“Obviously, the first thing we tried was to send messages [to the board] via the Twilio API. Unfortunately that was blocked – too easy. A brief glance at the Particle code made me think that it would be an avenue of attack, but it seemed like it had to be physically connected”

“So this left somehow automating the task of sending commands via our phones. We did some testing during the keynote (cough) and determined that there was some level of rate limiting or just natural rate limits in the request response loop through the sms interface and realized that we would need to split this task across multiple devices to have a chance of completing a picture before it was too damaged by random other conference-goer activity.”

const rgbHex = require('rgb-hex');
var getPixels = require("get-pixels")

getPixels("pattern.png", function(err, pixels) {
  if(err) {
    console.log("Bad image path")
    return
  }

  for (x = 0; x < pixels.shape[0]; x  ) {
    for(y = 0; y< pixels.shape[1]; y  ) {
      console.log("'"   x   "," y "," rgbHex(pixels.get(x,y,0), pixels.get(x,y,1), pixels.get(x,y,2)) "',");
    }
  }
})