LUA Reference Guide
2.11
2.11
  • EdgeTX LUA Reference Guide
  • Overview
    • Lua Basics
    • LUA version and included libraries
      • io Library
    • Script Types
      • One-Time Scripts
      • Telemetry Scripts
      • Widget Scripts
      • Function Scripts
      • Mixes Scripts
    • Radios
      • BetaFPV
      • FlySky
      • FrSky
      • Jumper
      • Radiomaster
        • TX16S
    • Internal indexes
      • Source List
      • Switch Positions List
  • LUA API Reference
    • Constants
      • Color Constants
      • Flags and Pattern Constants
      • Key Event Constants
      • Logical Switch Function Constants
      • Screen Constants
      • Special Character Constants
      • Special Function Constants
      • Touch Event Constants
      • Widget Options Constants
      • Units
    • Display LCD
      • Lcd Functions Overview
      • lcd.clear
      • lcd.drawBitmap
      • lcd.drawChannel
      • lcd.drawCombobox(x, y, w, list, idx [, flags])
      • lcd.drawFilledRectangle(x, y, w, h [, flags])
      • lcd.drawGauge(x, y, w, h, fill, maxfill [, flags])
      • lcd.drawLine(x1, y1, x2, y2, pattern, flags)
      • lcd.drawNumber(x, y, value [, flags])
      • lcd.drawPixmap(x, y, name)
      • lcd.drawPoint(x, y)
      • lcd.drawRectangle(x, y, w, h [, flags [, t]])
      • lcd.drawScreenTitle(title, page, pages)
      • lcd.drawSource(x, y, source [, flags])
      • lcd.drawSwitch(x, y, switch, flags)
      • lcd.drawText(x, y, text [, flags])
      • lcd.drawTimer(x, y, value [, flags])
      • lcd.drawAnnulus(x, y, r1, r2, start, end [, flags])
      • lcd.drawArc(x, y, r, start, end [, flags])
      • lcd.drawCircle(x, y, r [, flags])
      • lcd.drawFilledCircle(x, y, r [, flags])
      • lcd.drawFilledTriangle(x1, y1, x2, y2, x3, y3 [, flags])
      • lcd.drawHudRectangle(pitch, roll, xmin, xmax, ymin, ymax [, flags])
      • lcd.drawLineWithClipping(x1, y1, x2, y2, xmin, xmax, ymin, ymax, pattern [, flags])
      • lcd.drawPie(x, y, r, start, end [, flags])
      • lcd.drawTriangle(x1, y1, x2, y2, x3, y3 [, flags])
      • lcd.getColor(area)
      • lcd.getLastLeftPos()
      • lcd.getLastPos()
      • lcd.getLastRightPos()
      • lcd.drawBitmapPattern(bitmap, x, y [, flags])
      • lcd.drawBitmapPatternPie(bitmap, x, y, startAngle, endAngle [, flags])
      • lcd.drawTextLines(x, y, w, h, text [, flags])
      • lcd.exitFullScreen()
      • lcd.invertRect(x, y, w, h [, flags])
      • lcd.refresh()
      • lcd.RGB
      • lcd.resetBacklightTimeout()
      • lcd.setColor(area, color)
      • lcd.sizeText(text [, flags])
      • popupConfirmation(title, message, event)
      • popupInput(title, event, input, min, max)
      • popupWarning(title, event)
      • GREY()
    • LVGL for Lua
      • Overview
      • Examples
      • Constants
      • API
      • lvgl.align
      • lvgl.arc
      • lvgl.box
      • lvgl.build
      • lvgl.button
      • lvgl.choice
      • lvgl.file
      • lvgl.circle
      • lvgl.clear
      • lvgl.color
      • lvgl.confirm
      • lvgl.dialog
      • lvgl.isAppMode
      • lvgl.isFullScreen
      • lvgl.exitFullScreen
      • lvgl.font
      • lvgl.getContext
      • lvgl.message
      • lvgl.momentaryButton
      • lvgl.hide
      • lvgl.hline
      • lvgl.image
      • lvgl.label
      • lvgl.line
      • lvgl.menu
      • lvgl.numberEdit
      • lvgl.page
      • lvgl.qrcode
      • lvgl.rectangle
      • lvgl.set
      • lvgl.setting
      • lvgl.show
      • lvgl.slider
      • lvgl.verticalSlider
      • lvgl.source
      • lvgl.switch
      • lvgl.textEdit
      • lvgl.timer
      • lvgl.toggle
      • lvgl.triangle
      • lvgl.vline
    • Model Functions
      • model.defaultInputs
      • model.deleteFlightModes
      • model.deleteInput
      • model.deleteInputs
      • model.deleteMix
      • model.deleteMixes
      • model.getCurve
      • model.getCustomFunction(function)
      • model.getFlightMode(index)
      • model.getGlobalVariable(index, flight_mode)
      • model.getInfo
      • model.getInput(input, line)
      • model.getInputsCount(input)
      • model.getLogicalSwitch(switch)
      • model.getMix(channel, line)
      • model.getMixesCount(channel)
      • model.getModule(index)
      • model.getOutput(index)
      • model.getSensor(sensor)
      • model.getTimer(timer)
      • model.insertInput(input, line, value)
      • model.insertMix(channel, line, value)
      • model.getSwashRing()
      • model.setSwashRing(params)
      • model.resetSensor(sensor)
      • model.resetTimer(timer)
      • model.setCurve(curve, params)
      • model.setCustomFunction(function, value)
      • model.setFlightMode(index, params)
      • model.setGlobalVariable(index, flight_mode, value)
      • model.setInfo(value)
      • model.setLogicalSwitch(switch, value)
      • model.setModule(index, value)
      • model.setOutput(index, value)
      • model.setTimer(timer, value)
    • Bitmap Functions
      • Bitmap.resize(bitmap, width, height)
      • Bitmap.toMask(bitmap)
      • Bitmap.getSize(name)
      • Bitmap.open(name)
    • Filesystem
      • chdir(directory)
      • del(file or directory)
      • dir(directory)
      • fstat(path)
    • Serial Ports
      • serialGetPower(port_nr)
      • serialRead([num])
      • serialSetPower(port_nr, value)
      • serialWrite(str)
      • setSerialBaudrate(baudrate)
    • System
      • defaultChannel(stick)
      • defaultStick(channel)
      • getGeneralSettings()
      • getVersion()
      • screenshot()
    • Key Inputs
      • getRotEncMode()
      • getRotEncSpeed()
      • killEvents(key)
    • LUA Scripts
      • getAvailableMemory()
      • getUsage()
      • loadScript(file [, mode], [,env])
    • Time
      • getDateTime()
      • getGlobalTimer()
      • getRtcTime()
      • getTime()
      • resetGlobalTimer([type])
    • Audio-Sound
      • playDuration(duration [, hourFormat])
      • playFile(name)
      • playHaptic(duration, pause [, flags])
      • playNumber(value, unit [, attributes])
      • playTone(frequency, duration, pause [, flags [, freqIncr]])
      • flushAudio()
    • Telemetry
      • getRSSI()
    • RF module
      • accessTelemetryPush()
      • crossfireTelemetryPop()
      • crossfireTelemetryPush()
      • ghostTelemetryPop()
      • ghostTelemetryPush()
      • sportTelemetryPop()
      • sportTelemetryPush()
      • getRAS()
      • multiBuffer(address[,value])
    • GPS
      • getTxGPS()
    • Variables
      • getFieldInfo(source)
      • getFlightMode(mode)
      • getLogicalSwitchValue(id)
      • getOutputValue(outputIndex)
      • getShmVar(id)
      • getSourceIndex(sourceName)
      • getSourceName(sourceIndex)
      • getSourceValue(source)
      • getSwitchIndex(positionName)
      • getSwitchName(switchIndex)
      • getSwitchValue(switchIndex)
      • getValue(source)
      • setShmVar(id, value)
      • setStickySwitch(id, value)
      • sources([first[, last]])
      • switches([first[, last]])
  • LUA API Programming
    • Data Exchange with the EdgeTX Model Setup
    • Drawing Flags and Colors
    • Init Function Syntax
    • Input Table Syntax
    • Loading Code Modules Dynamically
    • Output Table Syntax
    • Return Statement Syntax
    • Run Function Syntax
    • Saving Memory
    • Using Key and Touch Events
    • Advanced Topics
      • Debugging techniques
      • Lua data sharing across scripts
      • Speed/memory optimizaton tricks
  • Appendixes
    • Fonts
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  1. LUA API Reference
  2. LVGL for Lua

