en-us_commands:reference:isegbrightness
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Table of Contents
IsegBrightness()
IsegBrightness() sets display brightness and visibility.
bool IsegBrightness(uint8_t brightness, bool on = true, uint8_t device = 0)
Commands
| Command | Arguments | Return Value | Operation |
|---|---|---|---|
IsegBrightness(brightness, on, device) | uint8_t brightness — Brightness 0~7bool on = true — true: display ON, false: display OFFuint8_t device = 0 — FND device number 0~6, defaults to 0 | bool | Sets display brightness and visibility. |
Example
void setup() { IsegBegin(14, 15); // MPAINO: TXD(D14), RXD(D15) IsegBrightness(7); IsegClear(); } void loop() { IsegDecimal((millis() / 1000UL) % 10000UL, true); 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.
en-us_commands/reference/isegbrightness.1788785568.txt.gz · Last modified: by 127.0.0.1
