SD Media Player, File Browser and Viewer with STM32 and ST7735 LCD
Features:
- SD file browser with one button
- Short click for next file/switch stat mode
- Long click to show file or exit the viewer
- Semi-transparent progress bar
- Long file names (up to 22 characters fit on the screen) and file size displayed
- RAW 160x128 video files supported @ 41fps
- BMP pictures in 24-bit and 8/4-bit with palette
- basic text files viewer
JPEG support:
Parts:
- cheap “bluepill“ STM32 ($)
- 160x128 ST7735 LCD ($)
- SD card
Comments:
- SD uses faster STM32 SPI1 interface which supports 36 Mbps
- SPI1 is shared between LCD and SD card
- Not all SD cards work at 36Mbps
- Fast card at 36Mbps gives 41fps for 160x128 video
- SdFat library uses DMA for SPI transfer
- Big buffer in RAM is used to speed up SPI/DMA transfer
- Requires SdFat, Arduino_ST7735_STM and RREFont libraries and stm32duino
- If you don’t want to play with IDEs bin ready to flash is available too
- Use ffmpeg to convert any video, example syntax:
“ -i ““ -an
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