Uploaded June 2025 | Updated September 2026, 11 hours ago

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In this video, I show you the implementation of the FatFs file system together with an SPI SD card module using the CH32V003F4P6 microcontroller. I also reused the previous project's code, so I can save "real-life data" on the SD card.

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Affiliate links:
CH32V003F4P6: https://s.click.aliexpress.com/e/_DdUKRAz
WCH-LinkE Programmer: https://s.click.aliexpress.com/e/_DdUKRAz
SD card module: https://s.click.aliexpress.com/e/_oEEp43b
DS18B20 thermometer: https://s.click.aliexpress.com/e/_omGpj3Z

Article: https://curiousscientist.tech/blog/ch32v003f4p6-spi-sd-card-fatfs
Resources: wch-ic.com/products/CH32V003.html
Parts and tools: https://curiousscientist.tech/tools
FatFs: elm-chan.org/fsw/ff