Let's Control It

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commandArray = {}

print('Script bin_selector_nextion executed')  --This shows up in Domoticz log
print(devicechanged['Afval'])
afval = otherdevices_svalues['Afval'] --Afval is the name of my dummy selector switch in this case.
print(otherdevices_svalues['Afval'])  -- svalue returns the value of level (Off, 10, 20, 30, etc) 

if (afval == "10") then -- In this case 10 is selector level 10, needs quotes, just for reference 
os.execute('curl -s "http://192.168.1.125/control?cmd=NEXTION,default.nAfval2.pic=20" ') -- changing a picture does not requires quotes
os.execute([[curl -s 'http://192.168.1.125/control?cmd=NEXTION,default.nAfval1.txt="Weekend"']]) --changing a text does requires quotes
return commandarray --execute the commands
end -- to close if

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-- we need this function to send the quotes around the values
function url_encode(str)
  if (str) then
    str = string.gsub (str, "\n", "\r\n")
    str = string.gsub (str, "([^%w %-%_%.%~])",
        function (c) return string.format ("%%%02X", string.byte(c)) end)
    str = string.gsub (str, " ", "+")
  end
  return str
end
 
powervalueintext = otherdevices_svalues['SolarEnergyLive'] --this values can be for example 88.5 or 1433.2, just like temperature can be 2.3 or -4.4)
powervalueinquotes = '"' ..powervalueintext.. '"' --First part of the magic

commandArray = {}
print('Power = '..powervalueintext) --This shows up in Domoticz log
power =tonumber(powervalueintext) -- If you want to compare numeric values, see example later on

if (devicechanged['SolarEnergyLive'])then --If value changes of device SolarEnergyLive 

os.execute('curl -s "http://192.168.1.125/control?cmd=NEXTION,default.tSolar1.txt=' .. url_encode(powervaluesinquotes) .. '"') --sending value to textbox in quotes
print('Sending data to Nextion') --This shows up in Domoticz log
return commandarray --execute the commands
end --To close the If 

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-- If power value (not the quoted onces these are the to a real number ones)  is between 80.x and 160.x 
-- this can not be compared in Nextion editor because value can be x.x (floats) so lua does that for me

if (power>=80 and power<=160) then  
os.execute('curl -s "http://192.168.1.125/control?cmd=NEXTION,default.nSolar2.pic=3" ') ---pictures do not need quotes around the value
os.execute('curl -s "http://192.168.1.125/control?cmd=NEXTION,default.nSolar1.txt=' .. url_encode(powerquotes) .. '"') --textvalue send with quotes
print('Sending data')

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$Trip_Status = "Active"; //Example text 

/* Text color changes based on value*/

if ($Trip_Status == "Active")
{
$color2 = 63488; //Color value red because Active is true in this case
}
else if ($Trip_Status == "DroppedOff")
{
$color2 = 65535; //Color White
}
else
{
$color2 = 1024; //Color Green
}

$nex3 = curl_init("http://192.168.1.125/control?cmd=NEXTION,default.nRitstatus2.txt=\"$Trip_Status\""); // text does need quotes while sending so escaped
$nex3c =curl_init("http://192.168.1.125/control?cmd=NEXTION,default.nRitstatus2.pco=$color2"); //color doesn't need quotes while sending so no escapes
$nex3d = curl_init("http://192.168.1.125/control?cmd=NEXTION,page%20default"); //Screen jumps to the page with the name default,space escaped with %20
error_log("Nextion ('$Trip_Status')",0);
closelog();
curl_exec($nex3);
curl_exec($nex3c);
curl_exec($nex3d)
curl_close($nex3);
curl_close($nex3c);
curl_close($nex3d)

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va0.val++
if(va0.val>30)
{
  va0.val=30
}
cov va0.val,t0.txt,0
print "|u,i230,n,s"
print t0.txt
printh 0a

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Nextion : code: ,,
EVENT: NEXTION#idx=261.00
ACT  : temperatura=
ACT  : sendtohttp 192.168.1.80,8080,/json.htm?param=udevice&type=command&idx=245&nvalue=0&svalue=0
HTTP/1.1 200 OK
EVENT: NEXTION#value=0.00
EVENT: NEXTION#=255.00
EVENT: NEXTION#=255.00
Nextion: send command: s7
10:00

