Flip dots example with Node.js for Raspberry Pint talk

flipdot_raspberry_pint.js

import FlipDot from 'flipdot-display';
const flippy = new FlipDot('/dev/ttyUSB0', 6, 7, 84);

async function sleep(millis) {
  return new Promise((resolve) => {
    setTimeout(resolve, millis);
  });
}

flippy.once('open', async function() {
  console.log('Writing...');
  await sleep(5000);
  const SLEEP_TIME=1000;
  flippy.writeText('FLIP DOTS!', { font: 'Banner' }, [0, 8], false, true);
  flippy.send();
  await sleep(SLEEP_TIME);
  flippy.writeText('AT', { font: 'Banner' }, [0, 35], false, true);
  flippy.send();
  await sleep(SLEEP_TIME);
  flippy.writeText('RASPBERRY', { font: 'Banner' }, [0, 6], false, true);
  flippy.send();
  await sleep(SLEEP_TIME);
  flippy.writeText('PINT', { font: 'Banner' }, [0, 30], false, true);
  flippy.send();
  await sleep(SLEEP_TIME);
  flippy.writeText('MAY 30 7PM', { font: 'Banner' }, [0, 7], false, true);
  flippy.send();
  await sleep(SLEEP_TIME);
  flippy.fill(0xFF);
});