What if you set the baud rate as suggested above:
SPI1.setup({mosi:B5, miso:B4, sck:B3,baud:1000000});
@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.
What if you set the baud rate as suggested above: