invert-display

wayland/ssd1306-oled-i2c/invert-display

Enable or disable display invert mode (white-on-black vs black-on-white). This has an immediate effect on the display, no need to use the send-buffer-to-display node -- buffer contents are not changed, rather a different pixel mode of the display hardware is used. When enabled, drawing BLACK (value 0) pixels will actually draw white, WHITE (value 1) will draw black.
invert-display
@/invert-display
Enable or disable display invert mode (white-on-black vs black-on-white). This has an immediate effect on the display, no need to use the send-buffer-to-display node -- buffer contents are not changed, rather a different pixel mode of the display hardware is used. When enabled, drawing BLACK (value 0) pixels will actually draw white, WHITE (value 1) will draw black.
DEV@/ssd1306-oled-i2c-device
An SSD1306 OLED device.
INVboolean
If true, switch to invert mode (black-on-white), else normal mode (white-on-black).
UPDpulse
Update. Trigger action.
invert-display
DEV
INV
UPD
DONE
DONEpulse
To use the node in your project you should have the wayland/ssd1306-oled-i2c library installed. Use the “File → Add Library” menu item in XOD IDE if you don’t have it yet. See Using libraries for more info.

C++ implementation

struct State {
};

{{ GENERATED_CODE }}

void evaluate(Context ctx) {
    // The node responds only if there is an input pulse
    if (!isInputDirty<input_UPD>(ctx))
        return;

    // Get a pointer to the `Adafruit_SSD1306` class instance
    auto display = getValue<input_DEV>(ctx);

    auto invert_display = getValue<input_INV>(ctx);

    display->invertDisplay(invert_display);

    emitValue<output_DONE>(ctx, 1);
}