024");
sendCommand("t2.pco=1024");
}
sendCommand(text);
}
sendCommandAction(71U);
}
}
void CNextion::writeDMRBERInt(unsigned int slotNo, float ber)
@ -398,6 +441,7 @@ void CNextion::writeDMRBERInt(unsigned int slotNo, float ber)
char text[20U];
::sprintf(text, "t6.txt=\"%.1f%%\"", ber);
sendCommand(text);
sendCommandAction(67U);
m_berCount1 = 1U;
return;
}
@ -409,6 +453,7 @@ void CNextion::writeDMRBERInt(unsigned int slotNo, float ber)
char text[20U];
::sprintf(text, "t6.txt=\"%.1f%%\"", m_berAccum1 / DMR_BER_COUNT);
sendCommand(text);
sendCommandAction(67U);
m_berAccum1 = 0U;
m_berCount1 = 1U;
}
@ -417,6 +462,7 @@ void CNextion::writeDMRBERInt(unsigned int slotNo, float ber)
char text[20U];
::sprintf(text, "t7.txt=\"%.1f%%\"", ber);
sendCommand(text);
sendCommandAction(75U);
m_berCount2 = 1U;
return;
}
@ -428,6 +474,7 @@ void CNextion::writeDMRBERInt(unsigned int slotNo, float ber)
char text[20U];
::sprintf(text, "t7.txt=\"%.1f%%\"", m_berAccum2 / DMR_BER_COUNT);
sendCommand(text);
sendCommandAction(75U);
m_berAccum2 = 0U;
m_berCount2 = 1U;
}
@ -438,6 +485,7 @@ void CNextion::clearDMRInt(unsigned int slotNo)
{
if (slotNo == 1U) {
sendCommand("t0.txt=\"1 Listening\"");
sendCommandAction(61U);
if (m_screenLayout == 2U) {
sendCommand("t0.pco=0");
@ -449,6 +497,7 @@ void CNextion::clearDMRInt(unsigned int slotNo)
sendCommand("t6.txt=\"\"");
} else {
sendCommand("t2.txt=\"2 Listening\"");
sendCommandAction(69U);
if (m_screenLayout == 2U) {
sendCommand("t2.pco=0");
@ -468,8 +517,11 @@ void CNextion::writeFusionInt(const char* source, const char* dest, const char*
assert(type != NULL);
assert(origin != NULL);
if (m_mode != MODE_YSF)
if (m_mode != MODE_YSF) {
sendCommand("page YSF");
sendCommandAction(4U);
}
char text[30U];
::sprintf(text, "dim=%u", m_brightness);
@ -477,12 +529,15 @@ void CNextion::writeFusionInt(const char* source, const char* dest, const char*
::sprintf(text, "t0.txt=\"%s %.10s\"", type, source);
sendCommand(text);
sendCommandAction(82U);
::sprintf(text, "t1.txt=\"%.10s\"", dest);
sendCommand(text);
sendCommandAction(83U);
if (::strcmp(origin, " ") != 0) {
::sprintf(text, "t2.txt=\"at %.10s\"", origin);
sendCommand(text);
sendCommandAction(84U);
}
m_clockDisplayTimer.stop();
@ -500,6 +555,7 @@ void CNextion::writeFusionRSSIInt(unsigned char rssi)
char text[20U];
::sprintf(text, "t3.txt=\"-%udBm\"", rssi);
sendCommand(text);
sendCommandAction(85U);
m_rssiCount1 = 1U;
return;
}
@ -511,6 +567,7 @@ void CNextion::writeFusionRSSIInt(unsigned char rssi)
char text[20U];
::sprintf(text, "t3.txt=\"-%udBm\"", m_rssiAccum1 / YSF_RSSI_COUNT);
sendCommand(text);
sendCommandAction(85U);
m_rssiAccum1 = 0U;
m_rssiCount1 = 1U;
}
@ -522,6 +579,7 @@ void CNextion::writeFusionBERInt(float ber)
char text[20U];
::sprintf(text, "t4.txt=\"%.1f%%\"", ber);
sendCommand(text);
sendCommandAction(86U);
m_berCount1 = 1U;
return;
}
@ -533,6 +591,7 @@ void CNextion::writeFusionBERInt(float ber)
char text[20U];
::sprintf(text, "t4.txt=\"%.1f%%\"", m_berAccum1 / float(YSF_BER_COUNT));
sendCommand(text);
sendCommandAction(86U);
m_berAccum1 = 0.0F;
m_berCount1 = 1U;
}
@ -541,6 +600,7 @@ void CNextion::writeFusionBERInt(float ber)
void CNextion::clearFusionInt()
{
sendCommand("t0.txt=\"Listening\"");
sendCommandAction(81U);
sendCommand("t1.txt=\"\"");
