Nextion Instruction Set

Содержание

• 2 Classification I: Operation Commands of Component and System
  • 2.1 page: Refresh page
  • 2.2 ref: Refresh component
  • 2.3 click: Activate component’s press/release event
  • 2.4 ref_stop: Stop refreshing screen
  • 2.5 ref_star: Recover refreshing screen
  • 2.6 get: Get variable/constant value with format
  • 2.7 sendme: send current pageID to UART
  • 2.8 cov: variable type conversion
  • 2.9 touch_j: Touch calibration
  • 2.10 substr: Extracts the characters from a string
  • 2.11 vis: Hide/show component
  • 2.12 tsw: Enable/disable component touch function
  • 2.13 com_stop: Stop execute instructions from UART
  • 2.14 com_star: Execute instructions from UART
  • 2.15 randset: Set random value range
  • 2.16 code_c: Clear the buffer
  • 2.17 print: Get variable variable/constant value without format
  • 2.18 printh: Send hexadecimal string
  • 2.19 add: Add data to waveform component
  • 2.20 addt: Add data to waveform component in volume
  • 2.21 cle: Clear data in waveform component
  • 2.22 rest: Reset Nextion device
  • 2.23 doevents: Force refresh the screen immediately
  • 2.24 strlen: check length of a string
  • 2.25 if: if statement
  • 2.26 while: while statemet
  • 2.27 for: for statemet
  • 2.28 repo: read EEPROM — Enhanced Model Only
  • 2.29 wepo: write EEPROM — Enhanced Model Only
  • 2.30 wept: write data in hex to EEPROM through UART — Enhanced Model Only
  • 2.31 rept: read data in hex from EEPROM to UART — Enhanced Model Only
  • 2.32 cfgpio: configure GPIO — Enhanced Model Only
• 3 Classification II: GUI Designing Command
  • 3.1 cls: clear the screen
  • 3.2 pic: display picutres
  • 3.3 picq: Crop picture
  • 3.4 xpic: Advanced crop picture
  • 3.5 xstr: Print string on the device
  • 3.6 fill x, y, w, h, color
  • 3.7 line x, y, x2, y2, color
  • 3.8 draw x, y, x2, y2, color
  • 3.9 cir x, y, r, color
  • 3.10 cirs x, y, r, color
• 4 Nextion HMI: System Variables List
• 5 Nextion HMI: Color Code List
• 6 Format of Device Return Data
• 7 Useful link

Note:

1. The instruction is end with three bytes «0xff 0xff 0xff»

2. All the instrucitons and parametners are in ASCII

3. All the instrucitons are in lowercase letters

Classification I: Operation Commands of Component and System

page: Refresh page

page pageid

pageid: Page ID or Page Name

• Example 1:

page 0 //Refresh page 0

• Example 2:

page main //Refresh the page main

Remarks:

The device automatically refresh page 0 when power on.

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