Image to C array for OLED displays

Drop in a picture and get a monochrome C byte array you can paste straight into an Arduino sketch. Tune the threshold and dithering, then check the result on a simulated 128x64 SSD1306 before you flash it.

Image

Options

Output width (px)

Output height (px)

Scale mode

BackgroundFills padding and shows through transparent pixels.

PlacementCentre on canvas

Brightness threshold: 128Pixels brighter than this are lit on the display.

Dithering

Transform

InvertFlip HFlip V

Draw modeOne bit per pixel, most significant bit first, each row padded to a whole byte. This is what display.drawBitmap() expects.

Output format

Array name

Pixel preview

On a 128x64 SSD1306

The bitmap is centred on the panel, exactly as the simulator would render it.

C byte array

0 bytes

display.drawBitmap(0, 0, myBitmap, 128, 64, SSD1306_WHITE);

Inspired by image2cpp by javl: github.com/javl/image2cpp