sendCommand("t2.txt=\"\"");
sendCommand("t3.txt=\"\"");
@ -552,8 +612,10 @@ void CNextion::writeP25Int(const char* source, bool group, unsigned int dest, co
assert(source != NULL);
assert(type != NULL);
if (m_mode != MODE_P25)
if (m_mode != MODE_P25) {
sendCommand("page P25");
sendCommandAction(5U);
}
char text[30U];
::sprintf(text, "dim=%u", m_brightness);
@ -561,9 +623,11 @@ void CNextion::writeP25Int(const char* source, bool group, unsigned int dest, co
::sprintf(text, "t0.txt=\"%s %.10s\"", type, source);
sendCommand(text);
sendCommandAction(102U);
::sprintf(text, "t1.txt=\"%s%u\"", group ? "TG" : "", dest);
sendCommand(text);
sendCommandAction(103U);
m_clockDisplayTimer.stop();
@ -580,6 +644,7 @@ void CNextion::writeP25RSSIInt(unsigned char rssi)
char text[20U];
::sprintf(text, "t2.txt=\"-%udBm\"", rssi);
sendCommand(text);
sendCommandAction(104U);
m_rssiCount1 = 1U;
return;
}
@ -591,6 +656,7 @@ void CNextion::writeP25RSSIInt(unsigned char rssi)
char text[20U];
::sprintf(text, "t2.txt=\"-%udBm\"", m_rssiAccum1 / P25_RSSI_COUNT);
sendCommand(text);
sendCommandAction(104U);
m_rssiAccum1 = 0U;
m_rssiCount1 = 1U;
}
@ -602,6 +668,7 @@ void CNextion::writeP25BERInt(float ber)
char text[20U];
::sprintf(text, "t3.txt=\"%.1f%%\"", ber);
sendCommand(text);
sendCommandAction(105U);
m_berCount1 = 1U;
return;
}
@ -613,6 +680,7 @@ void CNextion::writeP25BERInt(float ber)
char text[20U];
::sprintf(text, "t3.txt=\"%.1f%%\"", m_berAccum1 / float(P25_BER_COUNT));
sendCommand(text);
sendCommandAction(105U);
m_berAccum1 = 0.0F;
m_berCount1 = 1U;
}
@ -621,6 +689,7 @@ void CNextion::writeP25BERInt(float ber)
void CNextion::clearP25Int()
{
sendCommand("t0.txt=\"Listening\"");
sendCommandAction(101U);
sendCommand("t1.txt=\"\"");
sendCommand("t2.txt=\"\"");
sendCommand("t3.txt=\"\"");
@ -629,7 +698,7 @@ void CNextion::clearP25Int()
void CNextion::writeCWInt()
{
sendCommand("t1.txt=\"Sending CW Ident\"");
sendCommandAction(12U);
m_clockDisplayTimer.start();
m_mode = MODE_CW;
@ -638,6 +707,7 @@ void CNextion::writeCWInt()
void CNextion::clearCWInt()
{
sendCommand("t1.txt=\"MMDVM IDLE\"");
sendCommandAction(11U);
}
void CNextion::clockInt(unsigned int ms)
@ -666,11 +736,24 @@ void CNextion::clockInt(unsigned int ms)
void CNextion::close()
{
sendCommand("page MMDVM");
sendCommandAction(1U);
sendCommand("t1.txt=\"MMDVM STOPPED\"");
sendCommandAction(19U);
m_serial->close();
delete m_serial;
}
void CNextion::sendCommandAction(unsigned int status)
{
if (m_screenLayout<3U) return;
char text[30U];
::sprintf(text, "MMDVM.status.val=%d", status);
sendCommand(text);
sendCommand("click S0,1");
}
void CNextion::sendCommand(const char* command)
{
assert(command != NULL);

2
Nextion.h
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@ -49,6 +49,7 @@ protected:
virtual void writeDMRInt(unsigned int slotNo, const std::string& src, bool group, const std::string& dst, const char* type);
virtual void writeDMRRSSIInt(unsigned int slotNo, unsigned char rssi);
virtual void writeDMRTAInt(unsigned int slotNo, unsigned char* talkerAlias, const char* type);
virtual void writeDMRBERInt(unsigned int slotNo, float ber);
virtual void clearDMRInt(unsigned int slotNo);
@ -89,6 +90,7 @@ private:
unsigned int m_berCount2;
void sendCommand(const char* command);
void sendCommandAction(unsigned int status);
