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

• IsegBegin() — Sets the CLK/DIO pins and device number of a TM1637 FND display.
• IsegBrightness() — Sets display brightness and visibility.
• IsegClear() — Clears the FND display.
• IsegWrite() — Outputs segment data at the specified position.
• IsegDecimal() — Displays an integer in decimal format.
• IsegHex() — Displays an integer in hexadecimal format.
• IsegEncodeDigit() — Converts one digit to segment data.

• IclcdBegin() — Sets the address and screen dimensions of a PCF8574 character LCD.
• IclcdClear() — Clears the LCD screen.
• IclcdHome() — Moves the cursor to the first position.
• IclcdSetCursor() — Moves the cursor to the specified column and row.
• IclcdDisplay() — Turns the LCD display on or off.
• IclcdCursor() — Shows or hides the cursor.
• IclcdBlink() — Enables or disables cursor blinking.
• IclcdBacklight() — Turns the LCD backlight on or off.
• IclcdScrollLeft() — Shifts the displayed content one position to the left.
• IclcdScrollRight() — Shifts the displayed content one position to the right.
• IclcdTextDirection() — Sets the text entry direction.
• IclcdAutoscroll() — Enables or disables automatic scrolling.
• IclcdCreateChar() — Registers a custom character.
• IclcdWrite() — Outputs a character code or custom character.
• IclcdCommand() — Sends an LCD control command directly.
• IclcdPrint() — Prints a string or number on the LCD.

• IrtcBegin() — Checks the DS3231 RTC connection and starts using it.
• IrtcRead() — Reads the RTC date and time.
• IrtcSet() — Sets the RTC date and time.
• IrtcUnixTime() — Returns the current time as Unix time.
• IrtcGetTemperature() — Returns the internal RTC temperature.
• IrtcTimeValid() — Checks whether the RTC time is trustworthy.
• IrtcClearOscillatorStopFlag() — Clears the oscillator-stop status flag.
• IrtcSetAlarm1() — Sets alarm 1, including seconds.
• IrtcSetAlarm2() — Sets alarm 2 with minute resolution.
• IrtcAlarmEnable() — Enables or disables the specified alarm.
• IrtcAlarmEnabled() — Checks whether the specified alarm is enabled.
• IrtcAlarmTriggered() — Checks whether an alarm has triggered and optionally clears its status.
• IrtcSquareWave() — Configures the RTC square-wave output.
• Irtc32kHz() — Enables or disables the RTC 32kHz output.

← Built-in function list