Simple Frontlight Control

Inkplate 4TEMPERA features a built-in frontlight, which allows the display to be visible in low-light environments. This page shows you how to control the frontlight using a simple sketch.

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The frontlight brightness can be controlled using PWM (Pulse Width Modulation) via the setFrontlight() function, which takes a value between 0 (off) and 100 (full brightness).

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Frontlight Example Code

The following example demonstrates how to turn on the frontlight at 50% brightness and keep it running:

/*
    Inkplate4TEMPERA_Simple_Frontlight example for Soldered Inkplate 4TEMPERA
    This example shows how to control the frontlight brightness.

    Make sure to select "Soldered Inkplate 4TEMPERA" from Tools -> Board menu.

    Want to learn more about Inkplate? Visit www.inkplate.io
    Looking to get support? Write on our forums: https://forum.soldered.com/
*/

#include "Inkplate.h" // Include Inkplate library

Inkplate display; // Create Inkplate object

void setup()
{
    display.begin();              // Initialize the display
    display.setFrontlight(50);   // Set frontlight brightness to 50%
    display.clearDisplay();      // Clear frame buffer
    display.setCursor(0, 20);    // Set cursor position
    display.setTextSize(2);      // Set text size
    display.setTextColor(BLACK); // Set text color
    display.print("Frontlight at 50%");
    display.display();           // Refresh display
}

void loop()
{
    // Nothing here
}

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display.setFrontlight()

Sets the frontlight brightness of the Inkplate 4TEMPERA.

Returns type: void

Function parameters:

Type	Name	Description
uint8_t	value	Brightness value (0–100).

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Full example

Check out the full example on GitHub:

Inkplate4TEMPERA_Simple_Frontlight

Control the frontlight brightness of Inkplate 4TEMPERA.