====== Displays and RTC ======

Functions for a TM1637 FND, character LCD, or DS3231 RTC.

===== TM1637 FND =====

  * [[:en-us_commands:reference:isegbegin|IsegBegin()]] — Sets the CLK/DIO pins and device number of a TM1637 FND display.
  * [[:en-us_commands:reference:isegbrightness|IsegBrightness()]] — Sets display brightness and visibility.
  * [[:en-us_commands:reference:isegclear|IsegClear()]] — Clears the FND display.
  * [[:en-us_commands:reference:isegwrite|IsegWrite()]] — Outputs segment data at the specified position.
  * [[:en-us_commands:reference:isegdecimal|IsegDecimal()]] — Displays an integer in decimal format.
  * [[:en-us_commands:reference:iseghex|IsegHex()]] — Displays an integer in hexadecimal format.
  * [[:en-us_commands:reference:isegencodedigit|IsegEncodeDigit()]] — Converts one digit to segment data.

===== Character LCD =====

  * [[:en-us_commands:reference:iclcdbegin|IclcdBegin()]] — Sets the address and screen dimensions of a PCF8574 character LCD.
  * [[:en-us_commands:reference:iclcdclear|IclcdClear()]] — Clears the LCD screen.
  * [[:en-us_commands:reference:iclcdhome|IclcdHome()]] — Moves the cursor to the first position.
  * [[:en-us_commands:reference:iclcdsetcursor|IclcdSetCursor()]] — Moves the cursor to the specified column and row.
  * [[:en-us_commands:reference:iclcddisplay|IclcdDisplay()]] — Turns the LCD display on or off.
  * [[:en-us_commands:reference:iclcdcursor|IclcdCursor()]] — Shows or hides the cursor.
  * [[:en-us_commands:reference:iclcdblink|IclcdBlink()]] — Enables or disables cursor blinking.
  * [[:en-us_commands:reference:iclcdbacklight|IclcdBacklight()]] — Turns the LCD backlight on or off.
  * [[:en-us_commands:reference:iclcdscrollleft|IclcdScrollLeft()]] — Shifts the displayed content one position to the left.
  * [[:en-us_commands:reference:iclcdscrollright|IclcdScrollRight()]] — Shifts the displayed content one position to the right.
  * [[:en-us_commands:reference:iclcdtextdirection|IclcdTextDirection()]] — Sets the text entry direction.
  * [[:en-us_commands:reference:iclcdautoscroll|IclcdAutoscroll()]] — Enables or disables automatic scrolling.
  * [[:en-us_commands:reference:iclcdcreatechar|IclcdCreateChar()]] — Registers a custom character.
  * [[:en-us_commands:reference:iclcdwrite|IclcdWrite()]] — Outputs a character code or custom character.
  * [[:en-us_commands:reference:iclcdcommand|IclcdCommand()]] — Sends an LCD control command directly.
  * [[:en-us_commands:reference:iclcdprint|IclcdPrint()]] — Prints a string or number on the LCD.

===== RTC =====

  * [[:en-us_commands:reference:irtcbegin|IrtcBegin()]] — Checks the DS3231 RTC connection and starts using it.
  * [[:en-us_commands:reference:irtcread|IrtcRead()]] — Reads the RTC date and time.
  * [[:en-us_commands:reference:irtcset|IrtcSet()]] — Sets the RTC date and time.
  * [[:en-us_commands:reference:irtcunixtime|IrtcUnixTime()]] — Returns the current time as Unix time.
  * [[:en-us_commands:reference:irtcgettemperature|IrtcGetTemperature()]] — Returns the internal RTC temperature.
  * [[:en-us_commands:reference:irtctimevalid|IrtcTimeValid()]] — Checks whether the RTC time is trustworthy.
  * [[:en-us_commands:reference:irtcclearoscillatorstopflag|IrtcClearOscillatorStopFlag()]] — Clears the oscillator-stop status flag.
  * [[:en-us_commands:reference:irtcsetalarm1|IrtcSetAlarm1()]] — Sets alarm 1, including seconds.
  * [[:en-us_commands:reference:irtcsetalarm2|IrtcSetAlarm2()]] — Sets alarm 2 with minute resolution.
  * [[:en-us_commands:reference:irtcalarmenable|IrtcAlarmEnable()]] — Enables or disables the specified alarm.
  * [[:en-us_commands:reference:irtcalarmenabled|IrtcAlarmEnabled()]] — Checks whether the specified alarm is enabled.
  * [[:en-us_commands:reference:irtcalarmtriggered|IrtcAlarmTriggered()]] — Checks whether an alarm has triggered and optionally clears its status.
  * [[:en-us_commands:reference:irtcsquarewave|IrtcSquareWave()]] — Configures the RTC square-wave output.
  * [[:en-us_commands:reference:irtc32khz|Irtc32kHz()]] — Enables or disables the RTC 32kHz output.

[[:en-us_commands:builtin|← Built-in function list]]