};
#endif

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Nextion_ON7LDS/NX3224T024-L3.HMI Normal file
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Nextion_ON7LDS/NX3224T024-L3.tft Normal file
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Nextion_ON7LDS/NX3224T028-L3.HMI Normal file
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Nextion_ON7LDS/NX3224T028-L3.tft Normal file
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Nextion_ON7LDS/NX4832T035-L3.HMI Normal file
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Nextion_ON7LDS/NX4832T035-L3.tft Normal file
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20
Nextion_ON7LDS/README → Nextion_ON7LDS/README-L2
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@ -1,5 +1,14 @@
The files in this directory are Nextion screen layouts with better fonts than
the(rather ugly) standard Nextion fonts
Nextion Display Layouts by ON7LDS (for MMDVMHost)
=================================================
################################
# #
# screenLayout 2 files (-L2) #
# #
################################
The -L2 files in this directory are Nextion screen layouts with better
fonts than the (rather ugly) standard Nextion fonts
There are some other changes:
@ -20,10 +29,13 @@ There are some other changes:
must copy this font to the lesser ('smaller') fonts.
i.e. : the 3.2" the display can show more than 31 characters (the maximum
TA length) in font 2, so this font is also copied to font 1.
* If you want more control about what and how it is displayed, you better
select Layout 3 or 4 (see README-L3)
* The screenlayout has to be selected with the parameter ScreenLayout in the
MMDVM.ini file under the Nextion section. This way, the extra function
to automatically change the font size, is activated.
0 = auto (future use, for now it's G4KLX layout)
1 = G4KLX layout
2 = ON7LDS layout
2 = ON7LDS layout (this README file)
3 = DIY by ON7LDS layout (see README-L3)
4 = DIY by ON7LDS layout Hig Speed (see README-L3)

200
Nextion_ON7LDS/README-L3 Normal file
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@ -0,0 +1,200 @@
Nextion Display Layouts by ON7LDS (for MMDVMHost)
=================================================
####################################
# #
# screenLayout 3 & 4 files (-L3) #
# #
# DIY layouts #
# #
####################################
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 (this README file)
4 = ON7LDS DIY layout Hig Speed (this README file)
screenLayout 3 and 4 are the same, but selecting 3, MMDVMHost wil communicate
at 9600bps with the display and selecting 4 will set the baudrate to 115200.
If you select 4 (115200bps) *you* have to program your Nextion to default to
that baudrate.
How to set the default Nextion Display baudrate ?
You could use the Nextion editor, connect to your display with the debug
tool (do not forget to select your display and not the simulator) and
give the command 'bauds=115200'.
Another option is to set the command above in the Preinitialization Event
of the first page. Nextion recommends to do the latter in any case,
because 'on rare occasions bauds has become lost'
DIY layouts
-----------
When selecting this layout, all processing can and should be done in the
Nextion display itself.
