Optimize by grouping DATA writes into bulk DMA transfers where supported.
Before sending pixel data, you must instruct the display driver IC where the image should be drawn. This requires writing to the Column Address Set (CASET) and Page Address Set (PASET) registers.
For a standard 128×64 OLED, the correct Image2LCD settings are:
However, it is important to remember that these are starting points. Fine-tuning orientation and color order is almost always required based on the specific PCB layout of your display module. image2lcd register code
Click on the "Register" or "?" icon in the top menu bar.
| Tool | Platform | Key Feature | Best For | | :--- | :--- | :--- | :--- | | | Windows | Specialized for LCD controllers, rich interface, batch processing | Production embedded projects with strict register compatibility | | LCD Image Converter | Windows/Linux/macOS | Open-source, fully customizable, supports command line | Teams seeking cross-platform integration and CI/CD automation | | Online Converters | Web-based | No installation | Quick testing and occasional hobbyist use |
: Paste the string above into the registration field to complete the process. Why This Tool is Popular Optimize by grouping DATA writes into bulk DMA
: Copy and paste the code 0000-0000-0000-0000-6A3B into the field and confirm [3, 5]. Converting Images for LCD/OLED: A Guide to Image2Lcd
void LCD_WR_DATA(uint8_t data) LCD_CS_LOW; LCD_DC_HIGH; // DC High = Data HAL_SPI_Transmit(&hspi1, &data, 1, 100); LCD_CS_HIGH;
Supports top-to-bottom, bottom-to-top, left-to-right, and right-to-left data arrays. For a standard 128×64 OLED, the correct Image2LCD
Set this to C Array (*.c) . This generates a file you can include directly in your IDE (like Keil, Arduino, or STM32CubeIDE).
The problem was the register. The Image2LCD utility had done its job, converting the pixel map into a sea of hexadecimal values, but the driver chip on the display—a obscure model, the ILI9341—was stubborn. It demanded a specific handshake, a secret knock to open its doors.
When working with graphical LCDs (like ILI9341, SSD1306, ST7789, or NT35510), the display controller requires an initialization sequence — a set of commands and parameters written to its registers. Image2LCD is primarily an image conversion tool, but it can also help generate for framebuffers. However, the register initialization code itself usually comes from the display’s datasheet or a controller library.
This article covers how the software operates, how licensing affects its output, and how to integrate its generated code into your microcontroller projects. What is Image2Lcd?