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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Gordon
It's exactly your code, with the software SPI uncommented.
To me, code 255 sounds like SPI MISO is shorted high somehow or not connected. Could you send me a picture of the shim as you've soldered it on?