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  • Aaah, no SPI? well then, better use an AT24! (AT24 is I2C, AT25 is SPI).

    Does the SD card work over software SPI?

    ESP8266 - there are a few other board layouts for this making the rounds, at similar prices to the others. Some of these have castellated pads, which might make them a better choice for our purposes.

    Re: Castellations - I certainly see the appeal, I think this is a good idea - it would make it just so easy to put the Espruino Pico onto a larger board. I can't see any issues, except maybe a slightly higher risk of accidental shorts. Can this be done without making the board larger?


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