Constants

Constants defined for use in LVGL layouts.

Name
Description

lvgl.FLOW_ROW

Sets flex layout flow.

lvgl.FLOW_COLUMN

Set flex layout flow.

lvgl.PAD_TINY

2 pixel padding.

lvgl.PAD_SMALL

4 pixel padding.

lvgl.PAD_MEDIUM

6 pixel padding.

lvgl.PAD_LARGE

8 pixel padding.

lvgl.PAD_OUTLINE

Padding required around controls for focus outline.

Constants for the 'filter' property of the lvgl.source control. Can be used to limit which sources the user can select.

Name
Description

lvgl.SRC_ALL

Allow all source types, enable the 'Clear' button and the 'Invert' button.

lvgl.SRC_INPUT

Inputs

lvgl.SRC_STICK

Analog sticks

lvgl.SRC_POT

Pots and sliders

lvgl.SRC_SWITCH

Switches

lvgl.SRC_CHANNEL

Outputs

lvgl.SRC_TRIM

Trims

lvgl.SRC_LOGICAL_SWITCH

Logical switches

lvgl.SRC_GVAR

Global variables

lvgl.SRC_LUA

Custom Lua mix script outputs

lvgl.SRC_OTHER

MIN, MAX, tx battery, timers etc.

lvgl.SRC_HELI

Heli channels

lvgl.SRC_TRAINER

Trainer channels

lvgl.SRC_TELEM

Telemetry sensors

lvgl.SRC_CLEAR

Special value to control the 'Clear' button in the source chooser.

lvgl.SRC_INVERT

Special value to control the 'Invert' button in the source chooser.

Constants for the 'filter' property of the lvgl.witch control. Can be used to limit which sources the user can select.

Name
Description

lvgl.SW_ALL

Allow all switch types, enable the 'Clear' button.

lvgl.SW_SWITCH

Switches

lvgl.SW_TRIM

Trims

lvgl.SW_LOGICAL_SWITCH

Logical switches

lvgl.SW_FLIGHT_MODE

Flight modes

lvgl.SW_TELEM

Telemetry sensors

lvgl.SW_OTHER

ON, ONE, trainer connected, radio activity, etc

lvgl.SW_CLEAR

Special value to control the 'Clear' button in the switch chooser.

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