It'll be MISO, MOSI or SCK
Which device are you running Espruino on?
It seems from your post history it may be ESP8266. In which case SPI can be put on any pins, so rather than listing all pins SPI.find won't list any.
SPI.find
@Gordon started
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.
It'll be MISO, MOSI or SCK
Which device are you running Espruino on?
It seems from your post history it may be ESP8266. In which case SPI can be put on any pins, so rather than listing all pins
SPI.find
won't list any.