puck.js - Improve long delay advertising

Ok, and you're saying that clicking on the timestamp inject button is basically instant as well?

You can do this on the Puck:

var pressCount = 0;
setWatch(function() {
  pressCount++;
  NRF.setAdvertising({
    0xFFFF : [pressCount]
  },{interval:50});
}, BTN, { edge:"rising", repeat:true, debounce:50 });

Which will really raise the advertising interval so more packets get through (but it'll drain the battery faster unless you lower it again a while after the click).

What happens if you do mosquitto_sub -v -t "/ble/advertise/de:70:d9:0c:eb:86/ffff" at the terminal on the Pi? You'll need to change the address to yours.

I just tried it here from about 10 metres away and through 2 walls, and the response is almost instant.