Choose C-array if you want to compile the image directly into your code, or Binary if you are storing it on an SD card.
is the industry-standard utility designed to bridge this gap. This comprehensive guide covers everything you need to know about utilizing this powerful tool to optimize graphics for your embedded projects. Understanding the Core Problem: Why RGB565 Matters
Set the (RGB or BGR, depending on your screen controller). Ensure the TFT Type is set to 16-bit. imageconverter 565 v2.3
Many small TFT displays (e.g., SSD1289, ILI9341, ST7735) operate natively at 16-bit color depth (65,536 colors). While this is lower than 24-bit TrueColor, the visual difference on small screens is negligible, while the performance gains are massive. Advantages:
Ensure the width and height entered in the conversion tool match exactly what is being declared in your drawBitmap function. Choose C-array if you want to compile the
If your reds look blue or yellow tones look pinkish, you are likely experiencing an endianness mismatch or byte order swap. Many frameworks provide built-in config file parameters to adjust this, such as toggling #define TFT_RGB_ORDER inside driver settings, or running a secondary pass tool like the DisplayModule Image Converter to flip row-orders natively.
Use a PNG with transparency if your display driver supports a transparent color index. Understanding the Core Problem: Why RGB565 Matters Set
Are you storing images in or reading them from an SD card ?
Which (e.g., Arduino Nano, ESP32, STM32) are you using?