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on Nextion#idx=230 do
 sendtohttp xxx.xxx.xxx.xxx,8080,/json.htm?param=udevice&type=command&idx=79&nvalue=0&svalue=[Nextion#value]
endon

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EVENT: Nextion#idx=230.00
ACT  : sendtohttp xxx.xxx.xxx.xxx,8080,/json.htm?param=udevice&type=command&idx=79&nvalue=0&svalue=22
HTTP/1.1 200 OK

EVENT: Processing time:165 milliSeconds
EVENT: Nextion#value=22.00
EVENT: Processing time:107 milliSeconds
HTTP : connecting to xxx.xxx.xxx.xxx:8080

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on NEXTION#idx=261 do
    sendtohttp 192.168.1.80,8080,/json.htm?param=udevice&type=command&idx=245&nvalue=0&svalue=[Nextion#value]
endon

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va0.val=va0.val+2
if(va0.val>9)
{
  va1.val=va1.val+1
  va0.val=va0.val-10
}
if(va1.val>25)
{
  va1.val=va3.val
  va0.val=va4.val
}
cov va0.val,t9.txt,1
cov va1.val,t10.txt,2
t4.txt=t10.txt+"."+t9.txt

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va0.val=va0.val-2
if(va0.val<1)
{
  va1.val=va1.val-1
  va0.val=va0.val+9
}
if(va1.val<5)
{
  va1.val=va5.val
  va0.val=va6.val
}
cov va0.val,t9.txt,1
cov va1.val,t10.txt,2
t4.txt=t10.txt+"."+t9.txt

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print "set-temp"
print t4.txt
t4.pco=18242

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t4.pco=65535

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send command: set-temp19.11

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Nextion : send command: set-temp19.1116

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on nextion2#code=3.00 do
sendtohttp 192.168.0.48,8080,/json.htm?param=switchlight&type=command&idx=91&switchcmd=Toggle
endon

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Interfaces Performance
Test Conditions	Min	Typical	Max	Unit
Serial Port Baudrate	Standard	2400	9600	115200	bps
Output High Voltage	IOH=-1mA	3.0	3.2		V
Output Low Voltage	IOL=1mA		0.1	0.2	V
Input High Voltage		2.0	3.3	5.0	V
Input Low Voltage		-0.7	0.0	1.3	V
Serial Port Mode	TTL
Serial Port	4Pin_2.54mm
USB interface	NO
SD card socket	Yes (FAT32 format), support maximum 32G Micro SD Card
* microSD card socket is exclusively used to upgrade Nextion firmware /HMI design

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on foyerNextion#temp do
nextion,page0.t0.txt="%[foyerNextion#temp]%"
endon

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on foyerNextion#temp do
nextion,page0.t0.txt="[foyerNextion#temp]"
endon

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on foyerNextion#temp do
nextion,page0.t0.txt="%foyerNextion#temp%"
endon

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2009401 : IMPT : [foyerNextion#temp] : 69.13
2009402 : EVENT: foyerNextion#temp=69.13
2009450 : ACT  : nextion,page0.t0.txt="%%"
page0.t0.txt="%%"

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  626580 : Nextion : send command: |s,i98,sOff
  98.00
  630852 : Nextion : send command: |s,i98,sOff
  98.00

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  628723 : Nextion : send command: |s,i98,sO¦–Ô98.00
  629787 : Nextion : send command: |s,i98–®e™98.00
  635212 : Nextion : send command: |s,i98,sO³–¨ø98.00
  637356 : Nextion : send command: |s,iN±sOff…Ã0.00

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  print "|s,i10,sOff"   // CMD: Turn Dryer Buzzer off
  printh 0a                // eol, Process Packet

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  print "|u,i10,n,s0"   // CMD: Turn Dryer Buzzer off
  printh 0a                // eol, Process packet.

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on NEXTION#idx=12 do  // Start Dryer Buzzer without voice ack.
Publish /%sysname%/NEXTION/idx,[NEXTION#idx]  // MQTT the button action to OpenHab
endon

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on E16Nextion#code=774 do
    SendToHTTP 192.168.xxx.yyy,8080,/json.htm?type=command&param=switchlight&idx=387&switchcmd=Toggle
endon

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On Action:http://192.168.xxx.yyy/control?cmd=NEXTION,page3.b5.bco=1024
Off Action:http://192.168.xxx.yyy/control?cmd=NEXTION,page3.b5.bco=48631