en-us_commands:reference:isegbrightness
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, 100, 0); // Set the CLK/DIO pins and device number of the TM1637 FND. IsegBegin(130, 131, 100, 1); // MPAINO K/K2 GPIO channels 0, 1 IsegBrightness(7, true, 0); // Set display brightness and on/off state. IsegBrightness(4, true, 1); // Set display brightness and on/off state. } void loop() { IsegDecimal(1234, false, 0, 4, 0, 0); // Display an integer in decimal format. IsegHex(0xABCD, false, 0, 4, 0, 1); // Display an integer in hexadecimal format. }
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.
Built-in Commands in the Same Category
en-us_commands/reference/isegbrightness.txt · Last modified: by 127.0.0.1