Image2Lcd includes an optional checkbox called or "Save Header Info" . When enabled, the first few bytes of the generated array do not contain pixel colors. Instead, they contain metadata about the image. A standard Image2Lcd header occupies the first 8 bytes: Byte 0: Scan mode indicator Byte 1: Color format (e.g., 0x10 for 16-bit) Byte 2-3: Image Width (low byte, high byte) Byte 4-5: Image Height (low byte, high byte) Byte 6-7: Reserved bits
If your whites appear black, or blues appear yellow, your display register requires an inversion command ( 0x21 or 0x20 ), or you need to toggle the "Invert Character Color" checkbox within Image2Lcd before exporting.
Entering this code unlocks the full version and removes watermarks from the generated C arrays or binary files. How to Register: application. button (usually located in the top menu or help section). Enter the code exactly as shown above and confirm. Alternative Tools image2lcd register code work
: When using the generated code in Arduino, it is recommended to use PROGMEM (e.g., const unsigned char image[] PROGMEM ) to save your board's RAM.
Leo knew exactly what the problem was. He needed a pure C-array of his splash screen image to feed into his microcontroller's code. To get that, he was using a classic, finicky piece of legacy software called . It was the perfect tool for converting bitmaps into LCD-ready hex code, but Leo was using the unregistered trial version. Image2Lcd includes an optional checkbox called or "Save
The MCU configures registers defining the active drawing region (Column Address and Page Address).
typedef struct _HEADCOLOR unsigned char scan; // Scan mode (bit flags for direction and order) unsigned char gray; // Grayscale / color depth (e.g., 0x10 = 16-bit) unsigned short w; // Image width in pixels unsigned short h; // Image height in pixels unsigned char is565; // For 16‑bit color: 0 = 5‑5‑5, 1 = 5‑6‑5 unsigned char rgb; // RGB component order (e.g., 0x00 = BGR, 0x08 = RGB) HEADCOLOR; A standard Image2Lcd header occupies the first 8
Sometimes, even a valid registration fails to "stick" because the software lacks permission to write the license file to the Windows registry or program folder. Right-click the application and select Run as Administrator when entering your code.