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The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.
I wrote some pi pico code to interface the max7219 but it's extremely optimized for the pi pico (uses DMA and programmable io features) but you could use it or something else as an example of how the interface works and is subtly different from spi. https://github.com/jamon/pico-max7219-8x8-led-matrix
I use LedMatrixDriver instead for my ESP32 Stock Ticker. Maybe give it a try instead.
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