NSPanel Lovelance UI
Custom Protocol
55 BB [payload length] [payload] [crc] [crc]
Payload length contains the number of bytes of the payload.
CRC is "CRC-16 (MODBUS) Big Endian" calculated over the whole message
This protocol does not try to implement broken JSON Commands with a specified type (lol). Instead the commands are plain text commands with parameters.
Example for valid Message
This message has to be generated for the Message "1337" (1337 is not a valid command, this is just an example)
55 BB 04 31 33 33 37 5F 5B
Messages to Nextion Display
The following message should be implemented on all pages
wake screen:
wake
set brightness of screensaver:
dimmode,0 - (screen off) dimmode,100 - (screen on with full brightness)
set current time:
time,22 : 26
set current date:
date,?Di 24. Februar
set screensaver timeout (set time in ms limited from 50 to 65535:
timeout,15000
change the page type:
pageType,cardEntities
pageType,cardThermo
pageType,popupLight,Schreibtischlampe
cardEntities Page
The following message can be used to update the content on the cardEntities Page
entityUpdHeading,heading1337
entityUpd,id,type,internalNameEntity,iconId,displayNameEntity,optionalValue
entityUpd,1,light,light.entityName,1,Light1,0
entityUpd,2,shutter,cover.entityName,0,Shutter2
entityUpd,3,delete
entityUpd,4,text,sensor.entityName,3,Temperature,content
entityUpd,4,button,button.entityName,3,bt-name,bt-text
entityUpd,1,switch,switch.entityName,4,Switch1,0
popupLight Page
entityUpdateDetail,buttonState,sliderBrightnessPos,sliderColorTempPos
entityUpdateDetail,1,100,78
entityUpdateDetail,1,100,disable
popupShutter Page
entityUpdateDetail,ignored,sliderPos
entityUpdateDetail,1,77
cardThermo Page
entityUpd,name,currentTemp,destTemp,status,minTemp,maxTemp,stepTemp
Messages from Nextion Display
startup page
event,startup
screensaver page
event,screensaverOpen
cardEntities Page
event,eventName,PageNumber,PageHeading,entityName,buttonId,actionName,optionalValue
event,pageOpen,0
event,buttonPress,1,tHeading,internalNameEntity,1,up
event,buttonPress,1,tHeading,internalNameEntity,1,down
event,buttonPress,1,tHeading,internalNameEntity,1,stop
event,buttonPress,1,tHeading,internalNameEntity,1,OnOff,1
event,buttonPress,1,tHeading,internalNameEntity,1,button
popupLight Page
event,pageOpenDetail,popupLight,internalNameEntity
event,buttonPress,D,nameEntity,internalNameEntity,1,OnOff,1
event,buttonPress,D,nameEntity,internalNameEntity,1,brightnessSlider,50
event,buttonPress,D,nameEntity,internalNameEntity,1,colorTempSlider,50
popupShutter Page
event,pageOpenDetail,popupShutter,internalNameEntity
event,buttonPress,D,nameEntity,internalNameEntity,1,positionSlider,50
cardThermo Page
event,pageOpen,0
event,tempUpd,pageNumber,entityName,temperature
Icons IDs
| ID | Icon |
|---|---|
| 0 |  |
| 1 |  |
| 2 |  |
| 3 |  |
| 4 |  |
Design Guidelines for Nextion HMI Project
Background Color is
- RGB565: 6371 [18e3] (HEX: #1C1C1C, RGB: 28,28,28)
Source for Icons is the Material Design Font, used by HASPone https://github.com/HASwitchPlate/HASPone