Ring-sized watch

Thanks to @GordonGordon's and @allObjects' suggestions I've distilled the code to the following, as well as wiring up the rest of the cathodes and anodes, resulting in the attached video.

const cathodes = [D24,D28,D27,D23];
const anodes = [D31,D1,D11,D29,D2,D30,D6,D7];
const patterns = [63,6,91,79,102,109,125,7,127,111];
const zero = '0'.charCodeAt(0);

var count = 0;
var k = 3;
var pattern = "   0";

function onInit() {
  setTimeout(update, 0);
  setInterval(() => {
    if (++count == 10000) {
      count = 0;
    }
    pattern = ("   " + count.toString()).slice(-4);
  }, 25);
}

function update() {
  "compiled";
  digitalWrite(anodes, 0);
  digitalWrite(cathodes[k++], 1);
  if (k >= cathodes.length) {
    k = 0;
  }
  var ch = pattern[k];
  if (ch >= '0' && ch <= '9') {
    digitalWrite(cathodes[k], 0);
    digitalWrite(anodes, patterns[ch.charCodeAt(0) - zero]);
  }
  setTimeout(update, 0);
}

1 Attachment

• QDSP-6064 test.mp4