Best GLCD Bitmap Converter Tools for Arduino and PIC Projects

from PIL import Image img = Image.open('input.png').resize((128,64)).convert('1')  # '1' = 1-bit B/W pixels = img.load() # pack pixels into bytes according to controller layout and write array 

When to use thresholding vs dithering

• Thresholding: Best for crisp icons, monochrome line art, and text. Produces sharp edges and minimal noise.
• Dithering: Best for photographs or images with gradients. Preserves apparent gray levels by patterning black/white pixels.

Quick checklist before flashing to hardware

• Confirm resolution and orientation.
• Verify byte packing (vertical/horizontal) and bit order (MSB/LSB top).
• Trim and optimize image size.
• Choose threshold or dithering based on content.
• Test on an emulator or small test image before flashing big assets.

Conclusion

A GLCD bitmap converter is an essential bridge between modern image formats and the tightly constrained world of graphic LCD controllers. Using the right converter settings—correct packing, bit order, and preprocessing—lets you quickly turn images into firmware-ready bitmaps, saving development time and avoiding display headaches. With small optimizations like trimming and optional compression, you can fit richer graphics into limited flash and RAM, improving the visual quality of embedded interfaces.