Whenever MMDVMHost sends new data to the screen, it also sends information
about what was sent as a number in global variable MMDVM.status.
(see further in this document for a table of numbers and their events)
Then MMDVMHost activates the Touch Press Event of object 'S0' of the
active page.
In this event procedure, all processing can be done.
Check the Touch Press Event of object 'S0' of the DMR page of the example
HMI file. As a straightforward example, the code there will show you how
to do some tasks when receiving data from MMDVMHost or NextionDriver:
- change colors and fonts of the TA on the DMR page when it arrives.
(TA length calculation is done in the display itsself !)
- remove the slot number from t2.txt (since it's always 2)
- in the middle of the DMR screen, the previous user is displayed
for each slot (S1 at the left, S2 at the right)
This is done by copying the data from the ID/TA field to these
fields at call end.
The examples are there to give you an idea of what can be done.
It is up to your imagination to go even further.
When, for example, you want to change the text 'listening' to some
other text, like 'RX', you just have to monitor the event status and
take action in the Touch Event of S0 of the corresponding page.
Or you could hide/show pictures, switch to other pages, etc.
Check the NextionDriver program and the display layouts there to see
some other examples of what can be done by programming in the
display. (https://github.com/on7lds/NextionDriver)
NOTE: it might be good to *not* remove fields from the display when you do not
need them, but make them small (i.e. 10 x 10 pixels) and put them aside:
Give them the same font color and background color as where you put them
OR
Put them behind some picture: put them on top of the picture, then select the
picture and click the 'Bring Top' button to put it on top of all those fields
OR
set them invisible when the page is selected (with the 'vis' command) in the
preinitialize event of the page
This way, you can use the data from the fields to process them
as is done with the GPS data in the example.
Status codes that will be sent:
-------------------------------
The status code gives more information about what was sent in the
changed field.
1 : page MMDVM
2 : page D-Star
3 : page DMR
4 : page YSF
5 : page P25
11 : IDLE
12 : CW
13 : ERROR text
14 : ERROR
15 : LOCKOUT
16 : IPaddress
17 : ID/Call (t0 and t4,t5 are sent)
19 : END
41 : D-Star listening
42 : type/my1/my2
45 : your
46 : reflector
47 : RSSI
48 : ber
61 : DMR listening1
62 : ID1
63 : TA1
64 : Call end1
65 : TG1
66 : RSSI1
67 : ber1
69 : DMR listening2
70 : ID2
71 : TA2
72 : Call end2
73 : TG2
74 : RSSI2
75 : ber2
76 : GPS1 (t8,t9,t12)
77 : GPS2 (t10,t11,t13)
81 : YSF listening
82 : src
83 : dest
84 : origin
85 : RSSI
86 : ber
101 : P25 listening
102 : source
103 : dest
104 : RSSI
105 : ber
Fields (and their numbers) on the pages, used by MMDVMHost
----------------------------------------------------------
MMDVM
t0 : owner call & ID / errortext LOCKOUT
t1 : status / ERROR
t2 : date & time
screenLayout >1 :
t3 : ip address
t4 : owner call
t5 : owner ID
D-Star
t0 : type my1 my2
t1 : your
t2 : reflector
t3 : rssi
t4 : ber
DMR
t0 : src1 id / call / TA
t1 : dst
t2 : src2 id / call / TA
t3 : dst
t4 : rssi1
t5 : rssi2
t6 : ber1
t7 : ber2
screenLayout >2 :
t8 : GPS1 dec
t9 : GPS1 DMS
t10: GPS2 dec
t11: GPS2 DMS
t12: GPS1 err
t13: GPS2 err
YSF
t0 : type,source
t1 : dst
t2 : src
t3 : rssi
t4 : ber
P25
t0 : type,source
t1 : dst
t2 : rssi
t3 : ber

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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 = DIY layout
4 = 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
* README-L2 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).
In verbose mode, this program shows you all communication between MMDVMHost and the display.