Table of Contents
IsegClear()
IsegClear() clears the FND display.
bool IsegClear(uint8_t device = 0)
Commands
| Command | Arguments | Return Value | Operation |
|---|---|---|---|
IsegClear(device) | uint8_t device = 0 — FND device number 0~6, defaults to 0 | bool | Clears the FND display. |
Example
void setup() { IsegBegin(14, 15); // MPAINO: TXD(D14), RXD(D15) IsegBrightness(7); // Set display brightness and on/off state. IsegClear(); // Clear the FND display. } void loop() { IsegDecimal((millis() / 1000UL) % 10000UL, true); // Display an integer in decimal format. delay(200); }
Precautions
- These commands are only for 4-digit FND displays with a TM1637 IC. They do not directly drive a generic multiplexed FND display.
- Use display commands after successfully calling
IsegBegin(). - Initialization fails if CLK and DIO use the same pin, or if the device number is
7or higher. length + positionmust be 4 or less. Numbers outside the range are not displayed, andfalseis returned.- Communication may block execution for several ms. Do not call this from an interrupt service routine.
- Do not use the specified pins simultaneously for UART, PWM, encoders, external interrupts or other functions.
- Check the actual module and product manuals for FND power and signal voltages.