Next 2 bytes (0x16 to 0x17) BMP file provides number of color planes. Next 2 bytes (0x14 to 0x15) BMP file provides height of the BMP image, in pixels. Next 2 bytes (0x12 to 0x13) BMP file provides width of the BMP image, in pixels. Next 4 bytes (0x0E to 0x11) BMP file provides size of the header. Next 4 bytes (0x0A to 0x0D) BMP file providing the offset, i.e., starting address, of the byte where the bitmap image data (pixel array) can be found. Next 4 bytes (0x05 to 0x09) BMP file are reserved. Next 4 bytes (0x02 to 0x05) BMP file providing the file size. The first 2 bytes of the BMP file format are the character "B" then the character "M" in ASCII encoding.
RPi Pico GPIO pin GPIO0, GPIO1 and GPIO2 are connected to CS, RST and DC\RS pin of TFT LCD.Īll of the integer values in a bitmap file are stored in little-endian format (i.e., least-significant byte first) RPi Pico SPI port is connected to the LCD (GPIO6 - SCLK, and GPIO7 – MOSI).
3.5 DIGITAL PHOTO FRAME PORTABLE
The ILI9488 supports 8-colors display and sleep mode power management functions, ideal for portable products where battery power conservation is desirable, such as digital cellular phones, smart phones, MP3 players, personal media players and similar devices with color graphics displays. The ILI9488 is comprised of a 960-channel source driver, a 480-channel gate driver, 345,600 bytes of on chip GRAM for graphic data of 320 (RGB) (H) x 480 (V) x 18 dots.
3.5 DIGITAL PHOTO FRAME DRIVER
The ILI9488 LCD Controller is a 16.7M single-chip SoC driver for a-Si TFT liquid crystal display panels with a resolution of 320(RGB) x 480 dots. The LCD is easily interfaced with RPi Pico SPI bus, and it needs minimum of four Digital IO lines. The TFT LCD (3.5 inch, 320x480 pixel, ILI9488 LCD controller), is used for this instruct-able. It uses python program for implementing file read, bitmap image handling functionalities. This experiment displays, externally stored (SD Card) images on TFT screen. The photo frame experimentation is about interfacing 320x480 TFT LCD and Micro SD Card with Raspberry Pi Pico. The SD card module provides the micro memory card interface and it is connected to RPi Pico via SPI port. These days SD cards are available with 4GB to 128GB memory size. Secure Digital Card, abbreviated as SD Card is a non-volatile memory card, commonly used to write and read large quantities of data in smart devices.
It needs minimum number of port pins (4). The TFT LCD can be connected to the Raspberry Pi Pico SPI bus. In this instruct-able, explains about connecting the 320x480, 3.5Inch TFT LCD, with ILI9488 driver and SPI interfacing into Raspberry Pi Pico. Nowadays beautiful TFT LCD screens are getting cheaper and using it in an embedded design, makes it more user friendly. It provides wide range of flexible I/O options includes I2C, SPI, and uniquely Programmable I/O (GPIO) pins. Extreme compact size with fashionable design makes it a perfect gift for any lady.The Raspberry Pi Pico is a tiny, fast, and versatile board built using RP2040 features a dual-core Arm Cortex-M0+ processor with 264KB internal RAM and support for up to 16MB of off-chip Flash.
3.5 DIGITAL PHOTO FRAME PC
Its high contrast ratio delivers better picture quality and no PC is required for use. View and share your photos on the go! The cenOmax F350 FrameMate is a slim size digital photo frame that gives you an alternative way to view, share and carry your special moments wherever you go.
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