[Tommy] has a great write-up about designing and building a minimalistic handheld electronic game called “Higher Lower”. It’s an audio-driven game in which the unit plays two tones and asks ...

It would be nice if the SDIO pins were defined for this variant like other variants. A pinout diagram is here. I think this is the correct definition. // SDIO #define PIN_SD_CLK (18u) #define ...

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