0x01 0x02 0x04 0x08 0x10
// Send the register code to the display GPIO_WriteBit(DISPLAY_RS_PIN, 1); // Set RS pin high GPIO_WriteBit(DISPLAY_RW_PIN, 0); // Set RW pin low GPIO_WriteBit(DISPLAY_E_PIN, 1); // Set E pin high // Transmit the register code and data // ... GPIO_WriteBit(DISPLAY_E_PIN, 0); // Set E pin low image2lcd register code
for page in 0..(height/8 -1): set_page_address(page) // command sequence set_column_address(0) for col in 0..width-1: data = pack_vertical_8pixels(x=col, page) write_data_register(data) 0x01 0x02 0x04 0x08 0x10 // Send the
: Tells the screen you are about to send image data. // Set RS pin high GPIO_WriteBit(DISPLAY_RW_PIN
When interfacing a microcontroller (e.g., STM32, ESP32, Arduino) with a graphical LCD, you need two things:
set_column_address(x0, x1) set_page_address(y0, y1) start_memory_write() for y in y0..y1: for x in x0..x1: write_data16(rgb565(pixels[x,y]))