Attempting (and failing) to use a 74HC595 Shift Register

I've been trying to light a few LEDs using the above shift register without success. I'm having to translate from Arduino guides to Espruino/Puck.js, so undoubtedly I've got something wrong.

I've tried using SPI1.setup() as well as let s = new SPI(); s.setup();, but neither work.

The options I'm passing to setup are:

  let options = {
    sck: PINS.CLOCK,
    // miso: PINS.LATCH,
    mosi: PINS.DATA,
    order: 'lsb',
    mode: 0,
  };

And I've tried using s.write([0, 1, 0, 0, 0, 0, 0, 0], PINS.LATCH) as well as manually setting the latch low/high around the write.

Wiring is as follows (the comment is the pin number on the shift register itself):

const PINS = {
  DATA: D28, // 14
  LATCH: D29, // 12
  CLOCK: D30, // 11
};

And finally, I've supplied power and ground where required (I think!), at pin 1 for ground, and pins 10 (SRCLR) and 16 (VCC) are high.

Absolutely any help at all will be massively appreciated. Thanks!